engine MERCEDES-BENZ GLK SUV 2008 Repair Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2008, Model line: GLK SUV, Model: MERCEDES-BENZ GLK SUV 2008Pages: 261, PDF Size: 8.67 MB
Page 187 of 261
Display messages
Possible causes/consequences and
X
X Solutions G
Risk of accident
ABS, ESP ®
, BAS, PRE-SAFE ®
*, hill start assist and ESP ®
trailer
stabilisation are unavailable due to undervoltage. The d
warning lamp also lights up in the instrument cluster.
The brake system continues to function normally, but without
the functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop. ! ABS and
ESP inop-
erative
See Own-
er's Man-
ual
G
Risk of accident
ABS, ESP ®
, BAS, PRE-SAFE ®
*, hill start assist and ESP ®
trailer
stabilisation are unavailable due to a malfunction. The d
warning lamp also lights up in the instrument cluster.
The brake system continues to function normally, but without
the functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop. # The battery is not being charged. A warning tone also sounds.
Possible causes are:
R
a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull over and stop the vehicle safely, paying attention to
road and traffic conditions and leave the engine running.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the V-belt is torn:
! Do not continue driving. The engine could otherwise over-
heat.
X Switch off the engine.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Visit a qualified specialist workshop. 184 Display
messagesPractical advice
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Page 189 of 261
Display messages
Possible causes/consequences and
X
X Solutions à a
with 4
buttons:
inopera-
tive
a with
12 buttons:
inopera-
tive DSR is deactivated due to a malfunction.
X
Have DSR checked at a qualified specialist workshop. ? a
with 4
buttons:
Stop vehi-
cle Engine
off
a with
12 buttons:
Coolant
Stop vehi-
cle Switch
engine off The coolant is too hot. In addition, the
?warning lamp in
the instrument cluster lights up and a warning tone sounds.
X Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Make sure that the air supply to the radiator is not blocked,
e.g. by slush.
X Wait until the display message disappears before restarting
the engine. Otherwise, there is a risk of engine damage.
X Observe the coolant temperature gauge.
X If the coolant temperature increases again, visit a qualified
specialist workshop immediately. The poly-V-belt may have torn. A warning tone also sounds.
X
Pull over and stop the vehicle safely and switch off the
engine, paying attention to road and traffic conditions.
X Check the poly-V-belt.
X If the poly-V-belt is not damaged: do not start the engine
again until the display message goes out. Otherwise, there
is a risk of engine damage.
X If the poly-V-belt is torn: do not continue driving. Consult
a qualified specialist workshop. ? The engine fan is faulty.
X
If the coolant temperature is less than 120 †, you can
continue driving to the nearest qualified specialist work-
shop.
X Avoid subjecting the engine to heavy loads (e.g. driving in
mountainous terrain) and stop-and-go driving. 186 Display
messagesPractical advice
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Page 190 of 261
Display messages
Possible causes/consequences and
X
X Solutions + Top up
coolant
See Own-
er's Man-
ual The coolant level is too low.
X
Top up the coolant, observing the warning notes before
doing so (Y page 149).
X Have the engine cooling system checked at a qualified spe-
cialist workshop if the coolant needs topping up more often
than usual. ! Clean the
fuel fil-
ter There is water in the fuel filter. The water must be drained
off
29
.
X Visit a qualified specialist workshop. b a
with 4
buttons:
Left cor-
ner. light
or
Right cor-
ner. light
a with
12 buttons:
Left cor-
nering
light
or
Right cor-
nering
light The left-hand or right-hand cornering lamp* is faulty.
X
Visit a qualified specialist workshop. 29
Only for certain vehicles. Display
messages
187Practical advice
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Page 198 of 261
Display messages
Possible causes/consequences and
X
X Solutions b a
with 4
buttons:
Malfunc-
tion
a with
12 buttons:
Malfunc-
tion See
Owner's
Manual The exterior lighting is faulty.
X
Visit a qualified specialist workshop. ¸ a
with 4
buttons:
Replace
air
cleaner
a with
12 buttons:
Replace
air
cleaner The engine air filter must be replaced
30
.
X Visit a qualified specialist workshop. 4 a
with 4
buttons:
Check eng.
oil level
a with
12 buttons:
Check eng.
oil lev.
when next
refuelling The engine oil level has dropped to a critical level. A warning
tone also sounds.
X
Check the engine oil level ( Ypage 148).
X If necessary, top up the engine oil.
X Have the engine checked for leaks if the engine oil needs
topping up more often than usual. + a
with 4
buttons:
You need a
new key
a with
12 buttons:
Replace
key The key must be replaced.
X
Visit a qualified specialist workshop. + Key does
not belong
to vehicle You have put the wrong key in the ignition lock.
X
Use the correct key. 30
Only for certain vehicles. Display
messages
195Practical advice
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Page 204 of 261
Warning and indicator lamps in the instrument cluster
Problem
Possible causes/consequences and
X
X Solutions !
The yellow ABS
warning lamp
comes on while
the engine is
running. G
Risk of accident
ABS (Anti-lock Brake System) is deactivated due to a fault. There-
fore, ESP ®
(Electronic Stability Program), BAS (Brake Assist), PRE-
SAFE ®
*, hill start assist and ESP ®
trailer stabilisation are also
deactivated.
The brake system continues to function normally, but without
electronic support. Therefore, the wheels could lock if you brake
hard.
X Drive on carefully.
X Observe the additional messages in the multi-function display
(Y page 176).
X Visit a qualified specialist workshop. d
The yellow ESP ®
warning lamp
flashes while the
vehicle is in
motion. G
Risk of accident
ESP ®
or traction control has intervened because there is a risk of
skidding or at least one wheel has started to spin.
Cruise control* is switched off.
X Only depress the accelerator pedal as far as necessary when
pulling away.
X Release the accelerator pedal while you are driving.
X Adapt your driving style to suit the road and weather conditions.
X Do not deactivate ESP ®
.
Exceptions: (Y page 53) d
The yellow ESP ®
warning lamp
flashes while the
vehicle is in
motion. At least one wheel is spinning and ETS (Electronic Traction Sys-
tem) is deactivated to prevent the brakes on the drive wheels
overheating.
X
Observe the additional messages in the multi-function display
(Y page 176).
ETS switches back on again as soon as the brakes have cooled
down. The display message disappears and the dwarning
lamp goes out. d
The yellow ESP ®
warning lamp is
lit while the
engine is run-
ning. G
Risk of accident
ESP ®
is deactivated. ESP ®
and ESP ®
trailer stabilisation will not
stabilise the vehicle if it starts to skid or if a wheel starts to spin.
X Reactivate ESP ®
.
Exceptions: (Y page 53)
X Adapt your driving style to suit the road and weather conditions. Troubleshooting
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Page 205 of 261
Problem
Possible causes/consequences and
X XSolutions d
The yellow ESP ®
warning lamp is
lit while the
engine is run-
ning. In addition,
a message
appears in the
multi-function
display. G
Risk of accident
ESP ®
is unavailable due to a malfunction. ESP ®
and ESP ®
trailer
stabilisation will not stabilise the vehicle if it starts to skid or if a
wheel starts to spin.
X Observe the additional messages in the multi-function display
(Y page 176).
X Drive on carefully.
X Visit a qualified specialist workshop. 6
The red SRS
warning lamp is
lit while the
engine is run-
ning. G
Risk of injury
There is a malfunction in the restraint system. The airbags or belt
tensioners may either be triggered unintentionally or, in the event
of an accident, not be triggered at all.
X Visit a qualified specialist workshop immediately. J
The red brake
system warning
lamp comes on
while you are
driving. A warn-
ing tone also
sounds. You are driving with the parking brake applied.
X
Release the parking brake.
The warning lamp goes out and the warning tone ceases. J
The red brake
system warning
lamp comes on
while the engine
is running. A
warning tone
also sounds. G
Risk of accident
There is insufficient brake fluid in the fluid reservoir.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Consult a qualified specialist workshop immediately.
X Observe the additional messages in the multi-function display
(Y page 176).
Do not top up the brake fluid. This will not rectify the fault. ?
The red coolant
warning lamp
lights up while
the engine is
running and the
coolant temper-
ature gauge is at
the start of the
scale. The temperature sensor for the coolant temperature gauge is
faulty.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
X Consult a qualified specialist workshop. 202 TroubleshootingPractical advice
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Page 206 of 261
Problem
Possible causes/consequences and
X
X Solutions ?
The red coolant
warning lamp
comes on while
the engine is
running. A warn-
ing tone also
sounds. The coolant temperature has exceeded 130 †. The airflow to the
radiator may be blocked or the coolant level may be too low.
The engine is not being cooled sufficiently and may be damaged.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Allow the engine and coolant to cool.
X Make sure that the air supply to the radiator is not blocked, e.g.
by slush.
X Check the coolant level (Y page 149). Observe the warning
notes.
X If necessary, top up the coolant.
X Have the engine cooling system checked at a qualified specialist
workshop if the coolant needs topping up more often than usual.
If the coolant level is correct, the electric radiator fan may be
faulty.
X Do not continue driving under any circumstances.
X Consult a qualified specialist workshop. ;
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. Vehicles with a diesel engine: the fuel tank has been run dry.
X
Start the engine three to four times after refuelling.
Emergency running mode is cancelled. The vehicle need not be
checked. ;
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. There may be a fault, for example
R
in the engine management
R in the ignition system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
The emission limit values may be exceeded and the engine can
run in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop. 7
The red seat belt
warning lamp
lights up for 6
seconds after
the engine starts
up31
. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X Fasten your seat belt (Y page 70). Troubleshooting
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Problem
Possible causes/consequences and
X XSolutions 7
After the engine
starts, a warning
tone sounds for
up to 6 sec-
onds31
. G
Risk of injury
The driver's seat belt is not fastened.
X Fasten your seat belt (Y page 70).
The warning tone ceases. 7
The red seat belt
warning lamp
lights up after
the engine
starts, as soon
as the driver's
door or the
front-passenger
door is closed. G
Risk of injury
The driver or front passenger have not fastened their seat belt.
X Fasten your seat belt (Y page 70).
The warning lamp goes out. G
Risk of injury
There are objects on the front-passenger seat
X Remove the objects from the front-passenger seat and stow
them safely.
The warning lamp goes out. 7
The red warning
lamp flashes and
an intermittent
audible warning
sounds. G
Risk of injury
The driver or front passenger have not fastened their seat belt.
and you are driving faster than 25 km/h or have briefly driven
faster than 25 km/h.
X Fasten your seat belt (Y page 70).
The warning lamp goes out and the intermittent audible warning
ceases. G
Risk of injury
There are objects on the front-passenger seat and you are driving
faster than 25 km/h or have briefly driven faster than 25 km/h.
X Remove the objects from the front-passenger seat and stow
them safely.
The warning lamp goes out and the intermittent audible warning
ceases. 8
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. The fuel level has fallen below the reserve range.
X
Refuel at the nearest filling station. 31
Only for certain countries. 204 TroubleshootingPractical advice
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Warning tones
Problem
Possible causes/consequences and
X
X Solutions The anti-theft warning
alarm* is triggered. You have opened the vehicle with the anti-theft alarm system still
activated*.
X Switch off the alarm (Y page 55). You hear a warning
tone. A message appears in the multi-function display.
X
See the explanations for the display message (Y page 176). You are driving with the parking brake applied.
X
Release the parking brake. The lights are still switched on when you leave the vehicle.
X
Turn the light switch to $orc.
or
X If the rear foglamp is switched on: press the light switch in to
the stop. G
Risk of injury
The driver or front passenger has not fastened their seat belt
X Fasten your seat belt (Y page 70). Accident
Problem
Possible causes/consequences and
X
X Solutions Fuel is leaking from the
vehicle.
G
Risk of fire
The fuel line or the fuel tank has been damaged. The leaking fuel
creates a risk of fire or explosion.
X Switch off the ignition immediately.
X Remove the ignition key.
Do not restart the engine under any circumstances. The leaking
fuel creates a risk of fire or explosion.
X Consult a qualified specialist workshop. You are unable to
determine the extent of
the damage.
X
Consult a qualified specialist workshop. You cannot detect any
damage.
X
Start the engine as normal. Troubleshooting
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Problem
Possible causes/consequences and
X XSolutions The NECK-PRO head
restraints on the driv-
er's and the front-pas-
senger's seats have
been triggered. Your vehicle has been involved in a rear-end collision.
X
Reset the NECK-PRO head restraints (Y page 215).Fuel and fuel tank
Problem
Possible causes/consequences and
X XSolutions Fuel is leaking from the
vehicle.
G
Risk of explosion or fire
The fuel line or the fuel tank is defective.
X Turn the key to position 0(Y page 61) in the ignition lock imme-
diately and remove it.
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The fuel filler flap can-
not be opened. The fuel filler flap is not released.
or
The key batteries are discharged.
X
Unlock the vehicle using the emergency key element
(Y page 213).
X Open the tailgate (Y page 60).
X Manually unlock the fuel filler flap via the emergency release
(Y page 215). The fuel filler flap is released, but the opening mechanism is jam-
med.
X
Release the fuel filler flap by hand (Y page 215).
X Consult a qualified specialist workshop. 206 TroubleshootingPractical advice
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