2007 MERCEDES-BENZ SLR instrument cluster

319 Practical hints
What to do if ...
Left display Right display Possible cause/consequencePossible solution
Front passenger
airbagenabled
See Oper. ManualThe passenger front air bag and
the passenger knee air bag are
activated while driving even
though a child, small individual,
or object below the system’s
weight threshold is on the pas-
senger seat, or the passenger
seat is empty. Objects on the
seat or forces acting on the seat
may make the system sense
supplemental weight.Stop the vehicle in a safe location as soon as possible and
check the passenger seat for the following:
Switch off the ignition (page 40).
Apply the parking brake (page 55).
Remove child and child restraint from passenger seat.
Make sure that no objects which are applying supplemen-
tal weight onto the seat are present. The system may rec-
ognize such supplemental weight and sense that an
occupant on the passenger seat is of a greater weight
than actually present.
Keep the seat unoccupied, close the passenger door and
switch on the ignition (
page 40).
Monitor the PASSENGER AIR BAG OFF indicator lamp
(
page 70) and the multifunction display in the instrument
cluster (
page 117) for the following:
(Continued on next page)

321 Practical hints
What to do if ...
Left display Right display Possible cause/consequencePossible solution
Front passenger
airbagdisabled
See Oper. ManualThe passenger front air bag is
deactivated while driving even
though an adult or someone
larger than a small individual is
occupying the passenger seat.
Forces acting on the seat may
make the system sense a
decrease in weight.Stop the vehicle in a safe location as soon as possible and
check the passenger seat for the following:
Switch off the ignition (page 40).
Apply the parking brake (page 55).
Have the passenger vacate the seat and exit the vehicle.
Keep the seat unoccupied, close the passenger door and
switch on the ignition (
page 40).
Monitor the PASSENGER AIR BAG OFF indicator lamp
(
page 70) and the multifunction display in the instrument
cluster (
page 117) for the following:
With the seat unoccupied and the ignition switched on,

the PASSENGER AIR BAG OFF indicator lamp (page 70)
should illuminate and remain illuminated, indicating that
the OCS (
page 67) has deactivated the passenger front
air bag and the passenger knee air bag.
(Continued on next page)

337 Practical hints
What to do if ...
During severe operating conditions and
stop-and-go city traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Left displayRight displayPossible cause/
consequencePossible solution
Observe the coolant temperature gauge in the
instrument cluster (
page 29).
If the temperature rises again:
Contact an authorized Mercedes-Benz Center
immediately.
Warning!G
Driving when your engine is overheated can
cause some fluids which may have leaked
into the engine compartment to catch fire.
You could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by open-
ing the hood. Stay away from the engine if
you see or hear steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle
until the engine has cooled down.!The engine should not be operated with the
coolant temperature above 248°F (120°C).
Doing so may cause serious engine damage
which is not covered by the Mercedes-Benz
Limited Warranty.

338 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
•Differential
overheatedThe differential oil is too hot.Stop your vehicle immediately in a safe location.
Do not drive any further.
Apply the parking brake (page 55).
Wait until the instrument cluster display has cleared.
Otherwise you could damage the rear differential.
!The differential warning should not be
ignored. Extended driving with the symbol
displayed could result in serious rear differential
damage that is not covered by the
Mercedes-Benz Limited Warranty.

362 Practical hints
Flat tire
The vehicle is equipped with the TIREFIT
kit.
Preparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.
Turn on the hazard warning flashers.
Turn the steering wheel so that the
front wheels are in a straight ahead
position.
Set the parking brake.
Move the gear selector lever to park
positionP.
Turn off the engine (page 56).
Remove the SmartKey from the starter
switch.
Have any passenger exit the vehicle at
a safe distance from the roadway.
Sealing tires with TIREFIT
Small tire punctures, particularly those in
the tread, can be sealed with TIREFIT.
TIREFIT can be used in ambient tempera-
tures down to -4°F (-20°C).
Foreign objects (e.g. screws or nails)
should not be removed from the tire.
Take TIREFIT, the sticker, and the
electric air pump out of the trunk.
Attach the sticker where it will be easily
seen by the driver on the instrument
cluster.
!A wheel change should only be carried out
at an authorized Mercedes-Benz Center. Other-
wise there is a danger of damaging the vehicle by
jacking it up incorrectly.
iOpen door only when conditions are safe to
do so.
Warning!G
Keep TIREFIT away from sparks, open flame
or heat source.
Do not smoke.
Warning!G
TIREFIT is a limited repair device. TIREFIT
cannot be used for cuts or punctures larger
than approximately 0.16 in (4 mm) and tire
damage caused by driving with extremely
low tire inflation pressure, or on a flat tire, or
a damaged wheel.
Do not drive the vehicle under such
circumstances.
Contact your nearest Mercedes-Benz
Center for assistance or call Roadside
Assistance.
!After using TIREFIT, the tire inflation
pressure sensor may have to be replaced.

401 Technical terms
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
engine temperature and fuel gauge.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible. This
very quickly accelerates the vehicle
and should not be used for normal
acceleration needs.
Kilopascal (kPa)
(
page 285)
Maximum load rating
(
page 285)
Maximum loaded vehicle weight
(
page 285)
Maximum tire inflation pressure
(
page 285)MON
(M
otor Octane Number)
The Motor Octane Number for gasoline
as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the MON (Motor Octane Number) and
RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
Two display fields in the instrument
cluster used to present information
provided by the control system.
Multifunction steering wheel
Steering wheel with buttons for
operating the control system.
Normal occupant weight
(
page 285)OCS
(O
ccupant Classification System)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.
Overspeed range
Engine speeds within the red marking
on the tachometer dial. Avoid this
engine speed range, as it may result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.

408 Index
Central locking
Automatic 104, 139
Central locking switch 31
Locking/unlocking from inside 105
Central locking switch 105
Child restraints 60
Children in the vehicle 75
Air bags 63
Indicator lamp, passenger front air
bag 70
Infant and child restraint systems 60,
70, 78
Occupant Classification System
(OCS) 67
Passenger front air bag off indicator
lamp 70, 312
Cigarette lighter 208
Clock 29, 133
Setting time 134
Closed circuit racing
Brakes 238
Cockpit 26, 399Cold tire inflation pressure 284
Combination switch 27, 51, 110
Compact guide 354
Control and operation of radio
transmitters 243
Control system 117, 399
Multifunction display 117
Multifunction steering wheel 118
Control system menus 120
722 Edition menu 123
AUDIO menu 126
Settings menu 129
Standard display menu 122
TEL menu 141
Trip computer menu 139
Vehicle status message memory
menu 128
Control system submenus 121, 130
Instrument cluster 132
Lighting 134
Time 133
Vehicle 138Controller Area Network see CAN
Coolant 248, 255, 394
Anticorrosion/antifreeze mixing ratio
and quantity 396
Capacities 390
Checking coolant level 248, 255
Messages in the multifunction
display 335
Temperature 245
Temperature gauge 115
Warning lamp 29, 306
Courtesy lighting 113
Cruise control 27, 203, 400
Messages in the multifunction
display 317
Curb weight 284
Customer Assistance Center see CAC

410 Index
E
Electric air pump 353
Electrical fuses 373
Electrical outlet see Power outlet
Electrical system, Technical data 386
Electro-hydraulic brake system 81, 86,
402
Activation 87
Deactivation 88
Driving hints 88
Emergency operating mode 87
Messages in the multifunction
display 329
Self-check 88, 334
Warning lamp 86
Electronic Stability Program see ESP
®
Emergency calls
911 166
Tele Aid 215
Emergency operations
Automatic transmission (Limp-Home
Mode) 181
Remote door unlock, Tele Aid 220
Trunk lid, Releasing from inside 104
Unlocking the vehicle 355Emergency Tensioning Device see ETD
Emergency, In case of
First aid kit 353
Flat tire 362
Hazard warning flasher 111
Instrument cluster, Indicator
lamps 300
Roadside Assistance 16, 217
Towing the vehicle 370
Emission control 245
Information label 378
System warranties 14
Vacuum line routing diagram
label 378
Engine
Break-in recommendations 234
Cleaning 297
Compartment 250
Malfunction indicator lamp 29, 304
Number 378, 400
Poly-V-belt layout 379
Starting 47
Tachometer 29
Technical data 380
Turning off 56Engine coolant see Coolant
Engine oil 253, 391
Adding 254, 389
Additives 253, 391
Checking level 253
Consumption 253
Filler neck 253
Message in the multifunction
display 339
Recommended engine oils and oil
filter 391
Temperature 29
Oil temperature indicator 307
Viscosity 400
ESP
®81, 83, 400
Messages in the multifunction
display 318
Resetting 318
Warning lamp 83, 300
ETD 74, 400
Safety guidelines 64
Exterior lamp switch 51, 106
Exterior rear view mirrors 44