2003 MERCEDES-BENZ CLK55AMG COUPE warning

290 Practical hintsWhat 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).
Display
Possible cause
Suggested solution
Ï
Coolant
Stop, engine off!
The coolant is too hot.

Stop the vehicle and turn off the en-
gine.

Only start the engine again after the
message disappears. You could other-
wise damage the engine.
Warning!
G
Driving when your engine is badly overheat-
ed 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 and can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until it
cools 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.

295 Practical hints
What to do if …?
When the
Engine oil – Visit workshop!

message appears while the engine is run-
ning and at operating temperature, the en-
gine oil level has dropped to approximately
the minimum mark on the dipstick.
When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.If no oil leaks are noted, continue to drive
to the nearest service station where the
engine oil should be topped to the “full”
mark on the dipstick with an approved oil.
Display
Possible cause
Suggested solution
:
Engine oil level
Reduce oil level!
You have added too much engine oil.
There is a risk of damaging the engine or
the catalytic converter.

Have oil siphoned. Observe all legal re-
quirements with respect to its dispos-
al.
Engine oil
Visit workshop!
The engine oil has dropped to a critical
level.

Check the engine oil level
(page 254) and add oil as required.

If you must add engine oil frequently,
have the engine checked for possible
leaks.
There is water in the oil.

Have the oil checked.
Engine oil level
Visit workshop!
The measuring system is malfunctioning.

Have the measuring system checked
by an authorized Mercedes-Benz Cen-
ter.!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in se-
rious engine damage that is not cov-
ered by the Mercedes-Benz Limited
Warranty.

300 Practical hintsWhat to do if …?Display
Possible cause
Suggested solution
<
Front passenger
seat belt
Please fasten belt!
The display reminds you and your passen-
gers to fasten seat belts.

Fasten the seat belts.
Driver’s seat belt
Fasten seat belt!
The display reminds you and your passen-
gers to fasten seat belts.

Fasten the seat belts.
_
Steering oil
Visit workshop!
The steering gear oil level is too low.
There is a danger of steering gear dam-
age.

Have the system checked by an autho-
rized Mercedes-Benz Center.
Warning!
G
If the level of steering gear oil in reservoir is
too low, the steering power assistance could
fail. Much greater effort will then be needed
to turn the steering wheel.
Do not add steering oil without checking the
steering system.
Do not drive the vehicle. Have the system
checked at your authorized Mercedes-Benz
Center as soon as possible.

303 Practical hints
What to do if …?
Display
Possible cause
Suggested solution
#
Undervoltage
Charge battery
The battery has insufficient voltage.

Start the engine (
page 43).
Undervoltage
Switch off
consumers
The battery has insufficient voltage.

Turn off unnecessary electrical con-
sumers.
Cruise Control
Visit workshop!
Cruise control or Distronic* is malfunc-
tioning.

Have cruise control or Distronic*
checked by an authorized
Mercedes-Benz Center.
1
Restraint system
defective
Visit workshop!
The system is malfunctioning.

Drive with added caution to the near-
est authorized Mercedes-Benz Center.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the
SRS may not be activated when needed in
an accident, which could result in serious or
fatal injury, or it might deploy unexpectedly
and unnecessarily which could also result in
injury.

306 Practical hintsWhere will I find...?3Arrow
4Minispare wheel
5Vehicle tool kit storage well casing
6Vehicle tool kit
Wheel wrench
Vehicle jackVehicle jackThe vehicle jack is stored in the space un-
derneath the trunk floor together with the
vehicle tool kit in the vehicle tool kit stor-
age well casing.

Remove the vehicle jack from its com-
partment.

Push the crank handle up.
iArrow3 on vehicle tool kit storage well
casing5 must point in the direction of
travel. Otherwise you cannot place the
storage well casing on top and secure
the Minispare wheel with retaining
screw 1 (
page 305).
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on a level surface. Make sure that the jack
arm is fully seated in the jack take-up brack-
et. Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.

308 Practical hintsWhere will I find...?Storing the Minispare wheel
Place Minispare wheel3 in wheel well.

Place vehicle tool kit storage well
casing4 over the Minispare wheel. Be
sure that the arrow 2 on storage well
casing4 points in the direction of trav-
el.

Place storage well casing
(page 305) over the vehicle tool kit
storage well casing 4 and turn the re-
taining screw (
page 305) clockwise
as far as it will go to secure the
Minispare wheel.
iThe arrow 2 on vehicle tool kit storage
well casing4 must point in the direc-
tion of travel, otherwise you cannot
place the storage well casing
(page 305) on top and secure the
Minispare wheel with the retaining
screw (
page 305).
!To prevent damage, always disengage
trunk floor handle from upper edge of
trunk and lower trunk floor before clos-
ing the trunk lid.
Warning!
G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted.
The Minispare wheel should only be used
temporarily, and should be replaced with a
regular road wheel as quickly as possible.

309 Practical hints
Where will I find...?
In the case of a flat tire, you may tempo-
rarily use the Minispare wheel when ob-
serving the following restrictions:

Do not exceed a vehicle speed of
50 mph (80 km/h).


Drive to the nearest tire repair facility
to have the flat tire repaired or re-
placed as appropriate.


Do not operate vehicle with more than
one Minispare wheel mounted.
More information can be found in the
“Technical data” section (
page 345).Minispare wheel bolts
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel or other
steel rims
!Wheel bolts2 must be used when
mounting the Minispare wheel. The use
of any wheel bolts other than wheel
bolts 2 for the Minispare will physically
damage the vehicle's brakes.
Warning!
G
Be sure to use the original length wheel
bolts when remounting the original wheel af-
ter it has been repaired.

312 Practical hintsUnlocking/locking in an emergencyChanging batteries
If the batteries in the SmartKey or the
SmartKey with KEYLESS-GO* are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Center.
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.SmartKey /
SmartKey with KEYLESS-GO*
1Mechanical key
2Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.

Remove mechanical key1
(page 310).

Insert the mechanical key in side open-
ing and push gray slide.
The battery compartment is unlatched.

Pull the battery compartment out of the
key housing in direction of arrow.

Remove the batteries.
3Battery
4Contact spring
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen changing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.