Mercedes-Benz 560 SL 107 1988 Owner's Manual

What You Should Know
at the Gas Station

See last page

Drive Sensibly — Save Fuel

Fuel consumption, to a great extent,
depends on driving habits and oper
ating 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 per
formed 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.

Owner's Manual

560 SL

Model 107

1988

Printed in Germany

We reserve the right to modify the te chnical details of th e
veh ic le as given in the d ata and illu strations of this O w ner’s
Man ual (s.e.e.o.). Reprinting, tran slation and copying, eve n of
ex cerpts, is n ot p erm itted with out our prior a uth orization in
writing.

ZKD/8.87.10/R ung

O u r 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 exemplifies 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 consider 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,

pleasurable driving.

Daimler-Benz Aktiengesellschaft

3

Introduction

This Owner’s Manual contains a great deal of useful
information. We urge you to read it carefully and
familiarize 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 MERCEDES-BENZ dealer will be glad
to demonstrate 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 MERCEDES-BENZ, including:

• New Car Limited Warranty

• Emission System Warranty

• Emission Performance Warranty

• California Emission Control System
Warranty (California Only)

Maintenance

The Maintenance Booklet describes all the necessary

maintenance work which should be performed at
regular intervals.

Always have the Maintenance Booklet with you when
you take the vehicle to your authorized MERCEDES-
BENZ dealer for service. The Service Advisor will
record each service.

Roadside Assistance

Although your Mercedes-Benz is built to be as
trouble-free as possible, a Roadside Assistance
Program is available to provide emergency roadside
service after normal dealer hours and on weekends
and holidays in the contiguous United States.

Roadside Assistance is available Monday through Fri
day from 5:00 PM to 12:00 Midnight and on Saturday,
Sunday and legal holidays from 8:00 AM to
12:00 Midnight. In the event of a breakdown during
these hours, telephone this toll-free number:

1-800-222-0100.

For additional information, refer to the Mercedes-Benz
Roadside Assistance Program Booklet in your glove

compartment.

4

Change of Address or Ownership

If you change your address, be sure to send in the
“Change of Address Notice” 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
literature 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 coun
tries, please be aware that:

• unleaded fuels for vehicles with catalytic conver
ters may not be available; the use of leaded fuels
will damage the catalysts,

• fuel may have a considerably lower octane rating,
and improper fuel can cause engine damage,

• service facilities or replacement parts may not be
readily available.

Certain Mercedes-Benz models are available for deliv
ery in Europe under our European Delivery Program.
For details, consult your authorized
MERCEDES-BENZ dealer or write 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
described 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 im

portant 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 108

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 performance 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

RPMs (no more than % of maxi

mum permissible speed in each
gear).

Avoid accelerating by kickdown. It

is not recommended to brake the

vehicle by manually shifting to a

lower gear. We recommend to se
lect positions “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 Lamp Symbols 13
Catalytic Converter Cautions 14
Starting and Turning off the

Engine 15
Driving Instructions 16
MERCEDES-BENZ

Maintenance System 19

9

Instruments and Controls

For more detailed descriptions see specified pages.

1 Adjustable air outlets (page 22)

2 Slide lever for adjustable air outlets (page 22)
3 Parking brake release knob (page 58)
4 Hood release handle (page 70)
5 Parking brake pedal (page 58)

6 Combination switch (page 40)

7 Exterior lamp switch (page 39)

8 Instruction tag (except tourist vehicle).

Use only premium unleaded gasoline

15 Rear window defroster switch (page 43)
16 Automatic antenna switch (page 56)
17 Front dome lamps switch (page 44)
18 Radio (page 49)
19 Air recirculation switch (page 22)

20 Automatic climate control (page 22)
21 Ashtray with lighter (page 42, 90)
22 Left power window switch (page 44)

23 Left seat heater switch (page 32)
24 Hazard warning flasher system switch

9 Cruise control (page 61)

10 Instrument cluster (page 12)
11 Horn control, air bag (page 35)
12 Steering lock with ignition/starter switch

(page 38)

13 Adjustable air outlets (page 22)

14 Outside temperature indicator (page 65)

10

25 Right seat heater switch (page 32)
26 Right power window switch (page 44)
27 Adjusting switch for exterior mirror on front

passenger side (page 41)

28 Glove compartment, illuminated (only with key in

steering lock positions 1 or 2)

To open, slide handle sideways

29 Loudspeaker cover, right and left

11

Instruments and Controls

1902

Instrument Cluster 8

1

Turn signal indicator lamp, left (green)

2

Economical driving indicator. See page 66

3

Coolant temperature gauge. See page 64

4

Fuel gauge with reserve warning lamp (yellow).
See page 64

5

Oil pressure gauge (bar). See page 63

6

Reset knob for trip odometer

10

11

12

13

14

(depress to reset)

7

Speedometer

15

12

Main odometer

9

Trip odometer

Dimmer knob for instrument lamps
(rotate to vary intensity)

Knob for clock adjustment
(press in for adjustments)

Electric clock

Tachometer

Red marking on tachometer:
Excessive engine speed

Turn signal indicator lamp, right (green)

Indicator Lamp Symbols

Function Indicator Lamp

High beam

ID

Fluid level for windshield
washer system low.
See page 64

Exterior light failure.
See page 64

Warning Lamps

(must go out with the engine running)

Battery not being charged.
See page 63

Brake fluid low (except Canada).

BRAK E

(®)

Parking brake engaged.
See pages 58, 63

Brake fluid low (Canada only).
Parking brake engaged.
See pages 58, 63.

Brake pad wear.
See page 63

Engine oil level low.
See page 63

Coolant level low.

See page 64

CH EC K

EN GI NE

ABS malfunction.
See page 62

SRS malfunction.
See page 35

Check engine malfunction.
If the lamp comes on when the engine
is running, it indicates a malfunction of
the Ofe-sensor on Federal version ve
hicles, and injection system or emission
control system on the California version
vehicles. In either case we recommend
that you have the malfunction checked
as soon as possible.
See page 66

Seat belt warning lamp

Catalytic Converter Cautions

Your MERCEDES-BENZ is equipped
with monolithic catalytic converters,
an important element in conjunction
with the O^-sensor to achieve
substantial control of the pollutants
in the exhaust emissions. Keep
your vehicle in proper operating
condition by following our recom
mended maintenance instructions
as outlined in your maintenance
booklet.

Caution!

To prevent damage to the catalytic

converters, use only premium
unleaded gasoline in this vehicle.
Should any noticeable irregularities
in the engine operation occur, ex
cessive unburned fuel may reach

the converter causing it to over

heat.

Warning!
As with any vehicle, do not idle,

park or operate this vehicle in
areas where combustible
materials such as grass, hay or

leaves can come into contact

with the hot exhaust system, as
these materials could be ignited.

14

Starting and Turning off the Engine

Engage parking brake and move
the gear selector lever in either “P”
or “N” position before starting the

engine.
Turn key to steering lock position 2.

The charge indicator lamp should
come on.

Cold Engine

Turn key in steering lock clockwise
to the stop. Do not depress accel

erator. Release key only when the

engine is firing regularly.
At ambient temperatures below

—18° C (0° F), depress accelerator
three times prior to starting.

Hot Engine

Turn key in steering lock clockwise
to the stop. Do not depress accel
erator. If the engine has not fired
after approx. 4 seconds, depress
accelerator and continue cranking
until the engine is firing regularly.
Release key and back off accele
rator.

At very high coolant temperatures
the engine starting time can be
shortened if the accelerator is
depressed slowly at the beginning
of the starting process.

Turning off

Turn the key to steering lock posi
tion 0 and only remove the key
when the vehicle is stopped.

If the coolant temperature is very
high (e.g. after hard driving on
mountain roads), do not shut off

the engine immediately, allow it to

run for 1-2 minutes at increased
idle speed.

Important!

Due to the installed starter non
repeat unit, the key must be
returned to steering lock position 0
before a new starting attempt is
made.

Observe the oil pressure gauge im
mediately after starting the engine.
In a very cold engine the oil pres
sure will only rise slowly, some time
after the engine has started. Do not
speed up the engine before pres
sure is registered on the pressure
gauge.

The charge indicator lamp should
go out as soon as the engine has
started.

In areas where temperatures
frequently drop below —25° C

(—13° F), we recommend that a

block heater be installed. Your
authorized MERCEDES-BENZ
dealer will advise you on this
subject.

Driving Instructions
Power assistance

When the engine is not running, the

brake and steering systems are
without power assistance. Under
these circumstances, a much

greater effort is necessary to stop

or steer the vehicle.

Brakes

Caution!

When driving down long and steep

grades, relieve the brakes by shift

ing into “3”, “2” or “B”. This helps

prevent overheating of the brakes

and reduces brake pad wear. Do

not exceed engine speed limits

(see page 60).
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 water deep

enough to wet brake components,
the first braking action may be

somewhat reduced and increased

pedal pressure may be neces

sary. Be sure to maintain a safe

distance from vehicles in front.

16

The condition of the parking brake
system is checked each time the
car is in the shop for maintenance.

Between maintenance checks it is

a good practice to apply the

parking brake once or twice while

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 sec
onds while pulling the release

knob out before releasing the

parking brake completely. This

practice will keep the parking

brake at maximum 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.

Caution!

Resting your foot on the brake pe
dal will cause excessive and pre

mature wear of the brake pads.

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 ins
trument 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 without delay.

Install only brake pads and brake
fluid recommended by MERCEDES-

BENZ.

If other than recommended brake

pads are installed, the braking pro

perties of the vehicle can be affect
ed to an extent that the safety is

substantially impaired.

Tires

Tread wear indicators (TWI) are

required by law. These indicators
are located in six places on the
tread circumference and become
visible at a depth of approx. 2 mm
(V1 6 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 wear

down too far. With less than
3 mm ('/s in) of tread, the adhe
sion properties on a wet road are
sharply reduced.

Depending upon the weather

and/or road surface (conditions),
the traction varies widely.

Specified tire pressure must be
maintained. This applies particularly
if the tires are subjected to high
loads (e.g. high speeds, heavy

1801

loads, high ambient temperatures).

Aquaplaning

Depending on the depth of the

water layer on the road, aquaplan

ing may occur, even at low speeds
and with new tires. Avoid track
grooves in the road and apply
brakes cautiously in the rain.

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.

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 bal

anced handling characteristics. On
packed snow, they can reduce your

stopping distance as compared
with summer tires. Stopping dis
tance, however, is still considerably
greater than when the road is wet
or dry.

Parking
Warning!
To reduce the risk of personal in

jury as a result of vehicle move

ment, before leaving the vehicle

always:

1. Keep foot on brake pedal.

2. Firmly depress parking brake

pedal.

3. Slowly release brake pedal.

4. Move the selector lever to

position “P”.

5. Turn front wheels towards the

road curb.

6. Turn the key to steering lock

position 0 and remove.

Note:
It is advisable to set the parking

brake whenever leaving the vehicle.

Also, when parking on hills, always

apply the parking brake. In addition,
move selector lever to positon “P”.

Winter Driving Instructions

The most important rule for slippery
or icy roads is to drive sensibly and
to avoid abrupt acceleration, brak

ing 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 corrective

steering action.

Road salts and chemicals can
adversely affect braking efficiency.

Increased pedal force may become
necessary to produce the normal
brake effect. We therefore recom
mend depressing the brake pedal
repeatedly when traveling on salt-
strewn roads at length. This can
bring road salt impaired braking
efficiency back to normal. A prere
quisite is, however, that this is
possible without endangering 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.

18

MERCEDES-BENZ Maintenance

System

A maintenance booklet is included
with your car, listing all the main
tenance jobs that must be carried

out after the following mileages:

Routine Maintenance

Inspection at

1300-1600 km (800-1000 miles)

Lubrication Service every
12000 km (7500 miles)

Maintenance Service every

24000 km (15000 miles)
Additional Work every

48000 km (30000 miles)

For additional details refer to the

Maintenance Booklet.

In the case of low mileage opera
tion, the Maintenance Service must

be carried out at least once every

2 years.

Engine Oil and Filter Change

Required every 12000 km

(7500 miles), or at least once a
year (fall) when using year-round

multigrade oil; otherwise at least
twice a year (spring and fall).

For engine oil recommendations,

see page 98.

Severe Operating Conditions

Under severe operating conditions
or heavy use, it may be necessary
to carry out prescribed mainte
nance jobs at shorter intervals, for
example:

Engine: Oil change with filter change

every 6000 km (3750 miles)
Automatic transmission: Fluid

change without filter change every
24000 km (15000 miles)

Tires: Inspect every 12000 km

(7 500 miles)

Air filter: Clean or replace element
every 24000 km (15000 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 mainte
nance booklet that all lubrication
and maintenance services have
been carried out at the correct in
tervals.

Operation

Automatic Climate Control
Car Keys
Opening the Doors
Locking and Unlocking

of Doors
Central Locking System
Anti-Theft Alarm System
Seat Adjustment
Heated Seats
Supplemental Restraint System

(SRS)-Seat Belts, Emergency

Tensioning Retractors,

Driver Air Bag
Steering Lock
Exterior Lamp Switch
Combination Switch
Exterior Rear View Mirrors
Inside Rear View Mirror
Lighter
Sun Visors
Rear Window Defroster
Interior Lamps
Power Windows
Soft Top
Electronic Radio

22
27
28

28
29
30
31
32

33
38
39
40
41
41
42
42
43
44
44
45
49

21

Automatic Climate Control

The engine must be running for the
climate control system to operate.

1 Temperature selector

2 Pushbuttons for function selec

tion (only press individually)

Defrost
Multi-Level

Normal setting
EC (Economy)

3 Fan control buttons

(only press individually)

© Maximum fan speed

kuT°Ml Automatic fan speed control

Minimum fan speed
4 Air recirculation switch
5 Adjustable air outlets
6 Volume control levers for adjust

able air outlets (7), right and left

7 Adjustable air outlets, right and

left

For maximum operating efficiency,
keep windows closed, the soft top
raised or the hard top mounted.

Heating, cooling and air distribution

within the vehicle’s interior will be

automatically controlled. This is
accomplished with the temperature
selector (1), the pushbuttons (2)
and the fan control buttons (3).

The adjustable air outlets (5) and

(7) can be moved to direct the flow
of air as desired. Outlets (7) can be
opened or closed with slide levers

(6).

Slide lever (6) towards the center of
the car to open outlet (7).

With the exterior lamps turned on

(except standing lamps), the sym

bols on all buttons light up. Each

button shines brighter when

depressed.

Note:
The air conditioner removes con

siderable moisture from the air

during operation. It is normal for

water to drip on the ground

through openings in the underbody.

22

Off (air supply off)

Temperature Selection (° C)

The desired temperature can be adjusted by
turning the temperature selector. The selected

temperature is reached as quickly as possible
and maintained. A basic setting of 22° C (72° F) is re
commended. To avoid undesirable temperature fluc
tuations, a set temperature should be readjusted in
small increments.

To override the automatic climate control turn the
temperature wheel to either extreme end position

“MIN” or “MAX”.

“MIN” (detent) = peak cooling performance.
The system operates with recirculated air, without
additional fresh air.

“MAX” (detent) = maximum heating performance.
If button s is pressed with the temperature selector

in the “MIN” or “MAX” position, the fan will run con
tinuously at a high speed.

Air Recirculation

■9 Pressing the symbol-side of the air recirculation
H switch causes air to be recirculated without addi

tional fresh air and the red indicator lamp to light
up. To turn the air recirculation switch off, press the
blank side of the switch. The red indicator lamp
should then go out.

The air recirculation mode can be used with high or
low outside temperatures, or to prevent dust or an
noying odors from entering the car’s interior. If the
windows should fog up from the inside, the air recir
culation switch should be turned off. The red indica
tor lamp should then go out.

Note:
The air recirculation mode will not come on if but

ton 0 is pressed.
Function Setting

( § ) Off

In this setting, the Automatic Climate Control system
is shut off including the fresh air supply to the interior
of the car (to prevent entrance of odors, i.e. while
driving through tunnels, etc. or to prevent the en
trance of water from automatic car wash). Use this
setting only temporarily while driving.

Economy setting - Ventilation

Normal setting - Cooling

Economy setting - Heating

Normal setting - Heating

1417

EC (ECONOMY) = Economical setting; the air
conditioning compressor remains off.

0

In the remaining three settings, the air conditioning
compressor comes on with ambient temperatures
above +5° C (41° F).

As a fuel saving measure, we recommend this setting
be used with cool outside temperatures, so that the
air conditioning compressor remains off.

In the ventilation mode, air is emitted from outlets (5)
and (7).

In the heating mode, warm air is primarily supplied to
the foot area. In addition, warm air is also supplied to
the ducts in the doors. Only enough warm air is sup
plied to the windshield and air outlets (7), to keep the
glass defogged in normal weather conditions. In the
heating mode, air may be emitted periodically from
outlets (5), depending on the interior temperature.

With low outside temperatures, fan operation is can
celled until the engine coolant starts to warm up.

Normal Setting

©

This setting is recommended when you wish to

cool the interior of your car. It is also recommended
for use in humid weather.

The s ettin g^ corresponds with setting@ but, in
addition, the air can also be cooled as necessary.

24

Multi-Level ventilation - Cooling

Multi-Level ventilation - Heating

Multi-Level

0

This setting is used for clearing a fogged wind-

As soon as the windshield is clear, reset to
In the heating mode, warm air is supplied to the

windshield, foot area, air outlets (7), and to the ducts
in the doors. Additionally, warm air may be emitted
periodically from outlets (5), depending on the interior
temperature.

In the cooling mode, cool air is supplied to the wind
shield, foot area, door ducts, and air outlets (5) and
(7).

Note:

In warm, humid climates, prolonged use of this set
ting may create condensation on the outside of the
windshield, directly above the defroster ducts.

0

or

e ra Defrost

The maximum amount of heated air is directed to
the windshield and side windows (outlets, 7). This
setting overrides temperature and fan speed settings,
and the air recirculation switch.

26

Car Keys

Included with your vehicle are two
master keys, one valet key and one
flat (master) key.

Master Key - square head with a
red dot - fits all locks on the car.
Arms/disarms the anti-theft alarm
system.

Valet Key - round head with a red
dot - fits only the door locks and
the steering lock. Arms/disarms the
anti-theft alarm system. The valet
key will not fit the trunk or glove
compartment locks. This key
should be used whenever the car
is left with an attendant. Be sure to
lock glove compartment and trunk
with the master key.

Flat Key

The flat key with a red dot
fits all vehicle locks.
Arms/disarms the anti-theft
alarm system. We recom

mend that you carry the

T

flat key with you and keep

it in a safe place so that it
is always handy. Never
leave the flat key in the

vehicle.

Obtaining Replacement Keys

Your vehicle is equipped with a

theft deterrent locking system re
quiring 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. Un

supervised use of vehicle equip
ment may cause serious personal
injury.

The driver’s door can be locked
only if it is closed and the door

lock has properly engaged.

Opening the Doors

From outside: pull handle (1)
outwards.

From inside: pull handle (4) in door
panel.

28

Locking and Unlocking of Doors

From the outside: turn key.
From the inside: actuate locking

lever.
2 Unlocking (rearward position)

3 Locking (forward position)