2008 MERCEDES-BENZ CLK350 warning

402 Practical hints
What to do if …?
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Warning!G
Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride com-
fort, wear unevenly, increase stopping dis-
tance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road
debris, potholes etc.

404 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
2Brake WearThe brake pads have reached their
wear limit.Have the brake pads replaced as soon as
possible.
;(USA only)
!(Canada only)
Release
Parking BrakeYou are driving with the parking brake
set.Release the parking brake (page 53).
;(USA only)
3 (Canada only)
Check
Brake Fluid
LevelThere is insufficient brake fluid in the
reservoir.Risk of accident! Stop the vehicle in a safe
location or as soon as it is safe to do so
and notify an authorized Mercedes-Benz
Center. Do not add brake fluid! This will
not solve the problem.
Warning!G
Driving with the message Check Brake
Fluid Level
displayed can result in an ac-
cident. Have your brake system checked im-
mediately. Do not add brake fluid before
checking the brake system. Overfilling the
brake fluid reservoir can result in spilling
brake fluid on hot engine parts and the
brake fluid catching fire. You could be seri-
ously burned.
!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.!Brake pad thickness must be visually
checked by a qualified technician at the intervals
specified in the Maintenance Booklet.

405 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
úVisit workshopThere may be a malfunction in the

fuel injection system

ignition system

exhaust system

fuel system
Have the measuring system checked
at an authorized Mercedes-Benz Cen-
ter.
B Top Up
Coolant
See Operator’s Man.The coolant level is too low.Add coolant (page 328).
If you have to add coolant frequently,
have the cooling system checked at
an authorized Mercedes-Benz Center.
Warning!G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You could be seriously burned.
!Do not ignore the low engine coolant level
warning. Extended driving with the message and
symbol displayed may cause serious engine
damage not covered by the Mercedes-Benz
Limited Warranty.
Do not drive without sufficient amount of coolant
in the cooling system. The engine will overheat,
causing major engine damage.

407 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).
Display symbolDisplay messagePossible cause/consequencePossible solution
•Observe the coolant temperature indicator in
the instrument cluster (
page 28).
If the temperature rises again:
Contact an authorized Mercedes-Benz
Center immediately.
•The cooling fan for the coolant is mal-
functioning.Observe the coolant temperature indicator in the
instrument cluster (
page 28).
Have the fan replaced as soon as possible.
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.
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). Do-
ing so may cause serious engine damage which
is not covered by the Mercedes-Benz Limited
Warranty.

409 Practical hints
What to do if …?
When the message Check oil level at
next refueling.
appears while the engine
is running and at operating temperature,
the engine oil level has dropped to
approximately the minimum level.When this occurs, the warning is at first in-
termittent and then remains on if the oil
level drops further.
Visually check for oil leaks. If there are no
obvious oil leaks, drive to the nearest ser-
vice station to refill the engine oil to the re-
quired level.
For information on approved engine oils,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Center.
Display symbolDisplay messagePossible cause/consequencePossible solution
:Check oil level
at next refueling
.
The engine oil level has dropped to a
critical level.Check the engine oil level
(
page 325) and add oil as required
(
page 327).
If you must add engine oil frequently,
have the engine checked for possible
leaks.
!Engine oil level warnings should not be ig-
nored. Extended driving with the symbol dis-
played could result in serious engine damage
that is not covered by the Mercedes-Benz Limit-
ed Warranty.

416 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
1Restraint System
Malfunction
Service RequiredThe 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 de-
ploy when needed in an accident, which
could result in serious or fatal injury, or it
might deploy unexpectedly and unnecessar-
ily which could also result in injury.

417 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
\Please Engage
Roll-over BarThe roll bars are malfunctioning.Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
[Please Release
Roll-over BarThe roll bars are malfunctioning.Operate the roll bars manually
(
page 430).
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
_ Steering oil
Service RequiredThe steering gear oil level is too low. There
is a danger of steering gear damage.Have the system checked at 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 an authorized Mercedes-Benz
Center as soon as possible.

419 Practical hints
What to do if …?
Display symbolDisplay messagesPossible cause/consequencePossible solution
HPlease correct
the tire pressure.The tire pressure is too low in one
or more tires.Check and correct tire inflation pressure as
required (
page 344).
Tire Pressure
Caution
Tire DefectOne or more tires are deflating.Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
If necessary, change the wheel (page 452).
Tire Pressure
Check TiresThe tire pressure in one or more
tires is already below the mini-
mum value.Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Check and adjust tire pressure as required
(
page 344).
If necessary, change the wheel (page 452).
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Warning!G
Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride com-
fort, wear unevenly, increase stopping dis-
tance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road
debris, potholes etc.