2009 MERCEDES-BENZ SLR check engine

Contents
Setting the temperature ............... 189
Adjusting air distribution .............. 190
Adjusting air volume .................... 191
Maximum cooling MAX COOL ...... 191
Front defroster ............................. 192
Air recirculation mode.................. 193
Air conditioning ............................ 194
Residual heat and ventilation ....... 195
Open air ............................................. 196
Opening and closing the door windows
196
Synchronizing power windows ..... 198
Opening and closing the soft top . 198
Wind screen ................................. 201
Linkage covers ............................. 202
Driving systems ................................. 205
Cruise control .............................. 205
Useful features .................................. 209
Map pocket in passenger footwell 209
Storage compartments ................ 209
Parcel net in trunk........................ 210
Ashtray and cigarette lighter ........ 210
Power outlet................................. 212
Telephone .................................... 212
Tele Aid ........................................ 215
Garage door opener ..................... 221Floormat, driver’s side .................. 227
Floormats* (Only Mercedes-Benz SLR
McLaren Roadster 722S) .............. 228
Dust cover .................................... 229
Roof and trunk lid racks ................ 230
Operation.......................................... 232
The first 1000 miles (1500 km) .......... 234
Driving instructions ............................ 235
Drive sensibly – save fuel.............. 235
Drinking and driving ...................... 235
Pedals ........................................... 235
Power assistance .......................... 236
Brakes........................................... 236
Driving off ..................................... 239
Parking.......................................... 240
Tires .............................................. 240
Hydroplaning................................. 241
Tire traction .................................. 241
Tire speed rating ........................... 242
Winter driving instructions ............ 242
Standing water.............................. 243
Passenger compartment ............... 244
Driving abroad .............................. 244Control and operation of radio
transmitters .................................. 244
Catalytic converter ....................... 245
Emission control ........................... 245
Coolant temperature .................... 246
At the gas station ............................... 247
Refueling....................................... 247
Check regularly and before a long trip .
248
Engine compartment .......................... 250
Hood ............................................. 250
Engine oil ...................................... 253
Transmission fluid level ................ 254
Coolant ......................................... 255
Trunk .................................................. 256
Batteries ....................................... 256
Windshield washer system and head-
lamp cleaning system ................... 257
Tires and wheels ................................ 259
Important guidelines ..................... 259
Tire care and maintenance ........... 260
Direction of rotation ..................... 262
Loading the vehicle ....................... 262
Recommended tire inflation pressure ..
268
Checking tire inflation pressure .... 270

17 Introduction
Operator’s Manual
Operating your vehicle outside the USA or Canada
If you plan to operate your vehicle in for-
eign countries, please be aware that:

service facilities or replacement parts
may not be readily available,


unleaded gasoline for vehicles with cat-
alytic converters may not be available;
the use of leaded fuels will damage the
catalysts,


gasoline may have a considerably low-
er octane rating, and improper fuel can
cause engine damage.Mercedes-Benz SLR McLaren
compliance
The Mercedes-Benz SLR McLaren vehicle
does not comply with the state certifica-
tion regulations of select states. It is not
permitted to register the vehicle in such
states. Check with an authorized
Mercedes-Benz Center for details.

40 Getting startedUnlockingStarter switch positions
Starter switch0For removing SmartKey
1Power supply for some consumers
2Ignition (power supply for all consum-
ers) and drive position. All lamps (ex-
cept high-beam headlamp indicator
lamp and turn signal indicator lamps
unless activated) in the instrument
cluster come on. If a lamp in the instru-
ment cluster fails to come on when the
ignition is switched on, have it checked
and replaced if necessary. If a lamp in
the instrument cluster remains on after
starting the engine or comes on while
driving, see “Lamps in instrument clus-
ter” (
page 304).
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
i
When you switch on the ignition, the
indicator and warning lamps (except high-beam
headlamp indicator lamp and turn signal indica-
tor lamps unless activated) in the instrument
cluster come on. The indicator and warning
lamps (except high-beam headlamp indicator
lamp and turn signal indicator lamps if activated)
should go out when the engine is running. This
indicates that the respective systems are
operational.
!
If the SmartKey is left in the starter switch
position0 for an extended period of time, it can
no longer be turned in the starter switch.


Remove the SmartKey from the starter
switch and reinsert.
If the SmartKey can still not be turned in the
starter switch, the starter battery may not be
sufficiently charged.


Have the starter battery checked and
charged if necessary (
page 371). Contact
an authorized Mercedes-Benz Center.
To prevent accelerated battery discharge and a
possible dead battery, always remove the Smart-
Key from the starter switch when the engine is
not in operation.

47 Getting started
Driving


Place the seat backrest in a nearly up-
right position.


Never use a seat belt for more than one
person at a time.


Do not fasten a seat belt around a per-
son and another object at the same
time. When using a seat belt to secure
infant or toddler restraints or children
in booster seats, always follow the
child seat manufacturer’s instructions.


Check your seat belt during travel to
make sure that it is properly
positioned.


Make sure that the seat belt is always
fitted snugly. Take special care of this
when wearing loose clothing.
Starting the engine
Warning!
G
Do not pass belts over sharp edges. They
could tear.
Do not allow the seat belt to get caught in
the door or in the seat adjustment mecha-
nism. This could damage the seat belt.
Never attempt to make modifications to
seat belts. This could impair the effective-
ness of the seat belts.
Do not bleach or dye seat belts as this may
severely weaken them. In a crash, they may
not be able to provide adequate protection.
Damaged seat belts or seat belts that were
highly stressed in an accident must be
replaced. Contact an authorized
Mercedes-Benz Center.
Warning!
G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not run the engine in confined areas
(such as garage) which are not properly
ventilated. If you think that exhaust gas
fumes are entering the vehicle while driving,
have the cause determined and corrected
immediately. If you must drive under these
conditions, drive only with at least one
window fully open.

54 Getting startedDrivingProblems while driving
The engine runs erratically and misfires

An ignition cable may be damaged.


The engine electronics may not be
operating properly.


Unburned gasoline may have entered
the catalytic converter and damaged it.

Give very little gas.

Have the problem repaired by an
authorized Mercedes-Benz Center as
soon as possible.The coolant temperature is
above 248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.

Stop the vehicle as soon as possible in
a safe location and turn off the engine.
Allow engine and coolant to cool off.

Check the coolant level and add
coolant if necessary (
page 255).In case of accident
If the vehicle is leaking gasoline:

Do not start the engine under any
circumstances.

Notify local fire and/or police
authorities.
If the extent of the damage cannot be
determined:

Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
If no damage can be determined on the


major assemblies


fuel system


engine mount:

Start the engine in the usual manner.

121 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Standard display
722 S
1
1Only Mercedes-Benz SLR McLaren Roadster 722 S
AUDIO
Vehicle status
message memory
2
2The Vehicle status message memory menu is only displayed if there is a message stored.
Settings
Trip computer
Telephone
(page 122)
(page 123)
(page 127)
(page 128)
(page 129)
(page 139)
(page 141)
Commands/submenusDigital speedome-
ter/Outside tem-
perature
Engine oil tem-
perature
Selecting
radio station
Calling up vehicle
malfunction, warn-
ing and system sta-
tus messages
stored in memory
Resetting to fac-
tory settings
Fuel consumption
statistics since start
Loading
phone book
Calling up mainte-
nance service
display
Vehicle supply
voltage
Operating the
CD player
Instrument clus-
ter submenu
Fuel consumption
statistics since the
last reset
Searching for
name in
phone book
Checking tire
inflation pressure
RACETIMER
Time submenu
Resetting fuel con-
sumption statistics
Overall analysis
Lighting submenu
Distance to empty
Lap analysis
Vehicle submenu
i
The headings used in the menus table are
designed to facilitate navigation within the sys-
tem and are not necessarily identical to those shown in the control system displays.
The first function displayed in each menu will automatically show you which part of the system
you are in.

180 Controls in detailAutomatic transmissionUpshifting
Pull the right shift paddle2
(page 177).
or

Briefly press the gear selector lever to
the right in theD+direction.
The transmission shifts to the next
higher gear.If the red gearshift indicator lamp>
comes on in the speedometer display
(
page 29), shift to the next higher gear.
The fuel supply will otherwise be interrupt-
ed to prevent the engine from overrevving.
Mercedes-Benz SLR McLaren Roadster
722S:
If you have selected the 722S menu
(page 123) and
up appears in the right
multifunction display in addition to the red
gearshift indicator lamp>, shift to the
next higher gear. The fuel supply will other-
wise be interrupted to prevent the engine
from overrevving.
Deactivating manual gearshift program

Turn program mode selector switch1
(page 175) to the shift programC
orS.
The selected gearshift program ap-
pears in the right multifunction display.Emergency operation
(Limp-Home Mode)
If vehicle acceleration becomes less re-
sponsive or sluggish or the transmission
no longer shifts, the transmission is most
likely operating in limp-home (emergency
operation) mode. In this mode only second
gear and reverse gear can be activated.
Stop the vehicle in a safe location.

Move gear selector lever to park
positionP.

Turn off the engine.

Wait at least 10 seconds before
restarting.

Restart the engine.

Move gear selector lever to drive
positionD (for second gear) or reverse
gearR.

Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.
i
When you brake or stop, the transmission
shifts down to a gear from which you can easily
accelerate or take off.
!
In the manual program modeM, the trans-
mission will not upshift, even if the engine has
reached its overrevving range. Shift up to the
next gear before the engine has reached its over-
revving range. Make absolutely certain that the
engine speed does not reach the red marking on
the tachometer (
page 28). Otherwise the en-
gine could be damaged which is not covered by
the Mercedes-Benz Limited Warranty.


194 Controls in detailAutomatic climate controlAir conditioning
The air conditioning (cooling) function is
operational when the engine is running and
cools the vehicle interior down to the se-
lected temperature. In addition, the cool-
ing function dehumidifies the air in the
vehicle interior, thus preventing the
windows from fogging up.Deactivating
It is possible to deactivate the cooling
function of the automatic climate control
system. The air in the vehicle will then no
longer be cooled or dehumidified.

Press ± button (
page 186).
The indicator lamp on the ±
button comes on. The cooling function
switches off after a short delay.Activating
Moist air can fog up the windows. You can
dehumidify the air with the air
conditioning.

Press ± button again (
page 186).
The indicator lamp on the ± button
goes out.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.
Warning!
G
If you turn off the cooling function, the
vehicle will not be cooled when weather
conditions are warm. The windows can fog
up more quickly. Window fogging may
impair visibility and endanger you and/or
others.i
Condensation may drip out from underneath
the vehicle. This is normal and not an indication
of a malfunction.
i
Under certain circumstances, e.g. when the
fuel system is too hot and needs to be cooled,
the cooling switches on again automatically. The
red lamp on the ± button the automatic
climate control panel flashes.
After cooling the fuel system sufficiently, the air
conditioning switches off again and the red lamp
stops flashing.
!
If you press the ± button on the auto-
matic climate control panel and it starts to flash,
this indicates that the air conditioning is losing
refrigerant. The compressor has turned off. The
air conditioning cannot be turned on again.
Have the air conditioning checked at the nearest
authorized Mercedes-Benz Center.