Display messages on vehicles without steering wheel buttons
Display messages Possible causes/consequences and
0050
0050Solutions ...
...
LIM km/h LIM km/h The speed display flashes.
The vehicle has exceeded the speed set for variable SPEEDTRONIC
or the programmed maximum speed for permanent
SPEEDTRONIC, e.g. on a steep downhill gradient (overrun mode).
X
Apply the brakes yourself as required. NO TPMS NO TPMS The
NO
NOmessage is displayed for 30 seconds. The TPMS
TPMSmessage
is also displayed after 30 seconds.
The tire pressure monitor has malfunctioned.
X Have the tire pressure monitor and the wheels checked at a
qualified specialist workshop. NO TPMS NO TPMS The
NO
NOmessage is displayed for 30 seconds. The TPMS
TPMSmessage
is also displayed after 30 seconds.
The tire pressure monitor is not receiving signals from one or more
wheels because:
R a wheel has been replaced with the spare wheel without wheel
electronics.
R the maximum temperature on one of the wheel electronics units
has been exceeded.
R the wheel electronics are malfunctioning.
X Have wheels with suitable wheel electronics units installed at a
qualified specialist workshop. — — — —
TPMS
TPMS The
— —
— — message is displayed for 30 seconds. The TPMS
TPMSmessage
is also displayed after 30 seconds.
The pressure is insufficient in one or more tires, or the pressures
of the individual tires differ significantly.
X Check the tire pressure at the next opportunity and correct it if
necessary (Y page 293). Display
messages
201On-board computer and displays Z
Display messages on vehicles with steering wheel buttons
Safety systems Display messages Possible causes/consequences and
0050
0050Solutions ABS
ABS
Visit workshop Visit workshop
ABS has been deactivated due to a malfunction. ESP
®
, ASR and
BAS, as well as cruise control, have also been deactivated as a
result.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
This causes steerability and braking to be greatly impaired. The
braking distance can increase in emergency braking situations.
The driven wheels can spin when accelerating.
If ESP ®
is not operational, ESP ®
will not stabilize the vehicle.
There is an increased risk of skidding and accidents.
X Drive on with care.
X Visit a qualified specialist workshop immediately. ABS ABS
Unavailable Unavailable ABS is temporarily unavailable or is deactivated due to undervolt-
age. ESP
®
, ASR and BAS, as well as cruise control, are also
unavailable as a result.
The battery may not be being charged.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
This causes steerability and braking to be greatly impaired. The
braking distance can increase in emergency braking situations.
The driven wheels can spin when accelerating.
If ESP ®
is not operational, ESP ®
will not stabilize the vehicle.
There is an increased risk of skidding and accidents.
X Drive for a short distance at a speed of more than 13 mph
(20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on with care.
X Visit a qualified specialist workshop immediately. 206
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions 003D
Visit workshop Visit workshop ASR has been deactivated due to a malfunction.
The engine power output may be reduced.
G WARNING
The driven wheels can spin when accelerating.
There is an increased risk of skidding and accidents.
X Drive on with care.
X Visit a qualified specialist workshop immediately. 003D
Visit workshop Visit workshop BAS has been deactivated due to a malfunction.
G WARNING
The brake system continues to function normally, but without
electronic support.
The braking distance can increase in emergency braking situa-
tions.
There is a risk of an accident.
X Drive on with care.
X Visit a qualified specialist workshop immediately. 003D
Unavailable Unavailable ASR and BAS have been deactivated due to undervoltage.
The battery may not be being charged.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The braking distance can increase in emergency braking situa-
tions. The driven wheels can spin when accelerating.
There is an increased risk of skidding and accidents.
X Drive on with care.
X Visit a qualified specialist workshop immediately. 0026
Brake wear Visit Brake wear Visit
workshop workshop 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. Display
messages
207On-board computer and displays Z
Display messages Possible causes/consequences and
0050
0050Solutions 0065
Brake fluid Visit Brake fluid Visit
workshop workshop There is insufficient brake fluid in the fluid reservoir.
G WARNING
Braking performance can be impaired.
There is a risk of an accident.
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the brake fluid level in the brake fluid reservoir
(Y page 256).
If the brake fluid is below the MIN mark:
X Do not continue driving under any circumstances.
X Do not add brake fluid. This does not solve the problem.
X Consult a qualified specialist workshop.
If the brake fluid is above the MIN mark:
X Drive on with care.
X Visit a qualified specialist workshop immediately. 0065
Brake Brake
force
forcedistri‐
distri‐
bution
bution EBD has been deactivated due to undervoltage.
The battery may not be being charged.
G WARNING
The rear wheels could lock when you apply the brakes. The braking
distance can increase in emergency braking situations.
There is an increased risk of skidding and accidents.
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Do not drive on.
X Consult a qualified specialist workshop. 0065
Brake Brake
force
forcedistri‐
distri‐
bution Visit work‐
bution Visit work‐
shop shop EBD has been deactivated due to a malfunction.
G WARNING
The rear wheels could lock when you apply the brakes. The braking
distance can increase in emergency braking situations.
There is an increased risk of skidding and accidents.
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Do not drive on.
X Consult a qualified specialist workshop. 208
Display
messagesOn-board computer and displays
Tires
Display messages Possible causes/consequences and
0050
0050Solutions Tire pres. Adjust
Tire pres. Adjust
pres. pres.
0054 The pressure is insufficient in one or more tires, or the pressures
of the individual tires differ significantly.
X Check the tire pressure at the next opportunity and correct it if
necessary (Y page 293). Tire pres. Tire pres.
monitor inopera‐ monitor inopera‐
tive tive The tire pressure monitor has malfunctioned.
X
Have the tire pressure monitor and the wheels checked at a
qualified specialist workshop. Tire pres. Tire pres.
monitor currently monitor currently
unavailable unavailable The tire pressure monitor function is temporarily unavailable due
to radio interference or undervoltage.
X Once the causes have been remedied, the tire pressure monitor
is automatically activated. Tire pres.- Tire pres.-
monitor inopera‐ monitor inopera‐
tive No wheel sen‐ tive No wheel sen‐
sors sors The tire pressure monitor is not receiving signals from one or more
wheels because:
R a wheel has been replaced with the spare wheel without wheel
electronics.
R the maximum temperature on one of the wheel electronics units
has been exceeded.
R the wheel electronics are malfunctioning.
X Have the tire pressure monitor and the wheels checked at a
qualified specialist workshop. 218
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions Check tire(s)
Check tire(s)
0054 The pressure of one or more tires has dropped significantly. If the
tire pressure monitor has detected the affected wheel, the wheel
position is also displayed.
X
Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the tires.
X Repair or change the wheel if necessary (Y page 307).
X Check the tire pressure and correct it if necessary
(Y page 293).
The display message disappears automatically after driving for
a few minutes with the corrected tire pressure. Warning Warning
Tire
Tiredefect
defect
0054 One or more tires is losing air rapidly. If the tire pressure monitor
has detected the affected wheel, the wheel position is also dis-
played.
X
Stop the vehicle without making any sudden steering or braking
maneuvers, paying attention to the traffic conditions as you do
so.
X Repair or change the wheel (Y page 307).Vehicle
Display messages Possible causes/consequences and
0050 0050Solutions 003D
Battery/Alterna‐ Battery/Alterna‐
tor Visit workshop tor Visit workshop The battery is not being charged. Possible causes are a defective
alternator or a torn poly-V-belt.
X
Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the poly-V-belt.
X If the poly-V-belt is torn: do not continue driving. Consult a
qualified specialist workshop.
X If the poly-V-belt is not damaged: have the vehicle checked as
soon as possible by a qualified specialist workshop. 00E6
Electrical Step Electrical Step The electrical step has retracted or extended only partially or not
at all.
X
Make sure there is sufficient free space for the electrical step.
X Open or close the sliding door again.
X If the electrical step still does not extend or retract fully, push
the step in manually (Y page 74). Before stepping out, remind
the passengers that the step is missing. Display
messages
219On-board computer and displays Z
Indicator and warning lamps in the instrument cluster
Problem Possible causes/consequences and
0050
0050Solutions 0072
The yellow ASR/
ESP®
warning
lamp flashes
while the vehicle
is in motion. G
WARNING
ESP ®
or ASR is intervening because at least one of the wheels has
reached its tire grip limit.
Cruise control is deactivated for the duration of the intervention.
X Adapt your driving style to suit the road and traffic conditions.
Do not use too much throttle.
X Drive slowly. 0072
The yellow ASR/
ESP®
warning
lamp is lit while
the engine is
running. ASR is deactivated.
G WARNING
The driven wheels can spin when accelerating.
There is an increased risk of skidding and accidents.
X Activate ASR again. Exceptions (Y page 60).0089
0025003D0065
The yellow ESP ®
, ABS
and ASR/BAS indicator
lamps and the red
brake system indicator
lamp are lit while the
engine is running. EBD is malfunctioning or deactivated due to undervoltage or mal-
function.
The battery may not be being charged.
G WARNING
The rear wheels could lock sooner than expected when you apply
the brakes. The braking distance can increase in emergency brak-
ing situations.
There is an increased risk of skidding and accidents.
X Vehicles with steering wheel buttons: also observe the mes-
sages in the display (Y page 199).
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Do not drive on.
X Consult a qualified specialist workshop. Indicator and warning lamps in the instrument cluster
221On-board computer and displays Z
Problem Possible causes/consequences and
0050
0050Solutions 0065
The red brake
system indicator
lamp is lit while
the engine is
running. There is insufficient brake fluid in the expansion tank.
G WARNING
Braking performance can be impaired.
There is a risk of an accident.
X Vehicles with steering wheel buttons: also observe the mes-
sages in the display (Y page 199).
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Check the brake fluid level in the expansion tank
(Y page 256).
X If the brake fluid is below the MIN mark: do not drive on!
X Do not add brake fluid. This does not solve the problem.
X Consult a qualified specialist workshop. 0065
When towing a
trailer: the red
brake system
indicator lamp is
lit while the
engine is run-
ning.
Additionally, a
warning tone
sounds. G
WARNING
The brake force booster in the trailer is faulty.
The driving and braking characteristics of your vehicle could
change. There is a risk of the trailer overbraking and of you losing
control over the truck/trailer combination.
There is a risk of an accident.
X Vehicles with steering wheel buttons: also observe the mes-
sages in the display (Y page 199).
X Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Do not drive on.
X Consult a qualified specialist workshop. 003D
The yellow ASR/
BAS indicator
lamp is lit while
the engine is
running. ASR has been deactivated due to a malfunction.
The engine power output may be reduced.
G WARNING
The driven wheels can spin when accelerating.
There is an increased risk of skidding and accidents.
X Drive on with care.
X Consult a qualified specialist workshop as soon as possible. 222
Indicator and warning lamps in the instrument clusterOn-board computer and displays