Mercedes-Benz 350 SDL TURBO 1991, 350 SD TURBO 1991 Owner's Manual
Mercedes-Benz
What You Should Know at
the Gas Station
See last page
MERCEDES-BENZ
ROADSIDE ASSISTANCE
Drive Sensibly - Save Fuel
Fuel consumption, to a great extent,
depends on driving habits and operat
ing conditions.
To save fuel you should:
• keep tires at the recommended
inflation pressures,
• remove unnecessary loads,
• remove ski racks or roof-mounted
luggage racks when not in use,
• allow engine to warm up under low
load use,
• avoid frequent acceleration and
deceleration,
• have all maintenance work
performed at regular intervals by
an authorized MERCEDES-BENZ
dealer.
Fuel consumption is also increased
by driving in cold weather, in
stop-and-go traffic, on short trips
and in hilly country.
1- 800- 222-0100
(U.S.A. only)
Mercedes-Benz
Owner’s Manual
1991
350 SD TURBO
350 SDL TURBO
Kindly observe the following in your own best interests:
We recommend using MERCEDES-BENZ original parts as
well as conversion parts and accessories explicitly
approved by us for your vehicle model.
We have subjected these parts to a special test in which
their reliability, safety and their special suitability for
MERCEDES-BENZ vehicles have been determined.
We are unable to make an assessment for other products
and therefore cannot be held responsible for them, even if
in individual cases an official approval or authorization by
governmental or approval agencies should exist.
MERCEDES-BENZ original parts as well as conversion
parts and accessories approved by us are available at your
MERCEDES-BENZ service station where you will receive
comprehensive information, also on permissible technical
modifications, and where expert installation will be per
formed.
Printed in Germ an y
We reserve the right to modify the technical details o f the vehicle as given in the data and
illustrations o f th is O wner's M anual (s.e.e.o.). Reprinting, tran slatio n and copying, even of
excerpts, is not permitte d without our prior a uthorization in writing.
VKT/07.05 .90 RS/4 PVL
Our company and staff congratulate you on the purchase of
your new MERCEDES-BENZ.
Your selection of our product is a demonstration of your
trust in our company name. Further, it exemplified your
desire to own an automobile that will be as easy as possible
to operate and provide years of service.
Your MERCEDES-BENZ represents the efforts of many
skilled engineers and craftsmen. To ensure your pleasure
of ownership, we ask you to make a small investment of
your time:
• Please read this manual carefully before putting it aside.
• Please abide by the recommendations contained in this
manual. They are designed to acquaint you with the
operation of your MERCEDES-BENZ.
We extend our best wishes for many miles of safe, pleasur
able driving.
Mercedes-Benz Aktiengesellschaft
3
Introduction
This Owner’s Manual contains a great deal of useful
information. We urge you to read it carefully and familiar
ize yourself with the vehicle before driving.
For your own safety and longer service life of the vehicle,
we urge you to follow the instructions and warnings.
Ignoring them could result in damage to the vehicle or
personal injury.
Your vehicle may have some or all of the equipment
described. Therefore, you may find explanations of
equipment not installed in your vehicle. If you have any
questions about the operation of any equipment, your
authorized M ERCEDES -BENZ dealer will be glad to
dem onstrate the proper procedures.
Owner’s Service and Warranty Policy
The Owner’s Service and Warranty Policy Booklet
contains detailed information about the warranties
covering your M ERCEDES-BENZ, including:
• New Car Limited W arranty
• Emission System Warranty
• Emission Performance Warranty
• California Emission Control System W arranty
(California Only)
Maintenance
The Maintenance Booklet describes all the necessary
maintenance w ork which should be performed at regular
intervals.
Always have the Maintenance Booklet with you when you
take the vehicle to your authorized MERC EDES-BENZ
dealer for service. The service advisor will record each
service in the booklet for you.
Roadside Assistance
The M ercedes-Benz Roadside Assistance Program pro
vides factory trained technical help in the event of a break
down. Calls to the toll-free Roadside Assistance num ber:
1- 800- 222-0100
will be answered by M ercedes-Benz Customer Assist
ance Representatives 24 hours a day, 365 days a year.
On-site service calls by a local Mercedes-Benz Road
side Assistance technician are available weekdays from
5:00 PM till midnight, weekends and legal holidays from
8:00 AM till midnight.
For additional inform ation refer to the Mercedes-Benz
Roadside Assistance Program brochure in your glove box
or lockable storage compartment.
4
Change of Address or Ownership
If you change your address, be sure to send in the
“Change of Address N otice” found in the Owner’s Service
and Warranty Policy Booklet. It is in your own interest
that we can contact you should the need arise.
If you sell your Mercedes, please leave all owner’s litera
ture with the vehicle to make it available to the next
owner.
If you bought this vehicle used, be sure to send in the
“Notice of Purchase of Used Car” found in the Owner’s
Service and Warranty Policy Booklet.
Operating Your Vehicle Outside the U.S.A. or Canada
If you plan to operate your vehicle in foreign countries,
please be aware that service facilities or replacement
parts may not be readily available:
Certain Mercedes-Benz m odels are available for delivery
in Europe under our European Delivery Program. For
details, consult your authorized MERCEDES-BENZ
dealer or w rite to:
Mercedes-Benz of North America, Inc.
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645
In Canada write to:
Mercedes-Benz Canada, Inc.
European Delivery Department
849 Eglinton Avenue East
Toronto, Ontario M4G 2L5
5
Optional equipment is also described in this manual, including
operating instructions wherever necessary. Since they are
special-order items, the descriptions and illustrations herein
may vary slightly from the actual equipment of your vehicle.
If there are any equipment details that are not shown or de
scribed in this Owner’s Manual, your authorized MERCEDES-
BENZ dealer will be glad to inform you of correct care and
operating procedures.
The Owner’s Manual and Maintenance Booklet are important
documents and should be kept with the vehicle.
6
Instruments and Controls, Starting the Engine
Driving Instructions, Service and Maintenance
Operation
Driving
Practical Hints
Technical Data
Fuels, Coolants, Lubricants, etc.
Consumer Information
Index
Check Regularly and
Before a Long Trip
See page 116
The First 1500 km (1000 Miles)
The more cautiously you treat your
vehicle during the break-in period, the
more satisfied you will be with its per
form ance later on. Therefore, drive
your vehicle during the first 1500 km
(1000 miles) at moderate vehicle and
engine speeds.
During this period, avoid heavy loads
(full throttle driving) and high RPM
(no more than 2A of maximum permis
sible speed in each gear as indicated
on the speedometer).
Avoid accelerating by kickdown. It is
not recommended to brake the vehi
cle by manually shifting to a lower
gear. We recommend to select posi
tions “3” or “2” only at moderate
speeds (for hill driving).
After 1500 km (1000 miles) speeds
may gradually be increased to the
permissible maximum.
8
Instruments and Controls, Starting the Engine
Driving Instructions, Service and Maintenance
Instruments and Controls 10
Instrument Cluster 12
Indicator Lam p Symbols 13
Starting and Turning Off the
Engine 14
Driving Instructions 15
MERCEDES-BENZ
Maintenance System 18
9
Instruments and Controls
For more detailed descriptions see specified pages.
1 Air volume control for side air outlets (page 20)
2 Side air outlets (page 20)
3 Adjustable air outlets (page 20)
4 Parking brake release (page 54)
5 Hood lock release (page 70)
6 Parking brake pedal (page 54)
7 Combination switch (page 46)
8 Exterior lamp switch (page 45)
9 Cruise control (page 58)
10 Instrument cluster (page 12)
11 Horn
Airbag (page 39)
12 Steering lock with preglow/starter switch (page 44)
13 Air volume control lever for center and side air
outlets (page 20)
14 Rear window defroster switch (page 50)
15 Air recirculation switch (page 20)
16 Hazard warning flasher switch
17 Rear passenger com partment lamp switch
(page 49)
18 Automatic climate control (page 20)
19 Radio
20 Ashtray with lighter (pages 49, 93)
21 Left front seat heater switch (page 32)
22 Switch for rear window sun shade
23 Right front seat heater switch (page 32)
24 Left power window switch group (page 51)
25 Adjusting switch for exterior mirror on front
passenger side (page 47)
26 Loudspeaker front to rear fader control
27 Right power window switch group (page 51)
28 Glove box (illuminated in steering lock posi
tions 1 or 2) is not installed in vehicles equip
ped with a front passenger airbag.
10
I
Instruments and Controls
Ins trument Clu ster 7
1 Knob for instrum ent lamps and trip odometer.
Rotate knob: To vary intensity of instrument lamps.
Depress knob: To reset trip odometer.
Coolant tem perature gauge. See page 61
2
Fuel gauge with reserve w arning lam p (yellow).
3
See page 61
4 Oil pressure gauge (bar). See page 60
Turn signal indicator lamp, left (green)
5
Speedometer
6
12
ASD function indicator lamp (yellow). See page 65
Main odometer
8
.
ft
I rip odometer
y
Outside temperature indicator. See page 62
10
Turn signal indicator lamp, right (green)
11
Electric clock
12
Tachom eter
13
Knob for clock adjustment
14
(press in and rotate for adjustments)
Indicator Lamp Symbols
Function Indicator Lamp
Engine oil level low.
See page 60
High beam
m
O T
Warning Lamps
(should go out with the engine running unless)
E3
BRAKE
(®)
a
Preglow. See page 14
Battery not being charged.
See page 60
Brake fluid low (except Canada)
Parking brake engaged.
See pages 54, 63
Brake fluid low (Canada only).
Parking brake engaged.
See pages 54, 63
Front brake pads worn down.
See page 63
Coolant level low.
See page 62
Fluid level for windshield and
headlamp washer system low.
See page 62
Exterior lamp failure.
See page 61
ABS malfunction.
See page 64
SRS malfunction.
See page 39
ASD malfunction.
See page 65
Instrument C luster
Indicator Lamp Symbols
13
Starting and Turning Off the Engine
Before Starting
Engage parking brake and move the
selector lever to position “P”.
Cold Engine
Turn key to steering lock position 2.
Charge indicator and preglow indica
tor lamp should come on. The preglow
process starts. W hen the preglow
indicator lamp goes out, the engine is
ready for starting.
Ambient temperatures
above 0°C (+32°F):
Turn key in steering lock clockwise to
the stop. Do not depress accelerator.
Release key only when the engine is
firing regularly.
Ambient temperatures
below 0°C (+32°F):
Depress accelerator to the floor. Turn
key in steering lock clockwise to the
stop. Release key only when the
engine is firing regularly and back off
accelerator slowly.
Do not interrupt the starting process. If
the engine is very cold, it is possible
that it will fail to start on subsequent
attempts.
At am bient tem peratures below
-1 8°C (0°F), depress accelerator
three times prior to starting.
Hot Engine
Turn key in steering lock clockw ise to
the stop and start engine im m ediately
without depressing the accelerator.
Turning off
Turn the key in the steering lock to
position 0 only when the vehicle has
stopped moving.
The key can only be removed with the
selector lever in position “P”.
Should the engine continue to operate
with the key in steering lock position 0,
refer to page 74.
If the coolant temperature is very high
(e.g. after hard driving on mountain
roads), do not shut off the engine
immediately, but allow it to run for
1-2 minutes at increased idle speed
with selector lever in position “P”.
Important!
Due to the installed starter non-repeat
feature, the key must be turned
completely to the left before attempt
ing to start the engine again.
Observe the oil pressure gauge
immediately after starting the engine.
In a very cold engine the oil pressure
will rise slowly. Do not speed up the
engine before pressure is registered
on the pressure gauge.
The battery charge indicator lamp
should go out as soon as the engine
has started.
If the preglow indicator lamp fails to
light up, or lights up while driving, the
preglow system is defective and
should be repaired at your authorized
MERCEDES-B ENZ dealer at the
earliest possible date.
The engine is equipped with a block
heater to provide reliable starting at
temperatures below -18°C (0°F).
Refer to page 67.
14
Driving Instructions
Power assistance
When the engine is not running, the
brake and steering systems are
without power assistance. Under
these circumstances, a m uch greater
effort is necessary to stop or steer the
vehicle.
Brakes
Caution!
When driving down long and steep
grades, relieve the load on the brakes
by shifting into “3” or “2”. This helps
prevent overheating of the brakes and
reduces brake pad wear. Do not exceed
engine speed limits (see page 57).
After hard braking it is advisable to
drive on for some time so the air
stream will cool down the brakes
faster.
Warning!
After driving in heavy rain for
some time without applying the
brakes or through w ater deep
enough to wet brake com ponents,
the first braking action may be
somewhat reduced and increased
pedal pressure may be necessary.
Be sure to maintain a safe distan
ce from vehicles in front.
The condition of the parking brake
system is checked each tim e the car
is in the shop for the required mainte
nance.
Between maintenance checks, it is a
good practice to apply the parking
brake once or tw ice w hile driving at
approximately 50 km/h (30 mph) on a
dry straight road. Apply brake lightly
until a slight drag on the wheels is felt.
Keep applying brake for about
10 seconds while pulling the release
handle out before releasing the park
ing brake completely. This practice
will keep the parking brake at m axi
mum efficiency.
Warning!
The stop lamps will not come on
when applying the parking brake
only. Perform the procedure in
the previous paragraph only
when the road is clear of other
traffic.
Resting your foot on the brake
pedal w ill cause excessive and
premature w ear of the brake
pads.
It can also result in the brakes
overheating thereby significantly
reducing their effectiveness. It
may not be possible to stop the
car in sufficient time to avoid an
accident.
All checks and maintenance work on
the brake system should be carried
out by an authorized MERCEDES-
BENZ dealer.
If the parking brake is released and
the brake warning lamp in the instru
ment cluster stays on, the brake fluid
level in the reservoir is too low.
Brake pad wear or a leak in the
system may be the reason for low
brake fluid in the reservoir.
Have the brake system inspected at
an authorized MERCEDES-BENZ
dealer im mediately.
Install only brake pads and brake fluid
recom m ended by MERCEDES-BENZ.
Warning!
If other than recommended brake
pads are installed, the braking
properties of th e vehicle can be
affected to an extent that the
safety is substantially impaired.
I
Driving Instructions
Starting and Turning Off the Engine
15
Depending upon the weather
and/or road surface (conditions),
the traction varies widely.
Specified tire pressures must be
maintained. This applies particularly if
the tires are subjected to high loads
(e.g. high speeds, heavy loads, high
ambient temperatures).
Tire traction
The safe speed on a wet, snow
covered or icy road is always lower
than on a dry road.
You should pay particular attention to
the condition of the road as soon as
the prevailing temperatures fall close
to the freezing point.
Tires
Tread wear indicators (TWI) are
required by law. These indicators are
located in six places on the tread cir
cumference and become visible at a
depth of approx. 2 mm (Vie in), at
which point the tire is considered worn
and should be replaced.
The tread wear indicator appears as a
solid band across the tread.
Warning!
Do not allow your tires to w ear
down too far. With less than 3 mm
(1/s in) of tread, the adhesion
properties on a wet road are
sharply reduced.
16
Warning!
Do not drive with a flat tire. A flat
tire affects the ability to steer or
brake the vehicle. You may lose
control of the car. C ontinued
driving with a flat tire or driving
at high speed with a flat tire will
cause excessive heat build-up
and possible a fire, or tire blow
out.
Aquaplaning
Depending on the depth of the water
layer on the road, aquaplaning may
occur, even at low speeds and with
new tires. Avoid track grooves in the
road and apply brakes cautiously in
the rain.
Warning!
If ice has formed on the road, tire
traction will be substantially
reduced. Under such weather
conditions, drive, steer and brake
with extreme caution.
We recommend M + S radial-ply tires
for the winter season for all four
wheels to insure normal balanced
handling characteristics. On packed
snow, they can reduce your stopping
distance as compared with summer
tires. Stopping distance, however, is
still considerably greater than when
the road is wet or dry.
Parking
Warning!
To reduce the risk of personal
injury as a result of vehicle m ove
ment, before turning off the
engine and leaving the vehicle
always:
1. Keep foot on brake pedal.
2. Firm ly depress parking brake
pedal.
3. Move the selector lever to
position “P”.
4. Slowly release brake pedal.
5. Turn front wheels towards the
road curb.
6. Turn the key to steering lock
position 0 and remove.
Important!
It is advisable to set the parking brake
whenever parking or leaving the
vehicle. In addition, move selector
lever to position “P”. When parking on
hills, always apply the parking brake.
Winter Driving Instructions
The most important rule for slippery or
icy roads is to drive sensibly and to
avoid abrupt acceleration, braking and
steering action. Do not use the cruise
control system under such conditions.
When the vehicle is in danger of
skidding, move selector lever to
position “N”. Try to keep the vehicle
under control by means of corrective
steering action.
Road salts and chemicals can adver
sely affect braking efficiency. Increa
sed pedal force may become neces
sary to produce the normal brake
effect. We therefore recommend
depressing the brake pedal repeatedly
when traveling on saltstrew n roads at
length. This can bring road salt
impaired braking efficiency back to
normal. A prerequisite is, however,
that this is possible without endange
ring other drivers on the road.
If the vehicle is parked after being
driven on salt treated roads, the
braking efficiency should be tested as
soon as possible after driving is
resumed while observing the safety
rules in the previous paragraph.
Warning!
If the vehicle becom es stuck in
snow, m ake sure that snow is
kept clear of the exhaust pipe and
from around the vehicle. Otherwi
se, deadly carbon mon oxide (CO)
gases may enter vehicle interior
resulting in unconsciou sness and
death.
To assure sufficient fresh air ven
tilation, open a window slightly
on the side of the car that is out
of the wind.
I
Driving Instructions
17
MERCEDES-BENZ
Maintenance System
A maintenance booklet is included
with your car, listing all the mainte
nance jobs that must be carried out
after the following mileages:
Routine Maintenance
Inspection at 1300 - 1600 km
(80 0-10 0 0 miles)
Lubrication Service every
8000 km (5000 miles)
Maintenance Service every
24 000 km (15 000 miles)
Additional Work every
48 000 km (30 000 miles)
For additional details refer to the
Maintenance Booklet.
In the case of low mileage operation,
the M aintenance Service must be
carried out at least once every
2 years.
Engine Oil and Filter Change
Required every 8000 km (5000 miles),
or at least once a year.
Under severe operating conditions or
if diesel fuels with high sulphur
content (in excess of 0.5 % by weight)
are used, the oil and filter should be
changed every 4000 km (2500 miles).
For engine oil recommendations, see
page 102.
Severe Operating Conditions
Under severe operating conditions or
heavy use, it may be necessary to
carry out prescribed m aintenance jobs
at shorter intervals, for example:
Engine: Oil change with filter change
every 4000 km (2500 miles).
Automatic transmission: Fluid change
without filter change every 24 000 km
(15 000 miles).
Tires: Inspect every
12 000 km (7 500 miles).
Air filter: Clean or replace element
every 24 000 km (15 000 miles).
Note:
Severe operating conditions or heavy
use include: predominant city or short
distance driving, frequent mountain
driving, poor roads, dusty or muddy
conditions,etc..
Special Maintenance Measures
Brake fluid should be replaced
annually, preferably in the spring.
It is recommended to use only brake
fluid approved by MERCEDES-BENZ.
Do not mix different types of brake
fluids.
Have the engine coolant (water/
anticorrosion/antifreeze mixture)
replaced every three years (see
"Fuels, Coolants, Lubricants, etc.”).
Maintenance Vouchers
Your authorized MERCEDES-BENZ
dealer will certify in the maintenance
booklet that all lubrication and m ainte
nance services have been carried out
at the correct intervals.
18
Operation
Automatic Climate Control
Car Keys
Opening the Doors
Locking and Unlocking of Doors
Central Locking System
Anti-Theft Alarm System
Power Seats, Front
Orthopedic Seat Backrest
Adjusting Telescopic
Steering Column
Arm Rest (Front Seats)
Arm Rest (Rear Bench Seat)
Head Restraints, Rear
Heated Seats
Power Seats, Rear
Individual Rear Seats
20
Seat Belts and Supplemental
25 Restraint System (SRS)
26 Steering Lock
26 Exterior Lamp Switch
27
Com bination Switch
28
Exterior Rear View Mirrors
28 Inside Rear View Mirror
30
Sun Visors
Sliding Roof with
30
31 Interior Lamps
31 Lighter
31
32
33 Power Windows
33
Rear Pop-Up Feature
Lockable Storage Compartment
Rear Window Defroster
Shelf below Rear W indow
34
44
45
46
47
47
48
48
49
49
50
50
51
51
I
19
Automatic C limate Control
The engine must be running for the
climate control system to operate.
1 Temperature selector
2 Pushbuttons for function selection
Defrost
o
Bi-Level
a
Normal setting
B
EC (Economy)
i
Off (air supply off)
0
3 Fan control buttons
0 M aximum fan speed
'P f g Autom atic fan speed
!■ ■ control
m Minimum fan speed
4 Air recirculation switch
5 Volume control for adjustable air
outlets (8) right and left
6 Volume control for adjustable air
outlets (7)
7, 8 Adjustable air outlets
9 Side air outlets
10 Volume control for side air outlets
(9) right and left
Heating, cooling, and air distribution
within the vehicle’s interior will be
automatically controlled. This is
accom plished with the temperature
selector (1), the pushbuttons (2) and
the fan control buttons (3).
The adjustable air outlets (7) and (8)
can be variably opened and closed, or
moved to direct the flow of air as
desired. The outlets (7) are opened
and closed with slide lever (6), and
outlets (8) with slide levers (5).
Move slide levers (5) and (6) towards
the left to open, towards the right to
close.
The air flow from the outlets (9) may
be increased by rotating the control
(10) up, and reduced by rotating down.
With the exterior lamps turned on
(except standing lamps), the symbols
on all buttons light up. Each button
shines brighter when depressed.
Notes:
The automatic climate control oper
ates properly only if all windows and
the sliding roof are kept closed. Air
outlets (7), (8) and (9) must not all be
closed at the same time.
The air conditioner rem oves consi
derable moisture from the air during
operation. It is normal, for water to
drip onto the ground through openings
in the underbody.
20
The adjustable air outlet in the rear
passenger compartm ent console
provides a variable flow of fresh
outside air or cooled air. The air flow is
increased by sliding the lever to the
left and decreased by sliding the lever
to the right.
Tem perature Selection
The desired interior tem perature
can be selected by rotating the
temperature selector. The
selected temperature is reached as
quickly as possible and maintained. A
basic setting of 72°F (22°C) is re
commended.
Air R ecirculation
Press symbol side of switch = the
air recirculation mode is engag
E
ed. The indicator lamp in the
switch lights up.
This mode can be selected to prevent
annoying odors or dust from entering
the car's interior.
At high outside temperatures, the
system automatically engages the
recirculated air mode and thereby
increases the cooling capacity per
formance.
The recirculated air mode will be
autom atically switched off after
approxim ately 30 minutes of operation
at outside temperatures above
approxim ately 7°C (45°F) and after
approximately 5 minutes at outside
temperatures below approximately
7°C (45°F).
If the windows should fog up from the
inside, switch from recirculated air
back to fresh air by pressing the lower
half of the air recirculation switch (the
indicator lamp in the switch goes out).
Note:
It is not possible to switch to recircu
lated air if button 0 o r fjjj is de
pressed.
^ Normal setting - Cooling
^ Economy setting - Ventilation
Normal setting - Heating
Economy setting - Heating
Function Setting
^ Normal setting
The system automatically cools or heats depending on
the outside tem perature and the selected interior tem
perature.
• In the cooling mode, air is directed only to the
adjustable air outlets (7), (8) and (9).
• In the heating mode, warm air is primarily directed to
the foot area and additionally to the ducts in the front
doors.
In the heating mode, air will also be periodically
emitted from the adjustable air outlets (7).
Enough air is supplied to the windshield and to the
side windows to keep the glass free of fog in normal
weather conditions.
At low outside tem peratures, fan operation does not
start until the engine coolant has warmed up.
'^ j EC (ECONOMY) = Economical setting
The function of this setting corresponds to the “Normal”
setting, however, because the air conditioning compres
sor will not engage (fuel savings), it is not possible to air
condition in this setting.
22
* t
, ^.ffn fe || (J\ fefia |
Bi-Level ventilation - Cooling
iji
aa a bq
E c n r r a §
S S I
9^ j .
a H"!
----------------------------
8 -
| - _ - - ^
r #
148 2
This setting is used if the inside of the windshield begins
to fog up, ice up or when wet snow is falling. As soon as
the windshield has cleared, reset to gj or ; g [.
In the heating mode, warm air is supplied to the wind
shield, foot area, air outlets (8) and (9), and to the ducts
in the front doors. Additionally, air may be emitted peri
odically from outlets (7), depending on the interior tem
perature.
In the cooling mode, cool air is supplied to the wind
shield, foot area, front door ducts, and air outlets (7), (8)
and (9).
Note:
In warm, humid climates, prolonged use of this setting
may create condensation on the outside of the wind
shield, directly above the defroster ducts.
^ Defrost
The maximum am ount of heated air is directed to the
windshield and adjustable air outlets (9) independent of
the positions of the temperature selector wheel and fan
control buttons.
a oft
The fresh air supply to the car interior is shut off. While
driving, use this setting only temporarily.
24
Car Keys
Included with your vehicle are two
master keys, one valet key and one
flat (master) key.
Master Key - square head - fits all
locks on the car. Arms/disarms the
anti-theft alarm system.
Valet Key - round head - fits only the
door locks and the steering lock.
Arms/disarms the anti-theft alarm
system . The valet key will not fit the
trunk, glove box or console storage
compartm ent locks. This key should
be used whenever the car is left with
an attendant. Be sure to lock glove
box or console storage compartment
and trunk with the master key.
Flat Key
The flat key fits all vehicle
locks. Arms/disarms the
anti-theft alarm system. We
recommend that you carry
the flat key with you and
f
keep it in a safe place so
that it is always handy.
Never leave the flat key in
the vehicle.
Obtaining Replacem ent Keys
Your vehicle is equipped with a theft
deterrent locking system requiring a
special key manufacturing process.
For security reasons, replacement
keys can only be obtained via your
authorized MERCEDES-BENZ dealer.
Warning!
When leaving the vehicle always
remove the key from the steering
lock. Do not leave children
unattended in the vehicle. Unsu
pervised use of vehicle equip
ment m ay cause serious person
al injury.
When the rear door lock buttons are
down, the rear doors cannot be
opened from the outside or the inside,
unless the door lock buttons are first
pulled up.
The driver’s door can be locked only if
it is closed and the door latch has
properly engaged.
Opening the Doors
From outside: pull handle (1) out
wards.
From inside: pull handle (4) in trim
panel.
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Locking and Unlocking of Doors
From the outside: turn key.
From the inside: actuate door lock
button.
2 Unlocking
3 Locking
Central Locking System
The entire vehicle may be locked or
unlocked with the central locking
system by:
• Using the master or valet key in
either front door.
• Using the master key in the trunk
lock.
• Pushing down or pulling up the in
terior door lock button at either
front door.
The central locking system locks or
unlocks all doors, trunk lid and fuel
filler flap simultaneously.
Doors
When you lock the car, all door lock
buttons should move down. If any one
stays up, the respective door is not
properly closed. You should then
unlock the car, open and reclose this
door, and lock the car again.
The central locking system can be
engaged from the driver’s door lock
button, provided the door is com plete
ly closed. It can also be engaged from
the front passenger door if the ignition
key is removed, or the key is inserted
in the steering lock without having
been turned (key in position 0).
If the car has been locked from the
outside, the anti-theft alarm will com e
on if a door is opened from the inside.
Trunk
To unlock the trunk with the central
locking system, turn the master key in
the trunk lock com pletely to the left
and let it return to the vertical position.
Push in trunk lock button and open
the trunk. To lock the trunk, turn the
master key completely to the right and
let it return to the vertical position.
The trunk can remain locked while the
central locking system is unlocked
(e.g. while driving or when leaving the
car in a situation where it must be
driven using the valet key, but you
wish the trunk to remain locked at
parking lots, workshops, etc.). Turn
the master key completely to the right
and pull it out in the horizontal posi
tion. Now the trunk can only be
unlocked with the m aster key by
turning it back completely to the left.
Important!
If the trunk is unlocked with the
master key, the doors and fuel filler
flap will also be unlocked. After
closing the trunk, the central locking
system must again be engaged using
the key to relock the doors and fuel
filler flap.
Note:
If the fuel filler flap cannot be opened,
refer to “Manual Release of Fuel Filler
Flap” (page 86).
Anti-Theft Alarm System
The anti-theft alarm can be armed or
disarmed with the m aster key, valet
key or flat key by locking or unlocking
either front door or the trunk.
Operation
Once the alarm system has been
armed, the exterior vehicle lamps will
flash and the horn will sound intermit
tently when someone:
• opens a door,
• opens the trunk,
• opens the hood,
• removes the radio,
• switches on or bridges the ignition
circuit,
• steps on the brake pedal.
The alarm will last approximately
150 seconds in the form of blinking
exterior lamps. At the same time an
additional horn will sound intermittent
ly for 60 seconds, pause for 30 seconds,
and repeat for another 60 seconds.
The alarm will stay on even if the
activating elem ent (a door, for exam
ple) is immediately closed.
Note:
If the radio is removed from its
mounting when the anti-theft alarm is
armed, the radio will autom atically be
rendered inoperative! (This is indi
cated by a dashed line across the
display.)
Do not give the master key to an
unauthorized person. W e recommend
that you carry the flat key safely with
you so that it is always handy. This
key has the same function as the
master key.
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Power Seats, Front
The switches are located in each front
door.
Turn key in steering lock to position 1
or 2 (with the driver’s or front passen
ger’s door opened, the power seats
can also be operated with the key
removed or in steering lock position0).
Seat and head restraint adjustment:
A Seat cushion adjustment.
B Seatback adjustment.
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