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Tyres and wheels
228
R
you adopt a very sporty driving style (cor-
nering at high speeds or driving with high
rates of acceleration)
R you are towing a very heavy or large trailer
R you are driving with a heavy load (in the
vehicle or on the roof)
Restarting the tyre pressure loss warn-
ing system Restart the tyre pressure loss warning system
if you have:
R changed the tyre pressure
R changed the wheels or tyres
R fitted new wheels or tyres
X Before restarting, consult the table of tyre
pressures on the inside of the fuel filler flap
to ensure that the tyre pressure in all four
tyres is set correctly for the operating con-
ditions concerned.
X Also observe the notes in the section on
tyre pressures (Y page 226). G
Risk of accident
The tyre pressure loss warning system can
only give reliable warnings if you have set
the correct tyre pressure. If an incorrect tyre pressure is set, these
incorrect values will be monitored.
A tyre with insufficient pressure results in
vehicle instability when driving, thus
increasing the risk of an accident.
X Make sure that the key is in position
2(Y page 75) in the ignition lock.
The standard display appears in the multi-
function display (Y page 117).
X Press korj to select the tyre pres-
sure function:
Run Flat Indicator active
Menu: R-Buttonæ
X Press the reset button on the left of the
instrument cluster.
The following message appears in the
multi-function display:
Restart Run Flat Indicator?
Yes Cancel
If you wish to confirm the restart:
X Press the æbutton.
The following message appears in the
multi-function display:
Run Flat Indicator restarted
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres. If you wish to cancel the restart:
X
Press the çbutton.
or
X Wait until the message
Restart Run Flat Indicator?
Yes Cancel disappears.
The tyre pressure values stored at the last
restart will continue to be monitored. Checking the tyre pressure electroni-
cally*
The tyre pressure monitor only functions if
the correct wheel electronics are fitted to all
wheels. These monitor the pressure in all four
tyres, which you have set when restarting the
tyre pressure monitor. The monitor warns you
when the pressure drops in one or more of
the tyres. G
Risk of accident
The tyre pressure monitor does not warn
you of an incorrectly set tyre pressure. The
table on the inside of the fuel filler flap will
help you decide whether the tyre pressures
should be corrected.
The tyre pressure monitor is not able to
warn you of a sudden loss of pressure, e.g. Operation
* optional
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Page 262 of 381

Display
messages 259Display messages
Notes
The on-board computer shows warnings or
malfunctions in the multi-function display.
Certain display messages are accompanied
by a warning tone or a continuous tone.
The multi-function display shows high-priority
display messages in red. In the following
tables, these display messages are printed in
red.
Please respond in accordance with the dis-
play messages and follow the additional
notes in this Owner's Manual. G
Risk of accident
If the instrument cluster or the multi-func-
tion display fails, no messages can be dis-
played.
This means that you will not see information
about the driving situation, such as the
speed, outside temperature, warning/indi- cator lamps, display messages or system
failures. The handling characteristics may
be affected. Adapt your driving style and
speed accordingly.
Immediately consult a qualified specialist
workshop which has the necessary special-
ist knowledge and tools to carry out the
work required. Mercedes-Benz recom-
mends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety-
related systems must be carried out at a
qualified specialist workshop.
Before starting a journey, check that the
warning and indicator lamps are operating
correctly. X
Turn the key to position 2in the ignition
lock.
or
X Press the KEYLESS GO button* twice.
All warning and indicator lamps (except for
the turn signal indicator lamps) light up and
the multi-function display is activated.
The following tables contain all the display
messages.
Hiding display messages After a few seconds, the on-board computer
automatically hides some low priority display
messages. Other messages remain visible in
the multi-function display until you hide them
yourself.
Some high priority display messages cannot
be hidden. The multi-function display shows
these messages continuously until the cau-
ses of the messages have been remedied.
Use the buttons on the multi-function steer-
ing wheel.
X
Use the è,·,jork button
to select another display.
The on-board computer saves certain dis-
play messages in the message memory
(Y page 126). Practical advice
* optional
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Display
messages 263Display messages Possible cause/consequence Possible solution
ESP unavailable See
Owner's Manual G
Risk of accident
ESP ®
and therefore also BAS and PRE-
SAFE ®
are unavailable due to undervolt-
age.
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. ESP unavailable See
Owner's Manual If, when driving, this message appears and
the
v warning lamp flashes, this
means that 4ETS has been deactivated.
This prevents the brakes on the drive
wheels overheating. As soon as the brakes have cooled down again,
4ETS will be reactivated automatically.
The display message disappears and the v
warning lamp goes out. ESP inoperative See
Owner's Manual G
Risk of accident
ESP ®
and therefore also Brake Assist and
PRE-SAFE ®
are unavailable due to a mal-
function. The vwarning 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 immedi-
ately. Select position
P only when vehicle
is at a standstill You have attempted to move the auto-
matic transmission to
Peven though the
vehicle is still moving. X
Stop the vehicle immediately, paying attention
to the traffic conditions as you do so.
X Move the selector lever to P. Practical advi
ce
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Page 291 of 381

Troubleshooting
288 Indicator and warning lamps in the instrument cluster
Problem Possible cause/consequence Suggested solutions
-
The yellow ABS warning
lamp comes on while the
engine is running. G
Risk of accident
ABS has been deactivated due to
a malfunction. Therefore, Brake
Assist, ESP ®
and PRE-SAFE ®
are,
for example, also deactivated.
The brake system continues to
function normally, but without
electronic support. The 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 259).
X Visit a qualified specialist workshop as soon as possible. -
The yellow 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: Brake Assist, ESP ®
, BAS and
PRE-SAFE ®
.
The brake system continues to
function normally, but without
electronic support. The wheels
could therefore lock if you brake
hard, for example. 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. Practical advice
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