light MERCEDES-BENZ SLR CLASS 2007 Repair Manual

344 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
.Reverse lamp
rightThe right backup lamp is
malfunctioning.Contact an authorized Mercedes-Benz Center as soon as
possible.
Reverse lamp
leftThe left backup lamp is
malfunctioning.Contact an authorized Mercedes-Benz Center as soon as
possible.
Tail lamp
left
Auxiliary bulb onThe left tail lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.Contact an authorized Mercedes-Benz Center as soon as
possible.
Tail lamp
right
Auxiliary bulb onThe right tail lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.Contact an authorized Mercedes-Benz Center as soon as
possible.
Turn off
lightsYou have removed the Smart-
Key from the starter switch,
opened the driver’s door and
left the exterior lamps on. Switch off the headlamps.
Turn off lights
or
remove keyThe exterior lamp switch is set
to U and you have forgotten
to take out the SmartKey. The
parking lamps remain switched
on.Switch off the headlamps.
or
Remove the SmartKey from the starter switch.

359 Practical hints
Replacing bulbs
Replacing bulbs
Safe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp
assemblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See an authorized
Mercedes-Benz Center for headlamp
adjustment.!Do not replace the LEDs or bulbs yourself.
You could otherwise damage the vehicle lighting
system or parts of the vehicle. Only have the
LEDs or bulbs replaced by an authorized
Mercedes-Benz Center.
iIf the headlamps are fogged up on the inside
as a result of high humidity, driving the vehicle a
distance should clear up the fogging.
iSubstitute bulbs will be brought into use
when lamps malfunction. Observe the messages
in the multifunction display (
page 341).
iIf one of the following bulbs blows, another
bulb will adopt its function:

Rear turn signals

Brake lamps

Side lamps

Tail lamps

364 Practical hints
Flat tire
Screw filler hosea onto tire valve7.
Close vent screw9 on pressure
gauge.
Insert electrical plug4 into vehicle
cigarette lighter socket.
Turn the SmartKey in the starter switch
to position1 (
page 40).
PressI on electric air pump switch8.
The electric air pump should now
switch on and inflate the tire.After 5 minutes, the pressure gauge must
display at least 26 psi (1.8 bar). The air
hose can become hot during inflation.
Please exercise appropriate caution.
If this tire inflation pressure is not at-
tained, turn off the electric air pump,
detach the filler hose from the tire
valve, and drive vehicle back and forth
very slowly approximately 30 ft (10 m).
This serves to better distribute the
TIREFIT sealant material inside the tire.
Unscrew the air pump’s air hose5
from flange6 of the TIREFIT
container.
Screw air hose5onto tire valve7.
Inflate the tire again.
After attaining a tire inflation pressure
of 26 psi (1.8 bar), press0 on electric
air pump switch8.
The electric air pump should now be
switched off.
Turn the SmartKey in the starter switch
to position0 (
page 40).
Detach the electric air pump.
The air hose may still be hot. Please
exercise appropriate caution.
!Do not operate the electric air pump longer
than 8 minutes without interruption. Otherwise it
may overheat.
You may operate the air pump again after it has
cooled off.
Warning!G
If a tire inflation pressure of 26 psi (1.8 bar)
is not attained, the tire is too severely
damaged for TIREFIT to provide a reliable
tire repair.
In this case, TIREFIT cannot properly seal
the tire.
Do not drive the vehicle.
Contact the nearest Mercedes-Benz Center
or call Roadside Assistance.


382 Technical data
Rims and tires
Mixed size tires
Only Mercedes-Benz SLR McLaren:
Turbine-style10-spoke-style*
Front axle:
Rims (light alloy)9 J x 199 J x 18
Wheel offset1.83 in (46.5 mm)1.77 in (45 mm)
Summer tires (radial-ply tires)255/35 ZR19 (96Y) XL1245/40 ZR18 (93Y)
Rear axle:
Rims (light alloy)111/2 J x 19111/2 J x 18
Wheel offset1.73 in (44 mm)1.73 in (44 mm)
Summer tires (radial-ply tires)295/30 ZR19 (100Y) XL1295/35 ZR18 (99Y)1
1Must not be used with snow chains.
!Only use Michelin tires of the sizes and
types noted above. They are the only tires
approved for use on the Mercedes-Benz SLR
McLaren. Use of tires not specially approved for
the Mercedes-Benz SLR McLaren could result in
unanticipated performance characteristics. For
more information, contact an authorized
Mercedes-Benz Center.

383 Technical data
Rims and tires
Only Mercedes-Benz SLR McLaren
722 Edition:
Lightweight-style
Front axle:
Rims (light alloy)9 J x 19
Wheel offset1.83 in (46.5 mm)
Summer tires (radial-ply tires)255/35 ZR19 (96Y) XL1
Rear axle:
Rims (light alloy)111/2 J x 19
Wheel offset1.73 in (44 mm)
Summer tires (radial-ply tires)295/30 ZR19 (100Y) XL1
1Must not be used with snow chains.
!Only use Michelin tires of the sizes and
types noted above. They are the only tires
approved for use on the Mercedes-Benz SLR
McLaren 722 Edition. Use of tires not specially
approved for the Mercedes-Benz SLR McLaren
722 Edition could result in unanticipated perfor-
mance characteristics. For more information,
contact an authorized Mercedes-Benz Center.

384 Technical data
Rims and tires
Winter tires*
Only Mercedes-Benz SLR McLaren:
Front axle:
Rims (light alloy)9 J x 18
Wheel offset1.77 in (45 mm)
Tires (radial-ply tires)245/40 R18 97V XL M+S.
Rear axle:
Rims (light alloy)9 J x 18
Wheel offset1.77 in (45 mm)
Tires (radial-ply tires)245/40 R18 97V XL M+S.
!Only use Michelin tires of the sizes and
types noted above. They are the only tires
approved for use on the SLR. Use of tires not
specially approved for the SLR could result in
unanticipated performance characteristics. For
more information, contact an authorized
Mercedes-Benz Center.

385 Technical data
Rims and tires
Only Mercedes-Benz SLR McLaren
722 Edition:
Front axle:
Rims (light alloy)9 J x 19
Wheel offset1.83 in (46.5 mm)
Tires (radial-ply tires)255/35 R19V 96 XL M+S.1
Rear axle:
Rims (light alloy)9 J x 19
Wheel offset1.83 in (46.5 mm)
Tires (radial-ply tires)255/35 R19V 96 XL M+S.1
1Must not be used with snow chains.
!Only use Dunlop tires of the sizes and types
noted above. They are the only tires approved for
use on the Mercedes-Benz SLR McLaren 722
Edition. Use of tires not specially approved for
the Mercedes-Benz SLR McLaren 722 Edition
could result in unanticipated performance char-
acteristics. For more information, contact an
authorized Mercedes-Benz Center.

392 Technical data
Fuels, coolants, lubricants, etc.
Brake fluid
Only brake fluid approved by
Mercedes-Benz is recommended. Your
authorized Mercedes-Benz Center will
provide you with additional information.Premium unleaded gasoline
Warning!G
During vehicle operation, the boiling point of
the brake fluid is continuously reduced
through the absorption of moisture from the
atmosphere. Under extremely strenuous
operating conditions, this moisture content
can lead to the formation of bubbles in the
system, thus reducing the system’s
efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s Mainte-
nance Booklet for replacement interval.
Warning!G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
personal injury.
Never allow sparks, flame or smoking
materials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid
inhaling fumes and skin or cloth contact,
extinguish all smoking materials.
Direct skin contact with fuels and the
inhalation of fuel vapors can damage your
health.
!To maintain the engine’s durability and per-
formance, premium unleaded gasoline must be
used. If premium unleaded is not available and
low octane fuel is used, follow these precau-
tions:

Have the fuel tank only partially filled with
unleaded regular gasoline and fill up with
premium unleaded gasoline as soon as
possible.

Avoid full throttle driving and abrupt acceler-
ation.

Do not exceed an engine speed of 3000 rpm
if the vehicle is loaded with a light load such
as two persons and no luggage.

Do not exceed 2/3 of maximum accelerator
pedal position if the vehicle is fully loaded or
operating in mountainous terrain.

399 Technical terms
ABS
(A
nti-lock Braking System)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Accessory weight
(
page 284)
ACL
(A
irbrake/Central Locking)
Controls the locking mechanism of the
Airbrake and the central locking
system.
Air pressure
(
page 284)
Aspect ratio
(
page 284)
Bar
(
page 284)BAS
(B
rake Assist System)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bead
(
page 284)
Bi-Xenon headlamps
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.
CAC
(C
ustomer Assistance Center)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a
breakdown.CAN system
(C
ontroller Area Network)
Data bus network serving to control
vehicle functions such as door locking
or windshield wiping depending on
vehicle settings and/or ambient
conditions.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.
Cold tire inflation pressure
(
page 284)
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to
adjust settings.

406 Index
Ashtray 208
Aspect ratio 284
AUDIO menu 126
Audio system 31, 145
Button and soft key operation 148
Cassette operation 154
CD operation 158
Location 145
Operating and display elements 146
Operating safety 145
Operation 148
Radio operation 151
Switching on/off 148
Telephone operation 162, 210
Auto-dimming, Interior rear view
mirror 182
Automatic car wash 296
Automatic central locking, Control
system 104, 139Automatic climate control 186
Adjusting air volume 193
Air conditioning refrigerant 391
Air conditioning, Cooling 196
Air distribution 191, 192
Air recirculation mode 195
Air vents 187
Air volume 191
Control panel 188
Deactivating system 190
Defrosting 185, 194
MAXCOOL 193
Residual heat utilization 197
Side air vents 31
Temperature 191
Temperature sensor 33
Automatic headlamp mode 107
Automatic lighting control, Interior
lighting 112Automatic transmission 169
Accelerator position 173
Damage 372
Driving tips 173
Emergency operation (Limp-Home
Mode) 181
Gear ranges 174
Gear selector lever 32, 169
Gear selector lever control one-touch
gearshifting 175
Gear selector lever position 171
Gear shifting malfunctions 181
Kickdown 173
Manual shift program 179
Shift program mode selector
switch 175
Shifting procedure 170
Starting the engine 47
Steering wheel gearshift control
one-touch gearshifting 177
Towing 372
Transmission fluid level 254
Automatic transmission fluid 254