Reliable diagnosis.
Time-saving repairs.
Bosch Diagnostics and service parts.
Everything from one single source
Bosch has a full range of products available to increase
efficiency and quality in the workshop’s everyday routine.
The globally operating developer and leading manufacturer
of automotive system technology provides service parts
in familiar original equipment quality.
Bosch Diagnostics offers workshops perfectly matched
hardware and software, technical training courses, a technical hotline and a knowledge database. All with a practical
focus and covering all brands.
Spare parts and accessories
Engine management | Gasoline injection
Expertise and quality – for the future of your workshop
Editorial closing: 31. 07. 2007
Subject to change without
notice. Please direct questions
and comments to our
Authorized Representative in
your country. This edition
supersedes all previous
editions.
2008 | 2009
Engine
management
Gasoline injection
2008 | 2009
4 047023 038968
Just right!
Lambda sensors from Bosch
Explanation of symbols
Part number
Date / Production period
The right sensor!
The right cable!
The right connector!
Electric fuel pump (in-line/in-tank)
Universal electric fuel pump
EKP non-return valve
Search number
Passenger cars
Original equipment number / Return number
Passenger cars / Small vans
Core deposit values
Quantity per pack
O-rings - Quantity per injector
pcs
Fuel inje ctor
O-ring on top
O-ring below
Parts kit
Export market
Special case
Convincing reasons for choosing Bosch lambda sensors
Bosch invented the lambda sensor.
Bosch has the most know-how in terms of development and
production. Since then Bosch has made more than 400 million
lambda sensors.
Bosch lambda sensors are all available in OEM quality.
Bosch has patented this convincing technology.
Most automobile manufacturers around the world use
Bosch lambda sensors as original equipment.
As market leader in the OEM and aftermarket sector, Bosch has
the ideal replacement sensor for more than 80 % of all vehicles.
Bosch has a comprehensive range of multipurpose lambda
sensors.
The multipurpose lambda sensors won awards at the Auto-
mechanika 2004 and the “Equip Auto 03” exhibition in Paris.
All your advantages at a glance:
Bosch lambda sensors…
… always right
through exact application data.
… save up to 15 % fuel
… avoid expensive consequential damage
as, e.g. a faulty catalytic converter.
… minimize emissions
The most stringent emission levels can be complied with.
… optimize engine performance
… are resistant
to splash water and contamination through the use of a stainless,
laser-welded steel casing.
… have a long service life
through continuous innovations such as, e.g. optimized protective
electrode layers and suitable protective tube devices.
… undergo 100 % functional testing in the manufacturing plant
… come with a pre-greased thread
Technology, program
Content
A 2 Counterfeit and imitation products
A 3 More than 100 years of Bosch ignition systems
A 4 Ignition and gasoline-injection systems from Bosch
A 6 Gasoline injection systems
A 14 Electric fuel pumps
A 20 Sensors
A 21 Gasoline injectors
A 22 Ignition coils
A 24 eXchange – Back in Box
Applications
Cross-reference
A 26 eXchange – conditions for component return
A 30 Gasoline injection components
A 46 Central injection unit (ZEE)
A 50 Parts-assortment case
A 54 List of applications for O-rings
A 72 Low-way plug-in connections
B 1 Vehicle-specific equipment
B 2 Overview contents
B 9 Passenger cars, vans
C 2 Non-Bosch Bosch
C 92 Bosch-original parts (new) Bosch Exchange (BX)
C 99 Bosch (OE) Bosch Aftermarket (IAM)
2008 | 2009 Bosch Automotive Aftermarket
A2 |
A2 | Counterfeit and imitation products
Counterfeit and imitation products
Important information
Warning about Lambda sensors
Be wary of using universal sensors which do not meet the standards
of vehicle manufacturers. There is a risk of premature damage and
thus failure of the Lambda sensor. In the interests of your customers please therefore make exclusive use of genuine Lambda sensors or universal Lambda sensors from Bosch.
Warning about electric fuel pumps
Certain rival companies make use of inferior imitation products instead of high-performance Bosch pumps. This can lead to problems
when driving and to a loss of engine power due to an inadequate
fuel supply. In the interests of your customers please therefore
make exclusive use of genuine fuel pumps from Bosch.
Warning about the use of non-Bosch air-mass meters
Only genuine air-mass meters from Bosch can ensure compliance
with the legally prescribed emission values. The vehicle homologation will be invalidated if use is made of air-mass meters from other
manufacturers. In addition, this can result in a considerable loss of
engine power and thus higher fuel consumption.
Warning about ignition coils
Bosch ignition coils always provide the engine with sufficient energy
for the ignition spark. This prevents cold-starting difficulties and
exhaust-emission test problems. The high-grade plastic or asphalt
insulation materials used by Bosch ensure a high breakdown voltage
and guard against the risk of fire, in contrast to the oil-based products of certain low-cost suppliers. High-precision, corrosion-proof
connections form the basis for a long product service life.
More than 100 years of Bosch ignition systems | A3
More than 100 years of Bosch ignition systems
1
2
7
Bosch started supplying high-voltage magnetos and spark plugs
as far back as 1902.
After 1910 the ignition distributors were separated from the
high-voltage source.
When Robert Bosch AG presented the battery-ignition system
in 1925, magneto ignition was predominant in the automotive
industry. This was considered to be the most reliable form of
ignition system.
At the same time, vehicle manufacturers were demanding a less
costly system and in the light of constant progress battery ignition
quickly became established in the automobile and motorcycle
industry throughout Europe.
8
6
5
3
4
In 2001, Bosch celebrated 50 years of gasoline injection.
The first experiments with injection systems for gasoline engines
took place in 1921. Following extensive trials between 1923 and
1928, gasoline injection was initially restricted to aircraft engines.
Whereas reliability and increased performance were the crucial
aspects with regard to aircraft engines, the economy aspect was
the main motivation in the development of automobile gasoline injection systems.
The Bosch gasoline-injection system presented at the Frankfurt
Motor Show in 1951 for the Gutbrod Superior two-stroke engine
achieved fuel savings of around 20 percent and raised the vehicle
power from 23 to 28 hp.
Nowadays, more advanced versions of this type of ignition are
standard equipment in virtually every gasoline-engine motor vehicle.
Spark plugs
H.T. cables
Distributor cap
Distributor rotor
Ignition distributors
Ignition coil
From battery
To contact breaker
The power-enhancement aspect was however the major factor in
the first mass-produced four-stroke vehicle with gasoline injection
(Mercedes 300 SL). The advantages offered by fuel injection ousted
the carburetor.
In 1967, in the light of stringent US emission legislation,
VW launched the 1600 TL with Bosch-Jetronic, thus marking the
introduction of electronic injection control. By 1972 the Jetronic
system was the choice of 18 manufacturers and well on its way
to success.
A4 | Ignition and gasoline-injection systems from Bosch
Ignition and gasoline-injection systems from Bosch
More than a century of system expertise
Renowned vehicle manufacturers rely on Bosch as original equipment supplier and thus form the basis for a fruitful replacement
parts business.
In addition to the full range of more than 10,000 items for gasolineinjection systems, Bosch also supplies the aftermarket and workshop sector with the appropriate replacement and wear parts.
1902 Delivery of the first high-voltage magneto and the first spark
plug
1910 Separation of ignition distributor and high-voltage source
1925 Presentation of battery-ignition system by Robert Bosch
GmbH
L-Jetronic components
KE-Jetronic components
1951 Presentation of Bosch gasoline-injection system at the
Frankfurt Motor Show
1967 First emission legislation in the USA
Introduction of the first electronic injection system:
The D-Jetronic controlled by intake-manifold pressure.
1973 Energy crisis – fuel consumption becomes the focus of
development efforts
Market launch of the L-Jetronic with air-flow sensor and the
K-Jetronic with mechanical-hydraulic control – this was also
an air-flow sensing system.
1976 Bosch invents the Lambda sensor, thus paving the way for the
closed-loop-controlled catalytic converter.
1979 Motronic market launch
The unique feature of this system was the digital processing
of a wide range of engine functions. It combines the
L-Jetronic principle with electronic map-controlled ignition.
The first microprocessor to be fitted in a motor vehicle.
1981 LH-Jetronic market launch
Instead of a flap-type air-flow sensor, the basic L-Jetronic
system was equipped with a hot-wire air-mass meter and
marketed for the first time as LH-Jetronic.
Motronic components
Bosch Automotive Aftermarket 2008 | 2009
1982 KE-Jetronic market launch
The K-Jetronic was extended to include an electronic
control loop and the Lambda sensor and was employed
for the first time in a mass-produced vehicle in the
form of the KE-Jetronic.
1987 Mono-Jetronic market launch
The Mono-Jetronic is a particularly inexpensive single-point
injection system, making it feasible to equip even smaller
vehicles with Jetronic.
1989 Mono-Motronic market launch
The Mono-Motronic is a more advanced form of the MonoJetronic and has been extended to incorporate an electronic
map-controlled ignition and a microprocessor.
Ignition and gasoline-injection systems from Bosch | A5
1989 Electronic throttle control (ETC)
With ETC systems, the driver input is detected by a sensor
at the accelerator pedal. The Motronic control unit evaluates
the sensor signal and adjusts the electric motor-driven
throttle valve, taking into account other vehicle and engine
data.
1997 Increasing use of intake modules
Intake modules are pre-assembled units comprising the
intake manifold with injectors, throttle-valve unit, pressure
regulator etc.
2000 Market launch of Motronic gasoline direct injection
The Motronic MED 7 system with torque-based control makes
it possible to combine extremely economical fuel consumption and highly dynamic performance.
Mono-Jetronic components
Intake module
Gasoline direct injection
2008 | 2009 Bosch Automotive Aftermarket
A6 | Gasoline injection systems
Gasoline injection systems
K-Jetronic
7
6
5
9
Further technical information can be found
in the “K-Jetronic” booklet.
Part number 1 987 722 159.
The booklets are available from franchized
Bosch wholesalers.
10
2
The K-Jetronic is a mechanical system in
which the fuel is constantly metered on the
basis of the volume of air drawn in by the
engine.
The K-Jetronic was used as original equipment in mass-produced vehicles between
1973 and 1995. Since then, the K-Jetronic
has only been of relevance in terms of
service and maintenance work.
Further technical information can be found
in the “KE-Jetronic” booklet.
Part number 1 987 722 101.
The booklets are available from franchized
Bosch wholesalers.
13
9
11
The KE-Jetronic is a mechanical/electronic
injection system based on the K-Jetronic.
Additional electronics record a variety of
measurement quantities at the engine, thus
permitting optimization of fuel requirements
and emission quality.
Further technical information can be found
in the “L-Jetronic” booklet.
Part number 1 987 722 160.
The booklets are available from franchized
Bosch wholesalers.
9
6
The L-Jetronic is an electronically controlled injection system featuring air-flow
measurement based on the sensor-plate
principle and electromagnetically controlled
fuel injection into the intake manifold. All
engine-related changes are recorded by
a variety of sensors and processed in the
electronic control unit. This ensures constant good emission quality in combination
with low fuel consumption.
Further technical information can be found
in the “L-Jetronic” booklet.
Part number 1 987 722 160.
The booklets are available from franchized
Bosch wholesalers.
9
6
The LH-Jetronic is closely related to the
L-Jetronic. It differs in terms of the recording of the volume of air drawn in by the
engine, which in this case is performed by
a hot-wire air-mass meter. This measures
the air mass drawn in by the engine.
The measurement result is thus independent of temperature and pressure.
7
2
10
1
Electric fuel pump
Fuel filter
Fuel-pressure regulator
Injector
Hot-wire air-mass meter
Engine-temperature sensor
Rotary idle actuator
Throttle-valve switch
Lambda Sensor
N Electronic control unit
2008 | 2009 Bosch Automotive Aftermarket
A10 | Gasoline injection systems
Mono-Jetronic
6
5
4
7
3
2
8
9
Further technical information can be found
in the “Mono-Jetronic” booklet.
Part number 1 987 722 105.
The booklets are available from franchized
Bosch wholesalers.
The Mono-Jetronic is an electronically
controlled single-point injection system in
which a solenoid injector injects the fuel
for all cylinders at a central location above
the throttle valve. The operating data are
recorded by way of sensors and converted
into injection pulses in an electronic control
unit.
10
1
Electric fuel pump
Fuel filter
Throttle-valve potentiometer
Pressure regulator
Injector
Connector with intake-air temperature
sensor
Throttle-valve actuator
Engine-temperature sensor
Lambda Sensor
N Electronic control unit
Bosch Automotive Aftermarket 2008 | 2009
Motronic manifold injection
Gasoline injection systems | A11
Further technical information can be found
in the “Motronic” booklet.
Part number 1 987 722 161.
The booklets are available from franchized
Bosch wholesalers.
12
10
6
9
3
4
11
The Motronic combines the injection and
ignition systems to form an engine-management system. Fuel metering and ignition are
optimally matched. Other electronic functions can also be incorporated. Digital data
processing and the use of microprocessors
make it possible to convert a wide range of
operating data into map-controlled injection
and ignition data.
The principal function of the engine-management system is to set the driver’s torque
input whilst at the same time achieving
optimum fuel consumption and the lowest
possible emission level. The ME-Motronic
engine-management system combines
all the sub-systems required for this: The
electronic throttle control (EGAS) sets
the amount of air needed to generate this
torque. The corresponding fuel mass is controlled in the gasoline injection sub-system
and the ignition sub-system sets the appropriate ignition point as well as the necessary ignition energy.
In combination with other electronic systems in the vehicle, the ME-Motronic also
enhances ride comfort and user safety. If,
for example, an ABS or ESP system requires
a specific engine torque to provide vehicle
traction, the ME-Motronic sets the necessary torque.
The sub-systems have become more closely
integrated in order to deal with this wide
range of engine-management tasks.
Engines with gasoline direct injection form
the air/fuel mixture directly in the combustion chamber. Only fresh air flows through
the open intake valve on the induction
stroke. Special injectors inject the fuel
directly into the combustion chamber at
high pressure. Exact metering, conditioning and distribution of the air and fuel for
each individual combustion stroke permit
economical fuel consumption and a low
level of emissions. With its torque-based
electronic control function, the DI-Motronic
from Bosch sets new standards in the field
of gasoline direct injection. The intelligent
system adapts all the relevant quantities to
the corresponding driving situation with a
high degree of accuracy. In part-load mode
it generates a lean stratified air/fuel mixture
and at full load a homogeneous mixture.
Operation: With gasoline direct injection,
the high-pressure pump supplies the
high-pressure circuit with fuel at the high
pressure required for the fuel rail. The highpressure injector attached to the fuel rail
very quickly meters and atomizes the fuel
at high pressure, thus ensuring the bestpossible formation of the air/fuel mixture
directly in the combustion chamber.
J Electronic control unit
N Diagnosis interface
O Diagnosis lamp
Q Immobilizer
M CAN
K Delivery module with presupply pump
, Speed sensor
2008 | 2009 Bosch Automotive Aftermarket
A14 |Electric fuel pumps
Electric fuel pumps
Replacement parts range and “in-tank” units
Cutting-edge technology sets new standards
The winning features of Bosch fuel pumps and delivery units:
Maximum pulsation-free performance (pressure/delivery)
for constant injection pressure
Longer service life thanks to extensive filter area
Improved ride comfort due to lower noise level
Extremely compact dimensions and low weight simplify
installation
Outstanding reliability even for “in-tank” applications
Capacitor and interference suppression cap provide excellent
protection against signal interference
Comprehensive market coverage with fuel pumps and in-tank
units from Bosch
Broadest possible market coverage with series-production
pumps and modules
New “present value” repair options for fuel-supply modules for
10 million vehicles in Europe
Top quality level – all products supplied by Bosch are of original-
equipment standard
Universal range with only 7 types for 72 original-equipment
pumps
Aftermarket range also includes fuel pumps for modern diesel-
injection systems such as common rail and unit injector
Long-term availability of all products – at competitive prices
Bosch Automotive Aftermarket 2008 | 2009
The universal range “7 instead of 72”
Electric fuel pumps | A15
One type for a variety of applications: The universal electricfuel-pump range from Bosch
The 72 pumps used in the past can now be replaced by just
7 universal electric fuel pumps from Bosch. The key to this is
a parts set. Each of the 7 electric fuel pumps is supplied with
a parts set and easy-to-follow installation instructions. These
pumps form the Bosch universal range.
Bosch quality
Crucial criteria for electric fuel pumps:
Maximum operational reliability
Compliance with all original-equipment demands
Long service life
Low noise level
Optimum fuel delivery
Maximum possible safety for hot-fuel delivery
Excellent interference-suppression level
Warning about imitation pumps
Certain rival companies make use of inferior imitation products
instead of high-performance Bosch pumps. This can lead to
fuel-delivery problems and to a loss of engine power due to an
inadequate fuel supply. In the interests of your customers please
therefore make exclusive use of genuine fuel pumps from Bosch.
On certain electric fuel pumps the nonreturn valve integrated into the threaded
socket on the delivery end can be replaced.
Each of the parts sets listed comprises the
genuine threaded socket with non-return
valve and a corresponding sealing ring.
Even compact vehicle models are currently fitted with more than
50 individual sensors. With the exception of the Lambda sensor the
majority are not subject to wear, but accidents or other influences
may cause damage.
As the leading supplier of original-equipment automobile sensors,
Bosch can also offer the most comprehensive aftermarket range in
this sector. Suitable replacement parts can be found for nearly all
repair applications. In addition, Bosch provides workshops with the
essential electronic diagnosis techniques for the identification of
defective sensors.
The Bosch sensor range comprises several hundred different types.
The types of sensor based on ultra-modern micro electromechanical systems (MEMS) span a field of applications including pressure,
acceleration and yaw-rate detection. The wide range of conventional
measuring elements available extends from speed sensors and
hot-film air-mass meters or Lambda sensors right through to sensors
for automatic air-conditioning systems.
Bosch Automotive Aftermarket 2008 | 2009
Gasoline injectors
Bosch is the worldwide market leader
Gasoline injectors | A21
A Bosch milestone: 40 years of manufacturing expertise
Bosch manufactures 80 million gasoline injectors every year at
seven production plants distributed around the world. With particularly high market shares in Western Europe, the NAFTA area,
and China, Bosch is way out in front as the world-market leader.
Bosch has the innovative answers for optimized gasoline-injection
systems and natural-gas injectors:
2001: EV14 for manifold injection – an optimized injection
orifice plate and finer atomization permit a reduction of up to
15 percent in hydrocarbon emissions.
2005: Injectors for environmentally compatible, inexpensive
natural gas – as compared to conventional gasoline, carbon dioxide emissions can be reduced by up to 30 %.
Refinement of the DI-Motronic gasoline direct-injection system
to obtain a jet-directed combustion process: Consumption can be
reduced by up to 15 % in comparison with manifold injection.
Parallel development of solenoid-controlled high-pressure
injectors with multihole nozzle suitable for all gasoline direct injection combustion processes.
2008 | 2009 Bosch Automotive Aftermarket
A22 |Ignition coils
Ignition coils
Innovative plastic ignition coils of original-equipment standard
Bosch ignition systems set new standards
in engine management
Thanks to the expertise obtained from the
development of injection systems, Bosch
ignition systems are always ideally adapted
to the engine concerned and ensure low
fuel consumption and high power in combination with good emission values. This
means that compliance with ever more
stringent emission legislation can always
be guaranteed.
100 years of Bosch ignition
Bosch’s unrivalled wealth of experience in
the field of ignition technology makes all
the difference when it comes to developing
original equipment. Bosch ignition systems
offer the safety and reliability of established
system technology whilst at the same time
incorporating the latest research findings.
Market coverage and range expansion
At Bosch, technological development is a
constantly ongoing process. Keeping a close
eye on the market, technical innovations are
incorporated into engine production in close
cooperation with the automotive industry.
As a result, the range and thus also market
coverage are constantly being expanded.
Bosch is also a worldwide supplier of
plastic ignition coils for the automotive
industry
The use of Bosch plastic ignition coils
guarantees all the benefits of original
equipment:
Outstanding quality, comprehensive range, top-class service
1. Delivery of genuine Bosch exchange product. 2. Replace the corresponding old part with the exchange product.
Note:
Gasoline-injection engine management
Deposits can only be redeemed if the old item is returned in the
Hot-film air-mass meter5
Hot-wire air-mass meter20
Air-flow sensor10
Fuel distributor20
Electronic control units20
Central injection unit (ZEE) - top section10
Central injection unit (ZEE) - bottom section10
Ignition distributors10
packaging of the exchange product supplied.
Advantages:
Protection of old items on return shipment
Faster processing of old items as old part is easier to identify
Disposal of packaging no longer necessary
3. Place the old part in the packaging of the exchange product. 4. Return the old part to Bosch in the sealed packaging.
The comprehensive, intelligent exchange range
Currently a total of 21 product groups from the starter/alternator,
diesel/gasoline-injection and brake-caliper sectors
High degree of market coverage for all the major motor-vehicle
manufacturers
Constant updating of range
Top class service in the form of product information and technical
Outstanding quality at attractive prices
Quality standards comparable to original equipment
100 % replacement of all critical components
Consistent use of genuine Bosch replacement parts
Same warranty as for new products
media such as ESI[tronic] from the diagnostic sector
Quick and easy processing of old items
Damage to bolts, bolts
screwed out and projecting, incorrect bolts
Damage to plug-in sensor and plug connection
Returned item not accepted if:
Not a genuine Bosch assembly
Severe corrosion
Assembly incomplete or dismantled
Assembly manipulated
Mechanical damage
Damage to temperature
sensor
Damage to cylinder
housing
Damage to cylinder
housing or strainer
element
Damage to electronics
housing (no cover) or
plug connection
Bosch Automotive Aftermarket 2008 | 2009
eXchange – conditions for component return | A27
Air-flow sensor Control unit
Returned item not accepted if:
Not a genuine Bosch assembly
Severe corrosion
Assembly incomplete or dismantled
Assembly manipulated
Mechanical damage
Damage to plastic
housing
Damage to aluminum
housing
Returned item not accepted if:
Not a genuine Bosch assembly
Severe corrosion
Assembly incomplete or dismantled
Assembly manipulated
Mechanical damage
Damage to housing,
screw connection and
flange
Damage to connector
or terminal strip
Severe corrosion
Water damage or
housing opened
2008 | 2009 Bosch Automotive Aftermarket
A28 | eXchange – conditions for component return
Ignition distributor Central injection unit
(top/bottom section)
Returned item not accepted if:
Not a genuine Bosch assembly
Severe corrosion
Assembly incomplete or dismantled
Assembly manipulated
Mechanical damage
Damage to vacuum unit,
mounting plate
Damage to ignition
module, distributor shaft
or cap
Returned item not accepted if:
Not a genuine Bosch assembly
Severe corrosion
Assembly incomplete or dismantled
Assembly manipulated
Mechanical damage
Attention: Complete ZEE cannot be returned
Damage to housing
Damage to sealing
surfaces, thread,
throttle valve, control
lever
Distributor cap missing,
connector missing
Pressure regulator or
throttle-valve potentiometer missing
Bosch Automotive Aftermarket 2008 | 2009
Fuel distributor
eXchange – conditions for component return | A29
Returned item not accepted if:
Not a genuine Bosch assembly
Severe corrosion
Assembly incomplete or dismantled
Assembly manipulated
Mechanical damage
Severe damage to
housing (e.g. deformation
or cracks)
2008 | 2009 Bosch Automotive Aftermarket
A30 |Gasoline injection components
A30 |Gasoline injection components
Gasoline injection components
A to Z guide
Acceleration sensor
System:
Motronic
Purpose:
Compliance with OBDII requirements (engine management on-board diagnostics) demands
the detection of misfiring at individual cylinders as well as misfiring distributed randomly over
all the cylinders. This is achieved by recording the fluctuations in crankshaft speed. Speed
fluctuations also occur as a result of driving on particularly rough roads and frequent road
surface irregularities. Such road surface irregularities additionally give rise to extreme body
acceleration, which is measured by way of an acceleration sensor. This signal is used to block
the misfiring detection function.
Part number:
0 273 101 02.
Air-flow sensor
Systems:
L-Jetronic, Motronic
Purpose:
The air flowing into the engine deflects a sensor plate in opposition to the restoring force of
a spring. A potentiometer converts the deflection of the sensor plate into a voltage.
The electronic control unit uses this signal to calculate the quantity of fuel required.
The air-flow sensor and the fuel distributor together form the mixture-control unit. The two
components are available separately and must be replaced separately. The air flowing through
the air funnel deflects the sensor plate by a certain distance. The sensor-plate deflection is
transmitted to the fuel distributor by way of a lever system.
The air-mass meter is installed between the air filter and the throttle valve and measures
the intake-air mass. Use is made in practice of hot-wire and hot-film air-mass meters. Both
sensors operate on the same principle: An electrically heated thin platinum wire or platinum
film resistor is positioned in the intake-air flow together with a temperature sensor in the form
of a temperature-sensitive resistor. The electronic control unit is supplied with a voltage signal
proportional to the air mass flow and uses this signal to calculate the quantity of fuel required.
Part number:
0 280 21. ...,
BX: 0 986 280 1.. (HLM), 0 986 280 2.. (HFM)
Auxiliary-air device
Systems:
D, L, K-Jetronic, Motronic (some)
Purpose:
The auxiliary-air device is installed in a bypass around the throttle valve. In the warm-up phase,
the engine is supplied with additional air/fuel mixture to ensure stable idling. The auxiliary-air
device is electrically heated and closes the bypass with increasing engine temperature. The
bypass is completely closed off when the engine reaches operating temperature.
Part number:
0 280 140 001 – 0 280 140 299
Camshaft speed sensor
Systems:
Motronic
Purpose:
The camshaft position indicates whether an engine piston moving towards top dead center is
in the compression or exhaust stroke. The speed sensor at the camshaft (also referred to as
phase sensor) passes this information to the electronic control unit. Such sensors are used
where high accuracy is required. Further advantages include a comparatively large air-gap range
and good temperature compensation.
Part number:
0 232 10. ...
2008 | 2009 Bosch Automotive Aftermarket
A32 | Gasoline injection components
System:
Canister-purge valve
Motronic
Purpose:
Vapors are produced in the fuel tank due to external heat radiation or surplus fuel having
warmed-up in the engine compartment while flowing back from the fuel circuit. These vapors
are purged by way of an activated charcoal filter. This filter retains the fuel vapor and only
allows the air to escape into the open. This also ensures pressure equalization. For regular
regeneration of the activated charcoal, a further pipe containing the canister-purge valve is
routed from the carbon canister to the intake manifold. The canister-purge valve (regeneration
valve) is actuated such that the activated carbon canister is adequately purged with minimal
Lambda deviations.
Part number:
0 280 142 150 – 0 280 142 499
Central injection unit (Mono-Jetronic)
Systems:
Mono-Jetronic, Mono-Motronic
Purpose:
The main component of Mono systems is the central injection unit. This contains the injector,
the pressure regulator, the throttle valve, the throttle-valve actuator and sensors for intake-air
temperature and throttle-valve position. Bosch supplies the appropriate workshop parts sets
for repair work. The replacement parts range can be found as of Page A 46. The parts sets for
the top and bottom sections of the central injection unit are also listed in the vehicle applications (B Section).
Part number:
0 438 201 ...,
BX: 0 986 438 5.., 0 986 438 6..
Cold-start valves
Systems:
D, L, LH, K, KE-Jetronic, Motronic (some)
Purpose:
The cold-start valve injects additional fuel into the intake manifold during the starting phase.
In this process, the fuel is highly atomized by a swirl nozzle. The cold-start valve is attached to
the intake manifold so as to provide a uniform supply for all cylinders. The injection time of the
cold-start valve is limited by the thermo-time switch or the electronic control unit.
The coolant-temperature sensor measures the temperature in the coolant circuit and
provides the electronic control unit with an electric signal. The sensor comprises an NTC
thermistor embedded in a threaded sleeve or a plastic casing. The “coolant temperature”
signal is particularly important for the starting and warm-up phase.
Part number:
0 261 220 ..., 0 280 130 ...
Crankshaft speed sensor
System:
Motronic
Purpose:
A ferromagnetic gear wheel with reference mark (tooth gap) is attached to the crankshaft.
The speed sensor scans the tooth sequence. The electronic control unit uses the signal to
calculate the crankshaft position and speed. Some systems are fitted with two sensors.
Crankshaft position and speed are then measured separately.
Part number:
0 261 210 ...
Electric fuel pumps/in-tank units
Systems:
All systems
Purpose:
The electric fuel pump (EKP) must supply the engine with sufficient fuel at the pressure
required for injection under all operating conditions. The EKP is also increasingly assuming
the function of a pre-supply pump for modern direct-injection systems in both gasoline and
diesel engines. Principal requirements: Delivery rate between 60 and 200 l/h at rated voltage,
pressure in fuel system between 300 and 450 kPa (3...4.5 bar), build-up of primary pressure
as of 50 % to 60 % of rated voltage; cold-starting operation is definitive for this.
The electronic control unit determines the quantity of fuel required in each case and regulates
all the connected actuators and injectors. This is implemented on the basis of the signals from
the temperature, pressure and load-detection sensors. Electronic control units for Motronic
systems also control the ignition point. In modern systems, the ECU also assumes diagnosis
functions. Faults occurring are stored in the fault memory and can be read out using self diagnosis testers.
Note:
Electronic control units in vehicles with immobilizer sometimes have to be “taught”. This work
can only be performed in specially equipped workshops.
The fuel accumulator keeps the fuel-supply system pressurized after shutting off the engine.
This considerably enhances starting performance, particularly with a hot engine. The accumulator also has a sound-absorbing effect.
Part number:
0 438 170 ...
Fuel distributor
Systems:
K, KE-Jetronic, KE-Motronic
Purpose:
The fuel distributor and the air-flow sensor together form the mixture-control unit. The two
components are available separately and must be replaced separately. The fuel distributor’s
control plunger is deflected by the air-flow sensor’s lever system. The fuel distributor meters
the quantity of fuel to be injected to each cylinder.
Note:
Note: The fuel distributor can only be replaced as a complete unit. It cannot be assembled
using workshop equipment after removing individual components.
Along with the electric fuel pump, fuel filter, injectors and pressure regulator, the fuel rail forms
part of the fuel-supply system which always supplies the engine with the necessary amount
of fuel under all operating conditions. The pressure generated by the fuel pump is applied to
all injectors by way of the fuel rail. The unused fuel flows back to the fuel tank via a pressure
regulator. In most cases, the pressure regulator (fuel rail – conventional design with pressure
regulator) uses the intake-manifold pressure as a reference. The use of this typical pressure
and the flow through the fuel rail (fuel cooling) prevent the formation of any unwanted vapor
bubbles in the fuel.
Part number:
0 280 151 ..., 0 280 152 ...
High-pressure injector HDEV-1 + HDEV-5
Purpose:
The high-pressure injector (HDEV), one of the key components of a gasoline direct-injection
system, is linked by way of hydraulic connections to the fuel rail (KVS-HD) and is actuated via a
current-controlled output stage. The solenoid swirl valve injects a precisely metered quantity of
fuel with a defined spray pattern directly into the combustion chamber in finely atomized form.
The injected fuel quantity is determined by pressure, flow rate and the actuation time of the
injector. The spray geometry is matched to the requirements of the corresponding engine and
the combustion process.
Part number:
0 261 500 ...
High-pressure injector HDEV-4
System:
Motronic gasoline direct injection
Purpose:
The HDEV-4 is a high-speed piezo injector for gasoline with variable needle lift. The nozzle
opens outwards and ensures outstanding spray stability whilst at the same time being
extremely resistant to coking. The injector covers a wide metering range in which the quantity
characteristic curve is distinguished by a high degree of linearity.
The HDEV-4 can be employed for various combustion methods and injection concepts. Its rapid
and accurate multiple injection action opens up new potential for configuring the injection
process.
Part number:
0 261 500 ...
2008 | 2009 Bosch Automotive Aftermarket
A36 | Gasoline injection components
Purpose:
High-pressure pump HDP-1
The 3-barrel radial-piston high-pressure pump is driven by the camshaft via a coupling.
It compresses the fuel provided by the electric fuel pump up to 12 MPa and delivers it to the
high-pressure fuel rail (KVS-HD). The fuel cools and lubricates the high-pressure pump.
Part number:
0 261 520 ...
High-pressure pump HDP-2
System:
Motronic gasoline direct injection
Purpose:
In contrast to the HDP-1, the high-pressure pump HDP-2 is a unit pump. It is a demand regulated, intermittent-delivery 1-barrel piston pump with a maximum pressure range up to
120 bar. It features an integral pressure damper and the integrated fuel-quantity control valve.
The pump is of modular design for flexible adaptation to different customer requirements. The
HDP-2 is driven via the bucket tappet which is actuated by the camshaft. It is attached directly
to the cylinder head or to an adapter housing.
Part number:
0 261 520 ...
High-pressure pump HDP-5
System:
Motronic gasoline direct injection
Purpose:
The HDP-5 is a quantity-controlled single-barrel high-pressure pump for 4 to 8-cylinder engines.
In new engine projects it supersedes all the previous 1st-generation Bosch high-pressure
pumps (HDP-1 and HDP-2).
Part number:
0 261 520 ...
High-pressure sensor
Purpose:
The sensor installed in the high-pressure fuel rail is designed to detect the fuel-pressure level
in the rail. The pressure measured is used as actual quantity for rail-pressure regulation.
Part number:
0 261 545 ...
Bosch Automotive Aftermarket 2008 | 2009
Gasoline injection components | A37
Idle actuator
Systems:
LH, KE-Jetronic, KE-Motronic, Motronic
Purpose:
The idle actuator is installed in a bypass around the throttle valve and keeps the idling speed
steady under all conditions. Electrical actuation is effected by way of the engine control unit or
the idle controller on vehicles with idle-speed control. Extensive use is made of idle actuators
with hose connection. Add-on idle actuators are also employed in Motronic systems.
Part number:
0 280 140 5 ..
Idle controller (electronic control unit)
Systems:
All systems with idle-speed control
Purpose:
The idle controller regulates the rotary idle actuator and keeps the engine idling speed
absolutely steady. This avoids speed fluctuations when such loads as power steering,
air conditioner or automatic-transmission gearshift are activated.
Part number:
0 280 220 ...
Ignition coil
Purpose:
The operating principle of an ignition coil is based on Faraday’s law. Modern ignition coils
consist of iron cores made up of individual laminations and a plastic casing. To provide better
insulation of the windings, the casing is cast in epoxy resin or asphalt.
The pencil coil shown is one of the plastic ignition coils. It provides high spark energy (> 60 mJ)
and a long spark duration (≥ 1.8 ms) and thus ensures reliable, optimum combustion of the air/
fuel mixture under all engine operating conditions.
The ignition distributor, which runs at half the engine speed, assigns the high voltage (ignition
sparks) to the particular engine cylinder (firing order). A basic distinction is made between
three types:
Type 1:
Contact-type ignition distributor (ZV-K). This is used with conventional coil ignition and
breaker-triggered transistorized ignition (TZ-K). The ignition point is modified by way of speeddependent centrifugal or vacuum advance.
Part number:
0 231 ... ...
Type 2:
Ignition distributor with non-contacting sensor. This is used for transistorized ignition with
inductive or Hall sensor. The ignition point is modified by way of speed-dependent centrifugal
or vacuum advance. Also double-acting. Also with add-on trigger box.
Part number:
0 237 ... ...
Type 3:
Ignition distributor for electronic ignition. The ignition distributor contains only the high-voltage
section (cap, rotor).
Part number:
0 237 5.. ...,
BX: 0 986 237 ...
Injectors (electromagnetic)
Systems:
D, L, LH-Jetronic, Motronic
Purpose:
Each cylinder is assigned an injector. This is triggered electronically and injects the fuel upstream of the engine intake valves. In this process, the nozzle needle is lifted off its seat by
approx. 0.1 mm, allowing the fuel to emerge through a precision annular orifice. Even the
slightest contamination of the fuel or deposits can impair operation. The injectors are installed
by way of special holders in rubber mouldings. The thermal insulation thus achieved prevents
the formation of vapor bubbles and thus ensures good hot starting performance. To avoid
unmetered air and leakage, the O-rings are always to be replaced prior to renewed installation.
K-Jetronic valves open at a precisely defined fuel pressure (usually between 3.5 and 4.1 bar). In
this process the valve needle oscillates at a high frequency and the fuel is thoroughly atomized
even in the case of very small injected quantities. Each cylinder is assigned an injector, which
injects the fuel directly upstream of the engine intake valves. Atomization, opening pressure
and freedom from leaks have a major influence on emission characteristics, fuel consumption
and starting performance. To avoid unmetered air and leakage, the O-rings are always to be
replaced prior to installation.
Part number:
0 437 502 ...
Injectors EV10 (electromagnetic)
Systems:
Mono-Jetronic, Mono-Motronic
Purpose:
The injector EV10 is installed in the top section of the central injection unit. In this case
one injector supplies all the cylinders with fuel. The fuel is injected into the intake manifold
upstream of the throttle valve. As each ignition pulse also triggers an injection pulse, the EV10
is designed for very short switching times. During injection, the valve needle is lifted off its
seat by approx. 0.06 mm. Even the slightest fuel contamination can impair operation. Injectors
to suit each central injection unit can be found in the replacement parts range as of Page A 46.
The knock sensor converts vibration into electric signals. This enables the electronic control
unit to detect knocking combustion and to retard the ignition point to prevent engine damage.
In some cases several sensors are attached to the engine block for knock-control purposes.
Part number:
0 261 231 ...
2008 | 2009 Bosch Automotive Aftermarket
A40 | Gasoline injection components
Systems:
Lambda sensors
All
Purpose:
With older systems, the Lambda sensor is installed upstream of the catalytic converter. The
sensor measures the oxygen content of the exhaust gas and supplies the electronic control unit
with a voltage of approx. 800 mV for a rich mixture (λ 1). Modern systems require two Lambda
sensors – one upstream of the catalytic converter (= Lambda control sensor) and one downstream (= Lambda diagnosis sensor). Increasing use is being made of planar sensors. These
attain the necessary operating temperature after just a few seconds. To permit lean operation
of the engine, the sensor upstream of the catalytic converter must be capable of detecting a
lean mixture composition. Use is made of the latest broadband sensors for this purpose. These
play a crucial part in reducing emissions in the critical warm-up phase and thus ensure compliance with the EURO IV and ULEV (Ultra Low Emission Vehicle) emission specifications.
In contrast to conventional engine-management systems, with the EGAS Motronic the driver’s
acceleration input is no longer relayed to the throttle valve via a cable. Instead, the input is
detected using a pedal-travel sensor (also referred to as “electronic throttle control”) and
transmitted to the electronic control unit. The accelerator-pedal module is a pre-assembled unit
containing a vehicle-specific foot plate and the pedal-travel sensor. The Motronic ECU evaluates
the sensor signal and adjusts the electric motor-driven throttle valve (throttle device or EMS
positioner) taking into account other vehicle and engine data.
Part number:
0 205 001 ..., 0 280 752 ..., 0 280 755 ...
Pressure damper
Systems:
D, L, LH, K, KE-Jetronic, Motronic
Purpose:
The opening and closing of the injectors and the cyclic delivery action of fuel pumps cause
fluctuations in fuel pressure. These may be transmitted to other components and the body and
result in noise. The pressure damper smoothes the pressure peaks and is primarily designed
to reduce noise.
The pressure regulator is designed to maintain the system-specific difference in pressure between the fuel-supply line and the intake manifold at a constant level. The regulator is located
at the end of the fuel rail (in the top section of the central injection unit on Mono systems).
If the set pressure is exceeded, a diaphragm-actuated valve opens up the return pipe and the
depressurized surplus fuel flows back to the tank.
Note:
The pressure regulator at the central injection unit cannot be replaced separately. Bosch
supplies top sections with pre-assembled pressure regulator for this purpose (as of Page A 46).
Pressure sensors can be used for a variety of applications. Intake-manifold pressure sensors
measure the absolute pressure in the intake manifold. These sensors are either integrated into
the electronic control unit or fitted in the vicinity of the intake manifold in the form of externally
mounted sensors. Modern systems featuring on-board diagnosis are additionally fitted with
tank-pressure sensors. Modern DUO sensors combine pressure and temperature measurement.
Part number:
0 261 230 ...
Pressure sensors (altitude sensors)
Systems:
L, K, KE-Jetronic, Motronic
Purpose:
Pressure sensors detect the atmospheric pressure and relay this to the electronic control
unit in the form of a voltage signal. This prevents the over-enrichment and increased fuel
consumption normally associated with decreasing atmospheric pressure at high altitudes.
Part number:
0 280 101 ...
Pressure-control valve (DSV)
Purpose:
The pressure-control valve is positioned between the fuel rail (KVS-HD) and the low-pressure
end of the high-pressure pump (HDP-1). The pressure in the rail is set by varying the flow
cross-section. The surplus fuel conveyed is returned to the tank.
Part number: 0 261 540 ...
2008 | 2009 Bosch Automotive Aftermarket
A42 | Gasoline injection components
System:
Pulse valves
K-Jetronic (with Lambda control)
Purpose:
The pulse valve is installed in the connecting line between the fuel distributor’s lower chambers
and the fuel return. It is actuated by the Lambda controller and opened and closed in a defined
cycle. This enables the pressure in the lower chambers to be varied and the air/fuel mixture
regulated to λ = 1.
Part number:
0 280 150 300 – 0 280 150 349
Secondary-air pump (electrical)
System:
Motronic
Purpose:
Use is made of the electric secondary-air pump to comply with the stringent emission legislation
in the post-start phase. Fresh air injected directly downstream of the combustion chamber
causes afterburning of the hot exhaust gases and ensures more rapid warm-up of the catalytic
converter.
Part number:
0 580 000 ...
Shutoff valve
System:
Motronic
Purpose:
The shutoff valve is used in turbo engines to protect the turbocharger. The turbocharger
remains in operation on switching from turbo to overrun mode. Without a shutoff valve, the air
would impact against the closed throttle valve and flow back into the turbocharger. This return
flow of air could damage the turbocharger. To guard against this, the seat of the shutoff valve
is opened by the vacuum applied in the intake manifold in overrun mode with the throttle valve
closed. This enables the air conveyed by the continued operation of the turbocharger to be
routed via a bypass around the turbocharger and back into the intake manifold.
Part number:
0 280 142 100 – 0 280 142 150
Bosch Automotive Aftermarket 2008 | 2009
Gasoline injection components | A43
Thermo-time switch
Systems:
D, L, LH, K, KE-Jetronic, Motronic
Purpose:
The thermo-time switch limits the injection period of the cold-start valve as a function of time
and temperature. The switch consists of an electrically heated bimetallic element, which breaks
or makes a contact. Actuation is implemented by way of the ignition/starter switch.
Part number:
0 280 130 2..
Throttle-valve assembly (EMS positioner)
Systems:
Motronic with ETC
Purpose:
In engine management systems with ETC, the throttle valve is no longer adjusted directly
by way of a cable. The acceleration input is detected via a pedal-travel sensor and the sensor
signal is relayed to the electronic control unit. The signal received by the control unit is
converted into a control signal incorporating other vehicle and engine data. This control signal
opens or closes the throttle valve (driven by an electric motor) in line with the driver input
and driving situation.
Throttle-valve sensors are attached to the throttle-valve assembly or the central injection unit.
These sensors detect the position of the throttle valve and the angular velocity on opening and
closing. The angular velocity is an important signal for the electronic control unit to provide
compensation for load-change reactions and to prevent part-load bucking. Note: Throttle-valve
sensors at central injection units cannot be replaced. The entire bottom section of the injection
unit has to be renewed. The appropriate bottom section can be found in the replacement parts
range as of Page A 46.
Part number:
0 261 211 ..., 0 280 122 ...
2008 | 2009 Bosch Automotive Aftermarket
A44 | Gasoline injection components
Systems:
Throttle-valve switch
D, L, LH, KE-Jetronic, Motronic
Purpose:
The throttle-valve switch is attached to the throttle-valve assembly. The switch is actuated by
the throttle-valve shaft. One contact is made in each case in the “idle” and “full load” positions.
These signals enable the electronic control unit to activate the idle-increase function with a
cold engine and enrichment at full load.
Part number:
0 280 120 000 – 0 280 120 499
Vacuum limiter
Systems:
L, LH, K, KE-Jetronic, Motronic
Purpose:
The vacuum limiter restricts the difference in pressures upstream and downstream of the
throttle valve. Additional air flows into the intake manifold if the set pressure difference is
exceeded.
Part number:
0 280 160 1.., 0 280 160 3..
Warm-up regulator
System:
K-Jetronic
Purpose:
Warm-up regulators comprise a spring-controlled diaphragm valve and an electrically heated
bimetallic spring. As a function of engine temperature and time, the control pressure in the fuel
distributor is reduced and more fuel is injected into the engine.
Part number:
0 438 140 ...
Bosch Automotive Aftermarket 2008 | 2009
A45
2008 | 2009 Bosch Automotive Aftermarket
A46 |Central injection unit (ZEE)
Central injection unit (ZEE)
Mono-Jetronic replacement-parts range
Top-section parts set
Top section with pre-assembled pressure regulator
Note:
The pressure regulator cannot be replaced separately.
Bottom-section parts set
Bottom section with throttle valve and throttle-valve potentiometer
Note:
The throttle-valve potentiometer cannot be replaced separately.
Injector EV10
Injector complete with O-ring
1
2
3
Throttle-valve actuator
Idle actuator
Seal
Seal between top and bottom section
Connector
Connector for injector with integrated intake-air temperature sensor
For the repair of Jetronic/Motronic systems and wiring harnesses,
Bosch supplies a case containing an assortment of the most
important parts such as: Connector housings and couplings,
plug-in contacts with tinned or gold-plated contact surface, O-rings
for single and multipoint systems, non-return valves for electric
fuel pumps, protective caps, plugs.
Advantages
Less expensive than purchasing individual components
All parts to original-equipment standard
Expert repair of wiring harnesses and components through the
use of genuine parts
Good service availability and short repair times thanks to rapid
access to replacement parts without time-consuming searching
and ordering
Clear-cut, practical arrangement of parts in a case
Also ideal for mobile applications such as breakdown services
Part number1 987 280 003
Bosch Automotive Aftermarket 2008 | 2009
Contents
Parts-assortment case | A 51
Compart-
Name/designationDimensions in mmApplication (note)
ment
1Blade terminal2.8For wire cross-section 0.5...1.0 mm
2Blade receptacle2.8For wire cross-section 0.5...1.0 mm
3Blade receptacle2.8For wire cross-section 0.5...1.0 mm
4Blade receptacle2.8For wire cross-section 0.5...1.0 mm
5Blade receptacle2.8For wire cross-section 1.0...2.5 mm
2
2
2
2
2
20
20
20
20
20
6Blade receptacle2.8For wire cross-section 1.5...2.5 mm
7Blade receptacle 2.8For wire cross-section 0.35 mm
8Blade receptacle2.8For wire cross-section 0.35 mm
9Blade receptacle2.8For wire cross-section 0.5...1.0 mm
10Blade-receptacle parts set 2.8For wire cross-section 0.5...1.0 mm
2
2
2
2
2
20
20
20
20
4
11Cable glandIndividual wire seal for 0.35...1.0 mm
12Cable glandIndividual wire seal for 1.5...2.5 mm
16O-ring5.0 x 2.5For pressure regulator DR1 and DR210
17O-ring7.52 x 3.53For pressure regulator DR4 and injectors10
18O-ring20 x 2.5For pressure regulator DR1 and DR210
19Flat seal (Cu) A 8 x 11.5For electric fuel pump100
20Flat seal (Cu) A 10 x 13.5For electric fuel pump100
21Flat seal (Cu) A 14 x 18For electric fuel pump100
22Flat seal (Cu) A 12 x 17For fuel distributor (connection fitting)10
23Connection fitting with
For fuel distributor1
strainer
24CapFor fuel distributor20
25O-ring 25.5 x 2For fuel distributor K/KE-Jetronic10
26O-ring 36.3 x 1.78For fuel distributor K/KE-Jetronic10
27O-ring 29.5 x 1.5For fuel distributor K/KE-Jetronic10
28Sealing ring6.2 x 8.2 x 2.5For fuel distributor KE-Jetronic10
29Sealing ring 9.2 x 11.2 x 2.5 For fuel distributor KE-Jetronic10
30Sealing plugAnti-tamper device for K/KE-Jetronic20
31Sealing plugAnti-tamper device for K/KE-Jetronic
50
(Mercedes-Benz)
32O-ring 6.0 x 5.2For injectors K/KE-Jetronic (top)10
33O-ring 7.6 x 2.1For injectors5
34O-ring 3.6 x 7.8For injectors10
35O-ring 7.8 x 4.6For injectors5
36O-ring 9.8 x 1.4For injectors K/KE-Jetronic (bottom)10
37O-ring 13.0 x 2.5For injectors5
38O-ring 18.55 x 3.5For injectors5
39Rubber ring 7.8 x 13.8 x 4.5 For injectors10
41Coupler plug (2-PIN)With individual wire seal3
42Connector housing (2-PIN)With individual wire seal (attached to body)3
43Connector housing (2-PIN)With individual wire seal3
44Protective cap (2-PIN)ShortFor connector housing and coupler plug 3
44Protective cap (2-PIN)LongFor connector housing and coupler plug 3
45Protective cap (2-PIN)For connector housing and coupler plug2
46Protective cap (2-PIN)For connector housing and coupler plug2
47Coupler plug (3-PIN)With individual wire seal3
48Connector housing (3-PIN)With individual wire seal3
49Connector housing (3-PIN)With individual wire seal (attached to body)3
50Protective cap (3-PIN)For connector housing and coupler plug3
51Protective cap (3-PIN)For connector housing and coupler plug
59Non-return-valve parts setFor electric fuel pump1
59Non-return-valve parts setFor electric fuel pump1
59Non-return-valve parts setFor electric fuel pump1
59Non-return-valve parts setFor electric fuel pump1
59Non-return-valve parts setFor electric fuel pump1
59Non-return-valve parts setFor electric fuel pump1
59Non-return-valve parts setFor electric fuel pump1
60O-ring parts setFor injectors (central injection unit)1
60O-ring parts setFor injectors (central injection unit)3
60O-ring parts setFor injectors (central injection unit)2
61Protective cap (2-PIN)For compact connector (90° version)3
62Protective cap (3/4-PIN)For compact connector (90° version)3
Name/designationDimensions in mmApplication (note)