Page 252 of 377

Display
messages 24
9 Display messages Possible cause/consequence Possible solution
- ABS and ESP inoper-
ative See Owner's
Manual
G
Risk of accident
ABS, ESP ®
, BAS, PRE–SAFE ®
*, hill start
assist and ESP ®
trailer stabilisation ar e
unavailable due to a malfunction. The
v warning lamp also lights up in th e
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. \ Trailer tow hitch
Check lock mecha-
nism
The trailer tow hitch* is not correctly
engaged. A warning tone also sounds. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Allow the ball coupling to engage in the end
position (Y page 220). # The battery is not being charged. Possible
causes:
R
faulty alternator
R torn poly-V-bel t
R 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 th e
nearest qualified specialist workshop .
X If it is not damaged :have the vehicle checked
as soon as possible at a qualified specialist
workshop. Practical advice
* optional
204_AKB; 2; 3, en-GB
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Page 253 of 377

Display
messages 25
0 Display messages Possible cause/consequence Possible solution
2 4-button multi-function
steering wheel:
Brake wear
12-button luxury multi-
function steering
wheel:
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. In addition, the
3 warning lamp lights up in the instru-
ment cluster. 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. Î 4-button multi-function
steering wheel:
Release park.
brake
12-button luxury multi-
function steering
wheel:
Release parkin
g
brake You are driving with the parking brake on.
A warning tone also sounds. X
Release the parking brake. Practical advice
204_AKB; 2; 3, en-GB
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0
Page 254 of 377

Display
messages 25
1 Display messages Possible cause/consequence Possible solution
3 EBV, ABS, ESP inop-
erative See Own-
er's Manual
G
Risk of accident
EBV, ABS, ESP ®
, BAS, PRE–SAFE ®
*, hill
start assist and ESP ®
trailer stabilisatio n
are unavailable due to a malfunction. In
addition, the vwarning lamp in th e
instrument cluster lights up and a warnin g
tone sounds.
The brake system continues to functio n
normally, but without the functions listed
above . X
Drive on carefully.
X Visit a qualified specialist workshop immedi-
ately. ñ Clean the fuel fil-
ter X
Visit a qualified specialist workshop. D 4-button multi-function
steering wheel:
Stop vehicl
e
Engine off
12-button luxury multi-
function steering
wheel:
Coolant Stop vehi-
cle Switch engine
off The coolant is too hot. In addition, the
D
warning lamp in the instrument clus-
ter lights up and a warning tone sounds. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Switch off the engine.
X Wait until the display message disappears
before restarting the engine. There is other-
wise a risk of engine damage.
X Observe the coolant temperature gauge.
X If the temperature increases again, visit a quali-
fied specialist workshop immediately. Practical advice
* optional
204_AKB; 2; 3, en-GB
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2007-06-26T23:11:51+02:00 - Seite 251 Z
Page 257 of 377
Display
messages 25
4 Display messages Possible cause/consequence Possible solution
. 4-button multi-function
steering wheel:
Trailer left turn
sig.
or
Trailer rt.tur
n
sig.
12-button luxury multi-
function steering
wheel:
Trailer left turn
sig.
or
Trailer rt. turn
sig. The left-hand or right-hand trailer turn sig-
nal is faulty. X
Replace the bulb as soon as possible. . 4-button multi-function
steering wheel:
Trailer brake lamp
12-button luxury multi-
function steering
wheel:
Trailer brake lamp The trailer brake lamp is faulty. X
Replace the bulb as soon as possible. Practical advice
204_AKB; 2; 3, en-GB
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4
Page 261 of 377
Display
messages 25
8 Display messages Possible cause/consequence Possible solution
. 4-button multi-function
steering wheel:
Front left turn
signal
or
Front right turn
signal
12-button luxury multi-
function steering
wheel:
Front left turn
signal
or
Front right turn
signal The front left-hand or right-hand turn sig-
nal is faulty. X
Replace the bulb as soon as possibl e
( Y page 305). . 4-button multi-function
steering wheel:
Third brake lamp
12-button luxury multi-
function steering
wheel:
Third brake lamp The third brake lamp is faulty. This displa
y
message will only appear if all LEDs have
failed. X
Visit a qualified specialist workshop as soon as
possible. Practical advice
204_AKB; 2; 3, en-GB
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Page 262 of 377
Display
messages 25
9 Display messages Possible cause/consequence Possible solution
. 4-button multi-function
steering wheel:
Tail/brake lamp,
left
or
Tail/brake lamp,
right
12-button luxury multi-
function steering
wheel:
Left-hand tail
lamp/brake lamp
or
Right-hand tail
lamp/brake lamp The left-hand or right-hand tail lamp/
brake lamp is faulty. X
Replace the bulb as soon as possibl e
( Y page 305). Practical advice
204_AKB; 2; 3, en-GB
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Page 263 of 377
Display
messages 26
0 Display messages Possible cause/consequence Possible solution
. 4-button multi-function
steering wheel:
Left-hand brake
lamp
or
Right-hand brake
lamp
12-button luxury multi-
function steering
wheel:
Left-hand brake
lamp
or
Right-hand brake
lamp The left-hand or right-hand brake lamp is
faulty. X
Replace the bulb as soon as possibl e
( Y page 305). Practical advice
204_AKB; 2; 3, en-GB
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Page 282 of 377

Troubleshooting
27
9 Indicator and warning lamps in the instrument cluster
Problem Possible cause/consequence Suggested solutions
-
The yellow ABS warning
lamp lights up while the
engine is running. G
Risk of accident
ABS, ESP ®
, BAS, PRE–SAFE ®
*,
hill start assist and ESP ®
trailer
stabilisation are unavailable du e
to a malfunction.
The brake system continues to
function normally, but without
the functions listed above. Th e
wheels could therefore lock if you
brake hard, for example. X
Drive on carefully.
X Observe the additional messages in the multi-function display
(Y page 236).
X Visit a qualified specialist workshop as soon as possible. v
The yellow ESP ®
warning
lamp lights up while th e
engine is running. G
Risk of accident
ESP ®
is deactivated. ES P®
will
not stabilise the vehicle if it start s
to skid or if a wheel starts to spin. X
Reactivate ES P®
(Y page 68).
Exceptions (Y page 68).
X Adapt your driving style to suit the road and weather conditions. G
Risk of accident
ESP ®
is not available due to a
malfunction. ESP ®
will not stabi-
lise 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 236).
X Drive on carefully.
X Visit a qualified specialist workshop. Practical advice
* optional
204_AKB; 2; 3, en-GB
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