
Safety systems
Display messages Possible causes/consequences and
0050 Solutions002500E5
Currently
Unavailable See
Operator's Manual ABS (Anti-lock Braking System), ESP
®
(Electronic Stability
Program), BAS (Brake Assist), the HOLD function, hill start assist
and ESP ®
trailer stabilization are temporarily unavailable.
BAS and the adaptive brake lights may also have failed.
In addition, the 00E5, 00BB and 0025 warning lamps light up in
the instrument cluster.
Possible causes are:
R Self-diagnosis is not yet complete.
R The on-board voltage may be insufficient.
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 steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational,
ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance making slight steering
movements at a speed above 12 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 carefully.
X Visit a qualified specialist workshop. 002500E5
Inoperative See
Operator's Manual ABS, ESP
®
, BAS, the HOLD function, hill start assist and
ESP ®
trailer stabilization are unavailable due to a malfunction.
BAS and the adaptive brake lights may also have failed.
The 0027 (USA only)/004D (Canada only), 00E5, 00BB and 0025
warning lamps in the instrument cluster also light up.
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 steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase. 226
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
0050 SolutionsIf ESP
®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. 00E5
Currently
Unavailable See
Operator's Manual ESP
®
, BAS, the HOLD function, hill start assist and ESP ®
trailer
stabilization are unavailable due to a malfunction.
BAS and the adaptive brake lights may also have failed.
In addition, the 00E5 and 00BB warning lamps light up in the
instrument cluster.
The self-diagnosis function might not be complete, for example.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational,
ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance making slight steering
movements at a speed above 12 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 carefully.
X Visit a qualified specialist workshop. Display messages
227
On-board computer and displays Z

Display messages Possible causes/consequences and
0050 Solutions00E5
Inoperative See
Operator's Manual ESP
®
, BAS, the HOLD function, hill start assist and ESP ®
trailer
stabilization are unavailable due to a malfunction.
BAS and the adaptive brake lights may also have failed.
In addition, the 00E5 and 00BB warning lamps light up in the
instrument cluster.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational,
ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop. 007A0025
00E5
Inoperative See
Operator's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS, the
HOLD function, hill start assist and ESP ®
trailer stabilization are
unavailable due to a malfunction.
BAS and the adaptive brake lights may also have failed.
In addition, the 00E5, 00BB and 0025 warning lamps light up in
the instrument cluster and a warning tone sounds.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational,
ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. 0049(USA
only)0024(Canada
only)
Release Park. Brake You are driving with the parking brake applied. A warning tone also
sounds.
X
Release the parking brake.228
Display messages
On-board computer and displays

Display messages Possible causes/consequences and
0050 Solutions0027(USA
only)004D(Canada
only)
Check Brake Fluid
Level There is not enough brake fluid in the brake fluid reservoir. In
addition, the
0027 (USA only)/004D (Canada only) warning lamp
lights up in the instrument cluster and a warning tone sounds.
G WARNING
The braking effect may be impaired.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and
traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away ( Y page 156).
X Consult a qualified specialist workshop.
X Do not add brake fluid. This does not correct the malfunction. 0026
Check Brake Pad
Wear The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop. 0053
mbrace Inoperative USA only:
one or more main
functions of the mbrace system are
malfunctioning.
Canada only: one or more main functions of the TELE AID system
are malfunctioning.
X USA only: have the mbrace system checked at a qualified
specialist workshop.
X Canada only: have the Tele AID system checked at a qualified
specialist workshop. 0075
SRS Malfunction
Service Required There is a malfunction in the SRS (Supplemental Restraint
System). The 0075 warning lamp also lights up in the instrument
cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
For further information about SRS, see (Y page 39). Display messages
229
On-board computer and displays Z

Display messages Possible causes/consequences and
0050 Solutions0075
Front Left
Malfunction
Service
RequiredorFront
Right Malfunction
Service Required SRS has malfunctioned at the front on the left or right. The
0075
warning lamp also lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop. 0075
Rear Left
Malfunction
Service
RequiredorRear
Right Malfunction
Service Required SRS has malfunctioned at the rear on the left or right. The
0075
warning lamp also lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop. 0075
Rear Center
Malfunction
Service Required SRS has malfunctioned at the rear center. The
0075 warning lamp
also lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop. 0075
Left Side Curtain
Airbag
Malfunction
Service Required
or Right Side
Curtain Airbag
Malfunction
Service Required There is a malfunction in the left-hand or right-hand window
curtain air bag. The
0075 warning lamp also lights up in the
instrument cluster.
G WARNING
The left or right window curtain air bag may either be triggered
unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.230
Display messagesOn-board computer and displays

SmartKey
Display messages Possible causes/consequences and
0050 Solutions00AF
Key Does Not
Belong to Vehicle You have put the wrong SmartKey in the ignition lock.
X
Use the correct SmartKey. 00AF
Take Your Key
from
Ignition The SmartKey is in the ignition lock.
X
Remove the SmartKey. 00AF
Obtain a New Key The SmartKey needs to be replaced.
X
Visit a qualified specialist workshop. Warning and indicator lamps in the
instrument cluster
Overview of warning and indicator
lamps
0058 Low-beam
headlamps(Y page 99)
003E003D Turn signals (Y
page 103)
0057 High-beam headlamps
(
Y page 103)
005A Fog lamps (Y page 101)
005E Rear fog lamp (Y page 101)
00E9 Seat belts (Y page 248)
0027 (USA) Brakes (Y page 249)
004D (Canada) Brakes (yellow) (Y page 249)
0025 ABS (Y page 250)
00E5 ESP®
(Y page 252)
00BB ESP®
OFF (Y page 252)
0075 SRS (Y page 255)
00B9 Check Engine (Y page 256)
00B6 Reserve fuel (Y page 256)
00AC Coolant (Y page 256)
00BA Distance warning signal
(Y page 258)
0077 Tire pressure monitor
(Y page 259) Warning and indicator lamps in the instrument cluster
247
On-board computer and displays Z

Safety
Seat belts Problem Possible causes/consequences and
0050 Solutions00E9
After starting the
engine, the red seat
belt warning lamp
lights
up for six seconds. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X
Fasten your seat belt ( Y page 50).00E9
After starting the
engine, the red seat
belt warning lamp
lights
up. In addition, a
warning tone sounds
for up to six seconds. The driver's seat belt is not fastened.
X
Fasten your seat belt ( Y page 50).
The warning tone ceases. 00E9
The red seat belt
warning lamp lights up
after the engine starts,
as soon as the driver's
or the front-passenger
door is closed.
The driver or front passenger has not fastened their seat belt.
X
Fasten your seat belt ( Y page 50).
The warning lamp goes out. There are objects on the front-passenger seat.
X
Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out. 00E9
The red seat belt
warning lamp flashes
and an intermittent
audible warning
sounds.
The driver or front passenger has not fastened their seat belt. In
addition, you are
driving
faster than 15 mph (25 km/h) or you have
briefly driven faster than 15 mph (25 km/h).
X Fasten your seat belt ( Y page 50).
The warning lamp goes out and the intermittent warning tone
ceases. There are objects on the front-passenger seat. In addition, you are
driving faster than 15 mph (25 km/h) or you have briefly driven
faster than 15 mph (25 km/h).
X
Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent warning tone
ceases.248
Warning and indicator lamps in the instrument cluster
On-board computer and displays

Safety systems
Problem Possible causes/consequences and
0050 Solutions0027 (USA only)
004D (Canada only)
USA only:
the red
brake system warning
lamp is lit while the
engine is running. A
warning tone also
sounds.
Canada only: the
yellow brake system
warning lamp is lit
while
the engine is running. A
warning tone also
sounds. G
WARNING
The brake boosting effect is malfunctioning and the braking
characteristics may be affected.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and
traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away ( Y page 156).
X Consult a qualified specialist workshop.
X Observe the additional display messages in the multifunction
display. 0027 (USA only)
004D (Canada only)
USA only:
the red
brake system warning
lamp is lit while the
engine is running. A
warning tone also
sounds.
Canada only: the
yellow brake system
warning lamp is lit
while
the engine is running. A
warning tone also
sounds. There is not enough brake fluid in the brake fluid reservoir.
G WARNING
The braking effect may be impaired.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and
traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away ( Y page 156).
X Do not add brake fluid. Topping up will not remedy the
malfunction.
X Consult a qualified specialist workshop.
X Observe the additional display messages in the multifunction
display. Warning and indicator lamps in the instrument cluster
249
On-board computer and displays Z