display MERCEDES-BENZ CLS 2010 Owners Manual
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Engine
Display messages
Possible causes/consequences and
X Solutions=
(USA only)
;
(Canada
only) Engine
Service There may be a malfunction in
R
the fuel management system
R the ignition system
R the exhaust system
R the fuel system
X Have the engine checkedas soon as possible at an
authorized Mercedes-Benz Center. ; Display
Malfunctio
n
Service
Required Certain electronic systems are unable to relay information to
the control system. The coolant temperature display or the
tachometer may have failed.
X
Have the electronic systems checked at an authorized
Mercedes-Benz Center. + Top Up
Coolant
See
Operator’s
Man. The coolant level is too low.
X
Add coolant (Y page 180).
X If you have to add coolant frequently, have the cooling
system checked at an authorized Mercedes-Benz Center. G
Warning!
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. Vehicle status messages in the multifunction display
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Display messages
Possible causes/consequences and
X Solutions? Coolant
Stop
Vehicle,
turn
engine
off. The coolant is too hot.
X
Stop the vehicle immediately as soon as it is safe to do so.
X Turn off the engine immediately.
X Engage the parking brake.
X Only start the engine again after the message disappears.
You could otherwise damage the engine.
X Observe the coolant temperature indicator in the
instrument cluster.
X If the temperature rises again: Contact an authorized
Mercedes-Benz Center immediately.
During severe operation conditions and stop-and-go city
traffic, the coolant temperature may rise close to 248‡
(120†). G
Warning!
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 opening the
engine 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‡ (120†).
Doing so may cause serious damage which is not covered by the Mercedes-Benz Limited
Warranty. 244
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Display messages
Possible causes/consequences and
X Solutions? Coolant
Stop
Vehicle,
turn
engine
off. The poly-V-belt could be broken.
X
Stop the vehicle immediately as soon as it is safe to do so.
X Turn off the engine immediately.
X Check the poly-V-belt.
X If it is broken: Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.
X If it is intact: Do not continue to drive the vehicle with this
message displayed. Doing so could result in serious engine
damage that is not covered by the Mercedes-Benz Limited
Warranty.
X Observe the coolant temperature indicator in the
instrument cluster.
X Drive to the nearest authorized Mercedes-Benz Center
immediately. ? The radiator cooling fan is malfunctioning.
X
Observe the coolant temperature indicator in the
instrument cluster.
If
the coolant temperature is below 248‡ (120†), you may
continue driving to an authorized Mercedes-Benz Center.
X Avoid placing heavy loads on the engine (e.g. by driving
uphill) as well as stop-and-go traffic.
X Have the fan replaced as soon as possible. # The battery is no longer charging.
Possible causes:
R
alternator malfunctioning
R broken poly-V-belt
R a malfunction in the electronic system
X Stop immediately in a safe location or as soon as it is safe
to do so and check the poly-V-belt.
X If it is broken: Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.
X If it is intact: Drive to the nearest authorized Mercedes-
Benz Center immediately. Adjust driving to be consistent
with reduced braking responsiveness. Vehicle status messages in the multifunction display
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Display messages
Possible causes/consequences and
X Solutions# Low
Voltage
Start
Engine The battery has insufficient voltage.
X
Start the engine. 4 Check oil
level at
next
refueling. The engine oil has dropped to a critical level.
X
Check the engine oil level ( Y page 179) and add engine oil
as required ( Y page 180).
X If you must add engine oil frequently, have the engine
checked for possible leaks. If 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.
The message will be stored in the vehicle
status message memory after you have
cleared it from the multifunction display.
Visually check for oil leaks. If there are no
obvious oil leaks, drive to the nearest service
station to refill your engine oil to the required
level. For information on approved engine oils
contact
an authorized Mercedes-Benz Center
or visit www.mbusa.com (USA only).
! Engine oil level warnings should not be
ignored. Extended driving with the symbol
displayed could result in serious engine
damage that is not covered by the
Mercedes-Benz Limited Warranty. Display messages
Possible causes/consequences and
X SolutionsC The fuel level is low.
X
Refuel at the next gas station. 7 Reserve
Fuel The fuel level has dropped below the reserve mark.
X
Refuel at the next gas station. 7 Gas Cap
Is Open A loss of pressure has been detected in the fuel system. The
fuel cap may not be closed properly or the fuel system may
be leaking.
X
Check the fuel cap ( Y page 177).
X If it is not closed properly: Close the fuel cap.
X If it is closed properly: Have the fuel system checked at
an authorized Mercedes-Benz Center. ¸ Replace
Air Filter The air filter is clogged.
X
Have the air filter checked at an authorized Mercedes-Benz
Center. 246
Vehicle status messages in the multifunction display
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Lamps
Display messages
Possible causes/consequences and
X Solutionsb Active
Headlamps
Inoperativ
e The active Bi-Xenon headlamp system is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Active
Headlamps
Auxiliary
Bulb On The active Bi-Xenon headlamps are malfunctioning. Another
light is being used.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Reverse
Lamp Left
or
Reverse
Lamp Right The left or right backup lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Brake-/
Tail Lamp
Left
Auxiliary
Bulb On
or
Brake-/
Tail Lamp
Right
Auxiliary
Bulb On The left or right brake/tail lamp is malfunctioning. This
message will only appear if all LEDs have stopped working.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b 3rd Brake
Lamp The high-mounted brake lamp is malfunctioning. This
message will only appear if all LEDs have stopped working.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Front
Foglamp
Left
or
Front
Foglamp
Right The left or right front fog lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. Vehicle status messages in the multifunction display
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Display messages
Possible causes/consequences and
X Solutionsb Marker
Lamp
Front Left
or
Marker
Lamp
Front
Right The front left side or right side marker lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Parking
Lamp
Front
Left
Auxiliary
Bulb On
or
Parking
Lamp
Front
Right
Auxiliary
Bulb On The left or right front parking lamp is malfunctioning. A
substitute bulb is being used.
X
Halogen headlamp: Replace the bulb as soon as possible
(Y page 266).
X Bi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible. b High Beam
Left
or
High Beam
Right The left or right high-beam lamp is malfunctioning.
X
Replace the bulb as soon as possible (Y page 266). b License
Plate
Lamp Left
or
License
Plate
Lamp Right The left or right license plate lamp is malfunctioning.
X
Replace the bulb as soon as possible (Y page 266). b AUTO-
Light
Inoperativ
e The light sensor is malfunctioning. The headlamps come on
automatically.
X
Contact an authorized Mercedes-Benz Center as soon as
possible.
To switch off the headlamps (U.S. vehicles only):
X In the control system, set daytime running lamp mode to
manual
(Y page 121).
X Switch off the headlamps using the exterior lamp switch
(Y page 87). 248
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Display messages
Possible causes/consequences and
X Solutionsb Low Beam
Left
or
Low Beam
Right The left or right low-beam lamp is malfunctioning.
X
Halogen headlamp: Replace the bulb as soon as possible
(Y page 266).
X Bi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible. b Rear Left
Foglamp The rear fog lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Switch
Off Lights You have removed the SmartKey from the starter switch,
opened the driver’s door and left the headlamps on or
removed the SmartKey with KEYLESS-GO from the vehicle
and left the headlamps on.
X
Turn the exterior lamp switch to $ or Ã
(Y page 87).
or
X With the rear fog lamp switched on:
Push in the exterior
lamp switch to its stop. b Tail Lamp
Left
Auxiliary
Bulb On
or
Tail Lamp
Right
Auxiliary
Bulb On The left or right tail lamp is malfunctioning. A substitute bulb
is being used.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Cornering
Lamp Left
or
Cornering
Lamp Right The left or right corner-illuminating front fog lamp is
malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. b Rear Left
Turn
Signal
or
Rear
Right
Turn
Signal The left or right rear turn signal lamp is malfunctioning.
X
Contact an authorized Mercedes-Benz Center as soon as
possible. Vehicle status messages in the multifunction display
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Display messages
Possible causes/consequences and
X Solutionsb Front
Left Turn
Signal
or
Front
Right
Turn
Signal The left or right front turn signal lamp is malfunctioning.
X
Replace the bulb as soon as possible (Y page 266). b Left
Mirror
Turn
Signal
or
Right
Mirror
Turn
Signal The turn signal in the left or right exterior rear view mirror is
malfunctioning.
This message will only appear if all LEDs have
stopped working.
X Contact an authorized Mercedes-Benz Center as soon as
possible. Tires
Display messages
Possible causes/consequences and
X Solutionsh Please
correct
the tire
pressure. The tire inflation pressure is too low in at least one tire.
or
The tire inflation pressure of the individual tires differ from
each other significantly.
X
Check and correct tire inflation pressure as required
(Y page 185). h Tire
Pressure
Caution
Tire
Defect At least one tire is deflating.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
X If necessary, change the wheel (Y page 271). h Tire
Pressure
Check
Tires The tire inflation pressure in at least one tire is significantly
below the reference value.
X
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
X Check and adjust tire inflation pressure as required.
X If necessary, change the wheel (Y page 271). 250
Vehicle status messages in the multifunction display
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Brake
Problem
Possible causes/consequences and
X Solutions!
The yellow ABS
indicator lamp
comes on while
the engine is
running. The ABS has detected a malfunction and switched off. The BAS,
the ESP
®
, the EBP, and the PRE-SAFE ®
system are also switched
off.
The brake system is still functioning normally but without the
systems specified above available.
If the ABS control unit is malfunctioning, other systems such as
the
navigation system or the automatic transmission may also be
malfunctioning.
X Continue driving with added caution. Wheels may lock during
hard braking, reducing steering capability.
X Adjust driving to be consistent with reduced braking
responsiveness.
X Read and observe messages that may appear in the
multifunction display
(Y page 228).
X Have the system checked at an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions increases the risk of an
accident. !
The yellow ABS
indicator lamp
comes on while
the engine is
running. The ABS has switched off due to insufficient power supply.
The battery might not be charged sufficiently.
When the voltage is above the required value again, the ABS is
operational again. The ABS indicator lamp should go out.
X
Continue driving with added caution. Wheels may lock during
hard braking, reducing steering capability.
X Adjust driving to be consistent with reduced braking
responsiveness.
X Read and observe messages that may appear in the
multifunction display
(Y page 228).
X If the ABS indicator lamp does not go out: Have the alternator
and the battery checked. $ (USA only)
J (Canada only)
The red brake warning
lamp comes on while
driving and an acoustic
warning sounds. You are driving with the parking brake engaged.
X
Release the parking brake. 252
What to do if …
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Problem
Possible causes/consequences and
X Solutions$ (USA only)
J (Canada only)
The red brake warning
lamp comes on while
the engine is running
and an acoustic
warning sounds. There is insufficient brake fluid in the reservoir.
Risk of accident!
X
Do not drive any further. Stop the vehicle in a safe location as
soon as it is safe to do so.
X Engage the parking brake.
X Read and observe messages that may appear in the
multifunction display
(Y page 228).
X Contact an authorized Mercedes-Benz Center.
Do not add brake fluid! This will not solve the problem. G
Warning!
Driving with the brake warning lamp
illuminated can result in an accident. Have
your
brake system checked immediately if the
brake warning lamp stays on. 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 can be
seriously 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.
Safety systems Problem
Possible causes/consequences and
X Solutions7
The red seat belt
telltale comes
on for a
maximum of
6 seconds after
starting the
engine. The seat belt telltale reminds you and your passengers to fasten
your seat belts before driving off.
X
Fasten your seat belts.
Regardless of whether the seat belts are fastened or not, the seat
belt telltale always comes on and remains lit for 6 seconds after
starting the engine. 7
The red seat belt
telltale comes
on. In addition
you hear a
warning chime
for a maximum
of 6 seconds
after
starting the
engine. You have forgotten to fasten your seat belt.
X
Fasten your seat belt.
The warning chime stops sounding. What to do if …
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