Page 201 of 293

Display
messages 198 Display messages Possible cause/consequence Possible solution
ESP unavailable See
Owner's Manual
G
Risk of accident
ESP ®
is unavailable due to undervoltage.
It is possible that the battery is not being
charged.
BAS, 4ETS and the tyre pressure moni-
tor* have also been deactivated.
The brake system continues to function
normally, but without the functions listed
above. X
Drive on carefully.
X Visit a qualified specialist workshop immedi-
ately.
X Observe the additional messages in the multi-
function display ( Ypage 98). Vehicle Consult workshop The operating reliability of the automatic
transmission can no longer be fully guar-
anteed. X
Drive on carefully.
X Have the transmission checked immediately at
a qualified specialist workshop. Please correct Check tyres
G
Risk of accident
The tyre pressure monitor* has detected
a significant pressure loss. X
Stop the vehicle without making any sudden
steering or braking manoeuvres. Pay attention
to traffic conditions as you do so.
X Check the tyres.
X Check the tyre pressure and correct it, if nec-
essary ( Ypage 164).
X Repair or change the faulty wheel as neces-
sary ( Ypage 244).
X Then restart the tyre pressure monitor* once
the tyre pressure is correct (Y page 166).Practical advice
* optional
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Display
messages 201Display messages Possible cause/consequence Possible solution
# The battery is not being charged. Possible
ca
uses are:
R a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics X
Stop immediately and safely when traffic con-
ditions allow and check the poly-V-belt.
X If it has torn: do not drive on. Contact the
nearest qualified specialist workshop.
X If it is not damaged: have the vehicle checked
immediately at a qualified specialist workshop. # The battery voltage is too low. X
Start the engine.
X Switch off consumers that are not required. 2 Brake wear The brake pads/linings have reached
their wear limit. X
Have the brake pads/linings replaced as soon
as possible at a qualified specialist workshop. 3 Check brake fluid
level G
Risk of accident
There is insufficient brake fluid in the
brake fluid reservoir. X
Pull over as soon as it is safe to do so.
X Do not continue driving under any circumstan-
ces.
X Consult the nearest qualified specialist work-
shop.
X Do not top up the brake fluid. This will not rec-
tify the malfunction. 3 Electronic brake
force distribution
Consult workshop G
Risk of accident
Electronic brake force distribution has
been switched off due to a malfunction.
BAS is also inoperative.
The brake system is still available with
complete brake boosting effect. X
Drive on carefully.
X Visit a qualified specialist workshop immedi-
ately. Practical advice
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Display
messages 202 Display messages Possible cause/consequence Possible solution
! Release parking
brake Yo
u are driving with the parking brake
applied. X
Release the parking brake. 1 Restraint system
malfunction Con-
sult workshop
G
Risk of injury
The restraint systems are malfunctioning. X
Visit a qualified specialist workshop immedi-
ately. [ Clean fuel filter There is water in the fuel filter. The water
must be drained off. X
Visit a qualified specialist workshop. § TC shift procedure
cancelled The shift process was not carried out. X
Repeat the shift process. § TC shift condi-
tions not fulfil-
led You have not fulfilled one or more condi-
tions required to shift the transfer case. X
Repeat the shift process. § TC in neutral The transfer case is in the neutral position. X
Shift the transfer case to HIGHorLOW as
desired. § Transfer case Con-
sult workshop There is a malfunction in the transfer case. X
Do not shift the transfer case.
X Have the vehicle checked as soon as possible
at a qualified specialist workshop. Practical advice
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Display
messages 204 Display messages Possible cause/consequence Possible solution
. Dipped-beam, left
or
Dipped-beam, right The right-hand or left-hand dipped-beam
headlamp is fa
ulty. X
Visit a qualified specialist workshop. . AUTO lights inop-
erative The light sensor is faulty. Constant head-
lamp mode is switched on. X
Switch the lights to manual control in the on-
board computer (Y page 107).
X Switch the lights on and off using the light
switch. . Trailer turn sig-
nal left
or
Trailer turn sig-
nal right The left-hand or right-hand trailer turn sig-
nal is faulty. X
Replace the bulb. . Trailer brake lamp The left-hand or right-hand trailer brake
lamp is faulty. X
Replace the bulb. . Trailer tail lamp
left
or
Trailer tail lamp
right The left-hand or right-hand trailer tail lamp
is faulty. X
Replace the bulb. . Trailer reversing
lamp The left-hand or right-hand trailer revers-
ing lamp is faulty. X
Replace the bulb. Practical advice
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Display
messages 205Display messages Possible cause/consequence Possible solution
. Turn signal rear
left Back-up bulb
on
or
Turn signal rear
right Back-up bulb
on The rear left-hand or rear right-hand turn
signal is fa
ulty. Another lamp has taken
over its function. X
Replace the bulb (Y page 235). . Turn signal left
mirror
or
Turn signal right
mirror The turn signal in the left-hand or right-
hand exterior mirror is faulty. This mes-
sage will only appear if all LEDs have
failed. X
Visit a qualified specialist workshop. . Turn signal front
left Back-up bulb
on
or
Turn signal front
right Back-up bulb
on The front left-hand or right-hand turn sig-
nal is faulty. Another lamp has taken over
its function. X
Replace the bulb (Y page 235). . Brake lamp left
or
Brake lamp right The left-hand or right-hand brake lamp is
faulty. X
Replace the bulb (Y page 235). . 3rd brake lamp The third brake lamp is faulty. This mes-
sage will only appear if all LEDs have
failed. X
Visit a qualified specialist workshop. Practical advice
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Troubleshooting
212 Warning and indicator lamps in the instrument cluster
Problem Possible cause/consequence Suggested solutions
-
Theyellow ABS warning
lamp comes on while the
engine is running. G
Risk of accident
ABS has been deactivated due to
a malfunction. ESP ®
, BAS and the
tyre pressure monitor* are there-
fore also deactivated.
The brake system continues to
function normally, but without
electronic support. Therefore,
the wheels could lock if you brake
hard.
If the ABS control unit is faulty,
there is also a possibility of mal-
functions in other systems, such
as the ultrasonic reversing aid ®
,
the navigation system ®
or the
automatic transmission. X
Drive on carefully.
X Observe the additional messages in the multi-function display
(Y page 194).
X Visit a qualified specialist workshop as soon as possible. Practical advice
* optional
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Troubleshooting
213Problem Possible cause/consequence Suggested solutions
-
Theyellow ABS warning
lamp comes on while the
engine is running. G
Risk of accident
ABS has been deactivated due to
undervoltage. It is possible that
the battery is not being charged.
Therefore, the following systems
are, for example, also deactiva-
ted: ESP ®
, BAS, 4ETS and the tyre
pressure monitor*.
The brake system continues to
function normally, but without
electronic support. The wheels
could therefore lock if you brake
hard. X
Switch off consumers that are not required, e.g. reading lamps,
interior lighting, etc.
ABS will be available again as soon as the vehicle's electrical sys-
tem voltage increases.
X Observe the additional messages in the multi-function display
(Y page 194). You have engaged the differential
locks. X
Disengage the differential locks.
Subsequently ABS is reactivated. v
The yellow ESP ®
warning
lamp flashes while the
vehicle is in motion. G
Risk of accident
ESP ®
, ABS or traction control has
intervened because at least one
wheel has reached its grip limit
and is threatening to spin or lock. X
Only depress the accelerator pedal as far as necessary when pull-
ing 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 48) Practical advice
* optional
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Troubleshooting
214 Problem Possible cause/consequence Suggested solutions
v
Theyellow ESP ®
warning
lamp is lit while the engine
is running. G
Risk of accident
ESP ®
is deactivated. ESP ®
will
not stabilise the vehicle if it starts
to skid or if a wheel starts to spin. X
Reactivate ESP ®
.
X Adapt your driving style to suit the road and weather conditions. You have engaged the differential
locks. ABS, ESP
®
, 4ETS and BAS
have been deactivated. X
Disengage the differential locks.
Subsequently ABS, ESP ®
, 4ETS and BAS are reactivated.
X Observe the additional messages in the multi-function display
(Y page 194). 1
The red SRS warning lamp
is lit while the engine is
running. G
Risk of injury
The restraint systems are mal-
functioning. The airbags or belt
tensioners may either be trig-
gered unintentionally or, in the
event of an accident, not at all. X
Visit a qualified specialist workshop immediately. 3
The red brake system
warning lamp comes on
while the engine is run-
ning. The parking brake is applied. X
Release the parking brake.
The warning lamp goes out. 3
The red brake system
warning lamp comes on
while you are driving. You
will also hear a warning
tone. You are driving with the parking
brake applied. X
Release the parking brake.
The warning lamp goes out and the warning tone ceases. Practical advice
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