Page 610 of 769

609 Practical hints
What to do if …?
Problem
Possible cause/consequence
Suggested solution
-
The yellow Antilock
Brake System (ABS)
indicator lamp comes on
while the engine is run-
ning.
The charging voltage has fallen below
10 volts. The ABS has switched off.
The battery may not be charged sufficiently.
When the voltage is above this value again,
the ABS is operational again and the ABS in-
dicator lamp should go out.
If the ABS indicator lamp does not go out:
Have the generator (alternator) and the
battery checked.
When the voltage is above this value again,
the ABS is operational again.
;(USA only)3(Canada only)-
v
The red brake warning
lamp comes on while the
engine is running. In addi-
tion, the yellow ABS mal-
function indicator lamp,
and the yellow ESP
®
warning lamp come on
and an acoustic warning
sounds.
A malfunction in the Electronic Brake Pro-
portioning (EBP) was detected. The ABS,
BAS, ESP
® and PRE-SAFE
® are also
switched off (see messages in multifunction
display).
The brake system continues to function
normally, but without electronic support.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Read and observe messages in the mul-
tifunction display (
page 622).
Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increas-
es the risk of an accident.
Page 611 of 769

610 Practical hintsWhat to do if …?Problem
Possible cause/consequence
Suggested solution
-
v
The yellow ABS malfunc-
tion indicator lamp and
the yellow ESP
® warning
lamp come on while the
engine is running and an
acoustic warning sounds.
ABS and ESP
® are switched off due to a
malfunction.
The BAS, EBP and PRE-SAFE
® are also
switched off.
The brake system is still functioning nor-
mally but without the ABS available.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Read and observe messages in the mul-
tifunction display (
page 622).
Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increas-
es the risk of an accident.
0(USA only)!(Canada only)
The red indicator lamp
for the electronic parking
brake flashes and/or the
yellow warning lamp for
the electronic parking
brake is on.
The electronic parking brake is malfunction-
ing or defective.
Read and observe messages in the mul-
tifunction display (
page 622).
Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.
Page 623 of 769

622 Practical hintsWhat to do if …?Vehicle status messages in the multi-function display
Warning and malfunction messages ap-
pear in the multifunction display located in
the instrument cluster.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
High-priority messages are shown in red
on the multifunction display. Messages of
lower priority are also shown in yellow or
white.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.Certain messages of high priority cannot
be cleared from the multifunction display
using# or L on the multifunction
steering wheel (
page 283).
Other messages of high priority and mes-
sages of less immediate priority can be
cleared from the multifunction display
using# or L. They are then stored
in the vehicle status message memory
(
page 300). Remember that clearing a
message will only make the message dis-
appear. Clearing a message will not cor-
rect the condition that caused the
message to appear.
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning
messages or the failure of any systems.
Driving characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Contact an authorized
Mercedes-Benz Center as soon as possible.
Page 641 of 769
640 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Malfunction
Stop Vehicle!
ABC is malfunctioning.
The ABC message is continuously shown.
Do not turn steering wheel too far to avoid
damaging the front fenders.
Listen for scraping noises.
Do not exceed a speed of 50 mph (80 km/h).
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 676 of 769
675 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Tele Aid
Inoperative
One or more main functions of the Tele Aid
system are malfunctioning.
Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.
Tire Press. Warning
Caution
Tire Malfunction
Advanced TPMS:
One or more tires are deflating.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Engage the electronic parking brake
(page 412).
If necessary, change the wheel (
page 696).
Page 677 of 769

676 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Caution
Tire Defect
Advanced TPMS:
One or more tires are deflating. The respec-
tive tire is shown in the multifunction
display.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Engage the electronic parking brake
(page 412).
If necessary, change the wheel (
page 696).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Follow recommended tire inflation pres-
sures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated. Do
not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes
etc.
Page 678 of 769
677 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Check
Tire Pressure
Advanced TPMS:
The pressure is too low in one or more tires.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Engage the electronic parking brake
(page 412).
Check and adjust tire inflation pressure as
required (
page 575).
If necessary, change the wheel (
page 575).
Page 679 of 769

678 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Check Tires
Advanced TPMS:
The pressure is too low in one or more tires.
The respective tire is shown in the multi-
function display.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Engage the electronic parking brake
(page 412).
Check and adjust tire inflation pressure as
required (
page 575).
If necessary, change the wheel (
page 575).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
Follow recommended tire inflation pres-
sures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated. Do
not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes
etc.