ContentsAt the gas station............................... 241
Refueling ...................................... 241
Check regularly and before
a long trip ..................................... 242
Engine compartment.......................... 244
Hood ............................................ 244
Engine oil...................................... 247
Transmission fluid level ................ 249
Coolant......................................... 250
Trunk ................................................. 251
Batteries....................................... 251
Windshield washer system and
headlamp cleaning system ........... 252
Tires and wheels ................................ 254
Important guidelines .................... 254
Tire care and maintenance ........... 255
Direction of rotation ..................... 257
Loading the vehicle ...................... 257
Recommended tire inflation
pressure ....................................... 264
Checking tire inflation pressure ... 266
Tire labeling .................................. 271
Load identification........................ 275
DOT, Tire Identification Number
(TIN) ............................................. 276
Maximum tire load ....................... 277Maximum tire inflation pressure .. 278
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 279
Tire ply material ........................... 281
Tire and loading terminology ........ 281
Rotating tires ............................... 284
Anti-theft wheel nuts .................... 285
Winter driving .................................... 287
Winter tires* ................................ 287
Snow chains ................................. 288
Maintenance ...................................... 289
Clearing the maintenance
service indicator message............ 289
Maintenance service term
exceeded ..................................... 290
Calling up the service due date .... 290
Resetting the maintenance
service indicator........................... 291
Vehicle care ....................................... 292
Cleaning and care of the vehicle .. 292
Vehicle washing ........................... 293
Practical hints................................. 296
What to do if ... .................................. 298
Lamps in instrument cluster ........ 298
Lamp in center console................ 306
Vehicle status messages in the
multifunction display.................... 307
Symbol messages ........................ 315
Where will I find ...? ........................... 342
First aid kit ................................... 342
TIREFIT kit, electric air pump,
towing eye bolt and
vehicle literature portfolio ............ 342
Compact guide (Canada only) ...... 343
Unlocking in an emergency ............... 344
Unlocking the vehicle................... 344
Replacing SmartKey batteries ........... 346
Replacing bulbs ................................. 348
Front lamps.................................. 349
Rear lamps ................................... 349
Replacing the wiper blades................ 350
Removing wiper blades ................ 350
Installing wiper blades ................. 350
242 OperationAt the gas station
Replace fuel cap by turning it clockwise
until it audibly engages.
Close the fuel filler flap until you hear
the latch close shut.
Check regularly and before a long trip
1Coolant
2Engine oil
3Brake fluidCoolant
For normal replenishing, use water (pota-
ble water quality). For more information,
see “Coolant” (
page 250) and see “Fu-
els, coolants, lubricants, etc.”
(
page 377).
Engine oil level
For more information on engine oil level,
see “Engine oil” (
page 247).
Brake fluid
iMore information on gasoline can be
found in the Factory Approved Service
Products pamphlet.
Leaving the engine running and the fuel
cap open can cause theú malfunc-
tion indicator lamp (USA only) or
the± malfunction indicator lamp
(Canada only) to illuminate.
For more information, see “Practical
hints” (
page 301).
iOpening the hood, see (
page 244).
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks immediately.
Notify an authorized Mercedes-Benz
Center immediately. Do not add brake
fluid as this will not solve the problem.
For more information, see “Practical
hints” (
page 300).
247 Operation
Engine compartment
Closing
Pull the hood upwards in the center,
against the resistance of the gas-filled
spring struts.
Hold the front center part of the hood
with both hands and push it back-
wards. After pushing the hood back-
wards about half-way, you will feel the
hood passing a crest and the resulting
force pulling the hood away from you.
At that point, let go of the hood and let
it fall onto the latches.
The hood should now be locked and en-
tirely closed.
Check that the hood is properly closed.
If the hood is not properly engaged, re-
peat the closing procedure.
Engine oil
The amount of oil your engine needs will
depend on a number of factors, including
driving style. Higher oil consumption can
occur when
the vehicle is new
the vehicle is driven frequently at
higher engine speeds
Engine oil consumption checks should only
be made after the vehicle break-in period.
Oil consumption of the SLR is slightly high-
er than other vehicles. Please check the
engine oil level frequently.
Warning!
G
Be careful that you do not close the hood on
anyone.
!Make sure the rollers at the rear of the
hood are engaged and the guide pins
line up with the guide holes. Otherwise
the hood may be damaged.
!Do not use any special lubricant addi-
tives, as these may damage the drive
assemblies. Using special additives not
approved by Mercedes-Benz may
cause damage not covered by the
Mercedes-Benz Limited Warranty.
248 OperationEngine compartmentChecking the engine oil level
When checking the oil level,
the vehicle must be parked on level
ground
the engine must be at normal operating
temperature (min. 80°C)
Wait for at least 30 seconds with
engine still at idle.
Measure engine oil level with engine
still at idle.The dipstick and the cap are located on the
passenger side in the engine compart-
ment.
1Dipstick
2Filler cap
Pull out dipstick1 and wipe it off.
Reinsert the dipstick fully into the
guide.
Pull out the dipstick again after
3 seconds.
DipstickThe engine oil level must be between the
lower (min) and upper (max) marks.
Top up the engine oil if necessary.iThe difference in level between the up-
per and lower marks represents a
volume of about 2.1 US qt (2.0 l).
249 Operation
Engine compartment
Adding engine oil
Using a rag, unscrew filler cap2 from
filler neck.
Add engine oil as required. Be careful
not to overfill with oil.Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
Screw the filler cap back on filler neck.
You will find further information about en-
gine oil in the “Technical data” section
(
page 378) and (
page 377).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the transmission.
Warning!
G
The filler cap on the filler neck could be hot.
Use a rag when you unscrew the filler cap.
Otherwise you could burn yourself.
!Only use approved engine oils and oil
filters required for vehicles with
Maintenance System. For a listing of
approved engine oils and oil filters,
refer to the Factory Approved Service
Products pamphlet in your vehicle
literature portfolio, or contact an
authorized Mercedes-Benz Center.
Using engine oils and oil filters of
specification other than those
expressly required for the Maintenance
System, or changing of oil and oil filter
at change intervals longer than those
called for by the Maintenance System
will result in engine damage not cov-
ered by the Mercedes-Benz Limited
Warranty.
!Excess oil must be siphoned or drained
off. It could cause damage to the
engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.
292 OperationVehicle careCleaning and care of the vehicle
If you have any questions about proper
care of your SLR, please contact an autho-
rized Mercedes-Benz Center.Depending on body color the characteris-
tic carbon structure of the body surface
may become visible due to high ambient
temperatures and humidity. This phenom-
enon is related to the technology and con-
cept of the vehicle’s body.
While in operation, even while parked, your
vehicle is subjected to varying external
influences which, if gone unchecked, can
attack the paintwork as well as the under-
body and cause lasting damage.
Such damage is caused not only by
extreme and varying climatic conditions,
but also by:
Air pollution
Road salt
Tar
Gravel and stone chipping
To avoid paint damage, you should
immediately remove:
Grease and oil
Fuel
Coolant
Brake fluid
Bird droppings
Insects
Tree resins, etc.
Frequent washing reduces and/or elimi-
nates the aggressiveness and potency of
the above adverse influences.
More frequent washings are necessary to
deal with unfavorable conditions:
near the ocean
in industrial areas (smoke, exhaust
emissions)
during winter operation
You should check your vehicle from time to
time for stone chipping or other damage.
Any damage should be repaired as soon as
possible to prevent corrosion.
Warning!
G
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the partic-
ular container. Always open your vehicle’s
doors or windows when cleaning the inside.
Never use fluids or solvents that are not
designed for cleaning your vehicle.iMercedes-Benz recommends that you
use Mercedes-Benz care products.
These have been specially developed
to suit Mercedes-Benz vehicles and are
state of the art. Mercedes-Benz care
products are available from any
Mercedes-Benz Center.
328 Practical hintsWhat to do if ...Left display
Right display
Possible cause/
consequence
Possible solution
±
Engine
Service
There may be a malfunction in
the
fuel injection system
ignition system
exhaust system
fuel system
Have the engine checked by an authorized
Mercedes-Benz Center immediately.
:
Engine oil pressure
Visit
workshop
There is no oil in the engine.
There is a danger of engine
damage.
Stop your vehicle immediately in a safe location.
Switch off the engine.
Notify an authorized Mercedes-Benz Center
immediately.
!The engine oil level warning should not
be ignored. Extended driving with the
symbol displayed could result in seri-
ous engine damage that is not covered
by the Mercedes-Benz Limited
Warranty.
381 Technical data
Fuels, coolants, lubricants, etc.
Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which pro-
vides:
corrosion protection
freeze protection
boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and corro-
sion protection.
If the antifreeze mixture is effective to
-22°F (-30°C), the boiling point of the cool-
ant in the pressurized cooling system is
reached at approximately 266°F (130°C).
The coolant solution must be used year
round to provide the necessary corrosion
protection and increase in the boil-over
protection. Refer to Maintenance Booklet
for replacement interval.Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance Booklet is only applicable if
MB 325.0 anticorrosion/antifreeze solu-
tion or other Mercedes-Benz approved
products of equal specification (see
Factory Approved Service Products pam-
phlet) are used to renew the coolant con-
centration or bring it back up to the proper
level.
To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze (equivalent to freeze
protection to approximately
- 22°F [-30°C]). If you use a solution that is
more than 55% anticorrosion/antifreeze
(freeze protection to approximately
- 49°F [-45°C]), the engine temperature
will increase due to the lower heat transfer
capability of the solution. Therefore, do not
use more than this amount of anticorro-
sion/antifreeze.If the coolant level is low, water and
MB 325.0 anticorrosion/antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality, con-
sult an authorized Mercedes-Benz Center.