Page 332 of 473
331 Practical hints
What to do if …
Where will I find ...?
Locking/unlocking in an
emergency
Replacing SmartKey batteries
Replacing bulbs
Replacing wiper blades
Flat tire
Batteries
Jump starting
Towing the vehicle
Fuses
Page 335 of 473
334 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
-
The yellow ABS indicator lamp
comes on while driving.
The ABS has detected a malfunction and has
switched off. The BAS and the ESP
® are also
switched off (see messages in display).
The electro-hydraulic brake system is still
functioning normally but without ABS avail-
able.
If the ABS control unit is malfunctioning, oth-
er systems such as Parktronic*, Distronic*,
or the automatic transmission may also be
malfunctioning.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
Read and observe messages in the
display (
page 347).
The charging voltage has fallen below
10 volts and the ABS was switched off.
The battery may not be sufficiently charged.
Switch off electrical consumers that
are currently not needed, e.g. seat
heating.
If necessary, have the generator and
battery checked.
When the voltage is above this value
again, the ABS is operational again.
Page 352 of 473
351 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
ABS
ABS, ESP
unavailable
See
Oper. Manual
The ABS and ESP
® are not available
due to a malfunction. The BAS is also
deactivated.
The system’s self-diagnosis may not
be completed yet.
The electro-hydraulic brake system is
still functioning normally but without
the ABS, the ESP®, and the BAS avail-
able.
Drive a short distance with added caution
at a vehicle speed of above 12 mph
(20 km/h).
When the message disappears, the ABS,
the ESP
®, and the BAS are available again.
If the message does not disappear:
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an authorized
Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increases
the risk of an accident.
Page 353 of 473
352 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
ABS
ABS, ESP
inoperative
See
Oper. Manual
The ABS and ESP
® have switched off
due to a malfunction.
The BAS is also deactivated.
The electro-hydraulic brake system is
still functioning normally but without
the ABS, the ESP®, and the BAS avail-
able.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an authorized
Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increases
the risk of an accident.
––– mph
Cruise control
You have attempted to set a speed be-
low 20 mph (30 km/h).
Accelerate to a speed exceeding
20 mph (30 km/h) and set the speed
(page 210).
The ESP
® is switched off.
Switch on the ESP
® (page 92).
The gear selector lever is set to posi-
tion P, R, or N.
Move the gear selector lever or position D.
The vehicle is secured with the parking
brake.
Release the parking brake (
page 54).
Page 361 of 473
360 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
P
Gear selector
lever to P
You have tried to start the engine with
the KEYLESS-GO* start/stop button
with the gear selector lever not in posi-
tion P.
Place the gear selector lever in position P.
You have tried to turn off the engine
with the KEYLESS-GO* start/stop but-
ton with the gear selector lever not in
position P.
Retractable roof
open/close
completely
The retractable hardtop is not locked
properly.
Push or pull on the retractable hardtop
switch until the indicator lamp in the
switch goes out and the retractable hard-
top is completely open or closed
(page 199).
Page 368 of 473
367 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
T
Reduced
brake effect
Depress brake
pedal fully!
The electro-hydraulic brake system
is in emergency operation mode.
Considerably greater brake pedal
force is required and the stopping
distance is increased.
The maximum speed is limited to
55 mph (90 km/h).
Stop the vehicle in a safe location or as soon
as it is safe to do so.
Apply the parking brake (
page 61).
Do not drive any further.
Prevent the vehicle from rolling away by
blocking the wheels with wheel chocks or oth-
er sizable objects.
Contact an authorized Mercedes-Benz Center
or call for Roadside Assistance (
page 247).
Warning!
G
Driving while this message is displayed can
result in an accident. Have your brake sys-
tem checked immediately.
If the electro-hydraulic brake system enters
its emergency operation mode, the driver
must apply significantly greater brake pedal
pressure and depress the pedal much fur-
ther than normal to obtain braking effect.
If necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
If there is a malfunction in the
electro-hydraulic brake system, we recom-
mend that the vehicle be transported with
all wheels off the ground using flatbed or ap-
propriate wheel lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 421).
Page 369 of 473
368 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
USA only:;Canada only:3
Reduced
brake effect
Visit
workshop
The electro-hydraulic brake system
is in emergency operation mode.
Considerably greater brake pedal
force is required and the stopping
distance is increased.
Stop the vehicle in a safe location or as soon
as it is safe to do so.
Apply the parking brake (
page 61).
Do not drive any further.
Prevent the vehicle from rolling away by
blocking the wheels with wheel chocks or oth-
er sizable objects.
Contact an authorized Mercedes-Benz Center
or call for Roadside Assistance (
page 247).
Warning!
G
Driving while this message is displayed can
result in an accident. Have your brake sys-
tem checked immediately.
If the electro-hydraulic brake system enters
its emergency operation mode, the driver
must apply significantly greater brake pedal
pressure and depress the pedal much fur-
ther than normal to obtain braking effect.
If necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
If there is a malfunction in the
electro-hydraulic brake system, we recom-
mend that the vehicle be transported with
all wheels off the ground using flatbed or ap-
propriate wheel lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 421).
Page 375 of 473
374 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
Check doors
2
You are attempting to drive with
one or more doors open.
Close the doors.
Vehicles with KEYLESS-GO*:
You are pressing the lock button on
the door handle and at least one
door is open.
±
Visit
workshop
Certain electronic systems are un-
able to relay information to the con-
trol system. The following systems
may have failed:
Coolant temperature gauge
Tachometer
Have the electronic systems checked by an
authorized Mercedes-Benz Center
(page 336).
Engine
Service
There may be a malfunction in the
fuel injection system
ignition system
exhaust system
fuel system
Have the engine checked as soon as possible
by an authorized Mercedes-Benz Center
(page 336).
