Display messages Possible causes/consequences and
0050
0050Solutions 0049(USA
only)
0024(Canada
only)
Turn On the Turn On the
Ignition to Ignition to
Release the Release the
Parking Brake Parking Brake 0024
The indicator lamp (red) flashes.
You attempted to release the electric parking brake while the
ignition was switched off.
X Switch on the ignition. 0049(USA
only)
004D(Canada
only)
Check Brake Fluid Check Brake Fluid
Level Level There is not enough brake fluid in the brake fluid reservoir. In
addition, the
004Dindicator lamp in the instrument cluster lights
up and a warning tone sounds.
G WARNING
Driving with the message Check Brake Fluid Level Check Brake Fluid Level displayed
can result in 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 Consult a qualified specialist workshop.
Do not add brake fluid. This does not correct the malfunction. 0026
Check Brake Pad Check Brake Pad
Wear Wear The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop. Display
messages
169On-board computer and displays Z
Safety systems
Display messages Possible causes/consequences and
0050
0050Solutions 00E5
ESC Inoperative ESC Inoperative
See Operator's See Operator's
Manual Manual ESP
®
, BAS and hill start assist are unavailable due to a
malfunction. In addition, the 0089and00BB warning lamps light
up in the instrument cluster.
G WARNING
If ESP ®
and BAS are deactivated, the danger of skidding and having
an accident increases.
X Drive on carefully.
X Visit a qualified specialist workshop. 00E5
ESC Currently ESC Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual ESP
®
, BAS and hill start assist are temporarily unavailable. The
self-diagnosis function might not be complete, for example. The
brake system continues to function normally, but without the
functions listed above. In addition, the 0089and00BB warning
lamps light up in the instrument cluster.
G WARNING
If ESP ®
and BAS are deactivated, the danger of skidding and having
an accident increases.
X Carefully drive a short distance making slight steering
movements at a speed above 12 mph (20 km/h) until the display
message disappears. Front Passenger Front Passenger
Airbag Enabled Airbag Enabled
See Operator's See Operator's
Manual Manual The front-passenger air bag and front-passenger knee bag are
enabled during the journey, even though:
R
a child, a small adult or an object weighing less than the
system's weight threshold is located on the front-passenger
seat
R the front-passenger seat is unoccupied
The system may detect objects or forces applying additional
weight on the seat.
G WARNING
The front-passenger front air bag and front passenger knee bag
may be triggered unintentionally.
There is an increased risk of injury.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Switch the ignition off.
X Open the front-passenger door. 170
Display messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions Front Passenger
Front Passenger
Airbag Disabled Airbag Disabled
See Operator's See Operator's
Manual Manual The front-passenger air bag and front-passenger knee bag are
deactivated during the journey, although:
R
an adult
or
R a person larger than a certain size is occupying the front-
passenger seat
If additional forces are applied to the seat, the system may
interpret the occupant's weight as lower than it actually is.
G WARNING
The front-passenger front air bag and front passenger knee bag
may not be triggered in the event of an accident.
There is an increased risk of injury.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Switch the ignition off.
X Have the occupant get out of the vehicle.
X Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
Observe the 00730074(Ypage 42) indicator lamp and the
multifunction display and check the following:
Seat unoccupied and ignition switched on:
R the 00730074 indicator lamp must light up and remain lit. If the
indicator lamp is on, OCS ( Ypage 42) has disabled the front-
passenger air bag.
R the Front Passenger Airbag Enabled See Operator's
Front Passenger Airbag Enabled See Operator's
Manual Manual orFront Passenger Airbag Disabled See
Front Passenger Airbag Disabled See
Operator's Manual
Operator's Manual display messages must not be shown in
the multifunction display. Wait for a period of at least
60 seconds until the necessary system checks have been
completed. This is necessary and ensures that the display
messages do not appear in the multifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the 00730074indicator lamp remains lit
or goes out depends on how OCS classifies the occupant.
If the conditions are not fulfilled, the system is not operating
correctly.
X Visit a qualified specialist workshop immediately. 172
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions 0049
Check Check
Left
LeftLow
LowBeam
Beam
or
Check Right Low Check Right Low
Beam Beam The left or right-hand low-beam headlamp does not light up. In
addition, the high-beam headlamp is also inoperative.
X
Visit a qualified specialist workshop. 0049
AUTO AUTO
Lamp
LampFunction
Function
Inoperative
Inoperative The light sensor is defective.
USA only:
X
Switch off the daytime running lamps in the on-board computer
(Y page 158).
X Switch the lights on and off using the light switch. 0049
Check Rear Left Check Rear Left
Turn Signal Turn Signal
or
Check Rear Right Check Rear Right
Turn Signal Turn Signal The LEDs in the rear left or right-hand indicator lamp do not light
up.
X
Visit a qualified specialist workshop. 0049
Check Left Mirror Check Left Mirror
Turn Signal Turn Signal
or
Check Check
Right
RightMirror
Mirror
Turn Signal
Turn Signal None of the LEDs in the left or right-hand exterior mirrors light up.
X
Visit a qualified specialist workshop. 0049
Check Front Left Check Front Left
Turn Signal Turn Signal
or
Check Front Right Check Front Right
Turn Signal Turn Signal The LEDs in the front left or right-hand indicator lamp do not light
up.
X
Visit a qualified specialist workshop. 0049
Check Check
Center
Center Brake
Brake
Lamp
Lamp None of the LEDs in the high-mounted brake lamp light up.
X
Visit a qualified specialist workshop. 174
Display
messagesOn-board computer and displays
Display messages Possible causes/consequences and
0050
0050Solutions 0049
Check Left Brake Check Left Brake
Lamp Lamp
or
Check Right Brake Check Right Brake
Lamp Lamp The left or right-hand brake light LEDs do not light up.
X
Visit a qualified specialist workshop. 0049
Check Left Tail Check Left Tail
Lamp Lamp
or
Check Right Tail Check Right Tail
Lamp Lamp The left or right-hand tail lamp LEDs do not light up.
X
Visit a qualified specialist workshop. 0049
Check Left High Check Left High
Beam Beam
or
Check Right High Check Right High
Beam Beam The left or right-hand low-beam headlamp does not light up.
X
Visit a qualified specialist workshop. 0049
Check Check
Left
LeftLicense
License
Plate Lamp
Plate Lamp
or
Check Right Check Right
License Plate Lamp License Plate Lamp The left or right-hand license plate lamp does not light up.
X
Replace the bulb (Y page 101). 0049
Backup Light Backup Light None of the LEDs in the backup lamp light up.
X
Visit a qualified specialist workshop. 0049
Check Check
Left
LeftDaytime
Daytime
Running Light
Running Light
or
Check Right Check Right
Daytime Running Daytime Running
Light Light The LEDs in the left or right-hand daytime running lamp do not
light up. As a result, the corresponding side/standing lamp has
failed.
X
Visit a qualified specialist workshop. Display
messages
175On-board computer and displays Z
Display messages Possible causes/consequences and
0050
0050Solutions Tire
Tire
Press.
Press. Warning
Warning
Caution Tire
Caution Tire
Malfunction Malfunction The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
G WARNING
If you drive with a flat tire, there is a risk of the following hazards:
R a flat tire affects the ability to steer or brake the vehicle.
R you could lose control of the vehicle.
R continued driving with a flat tire will cause excessive heat build-
up and possibly a fire.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away ( Ypage 131).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 233). Tire Tire
Press.
Press. Monitor
Monitor
Currently
Currently
Unavailable Unavailable Due to a source of radio interference, no signals can be received
from the wheel sensors. The tire pressure monitor is temporarily
malfunctioning.
X
Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved. Tire Press. Tire Press.
Sensor(s)Missing Sensor(s)Missing There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.
X
Have the faulty tire pressure sensor replaced at a qualified
specialist workshop. Tire Pressure Tire Pressure
Monitor Monitor
Inoperative No Inoperative No
Wheel Sensors Wheel Sensors The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
X
Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes. Tire Pressure Tire Pressure
Monitor Monitor
Inoperative Inoperative The tire pressure monitor is faulty.
X
Visit a qualified specialist workshop. Display
messages
183On-board computer and displays Z
Display messages Possible causes/consequences and
0050
0050Solutions The soft top has been opened and closed several times in a row.
The soft-top drive has been switched off automatically for safety
reasons.
You can open and close the soft top again after approximately ten
minutes.
X
Switch off the ignition and turn it back on.
X Repeat the opening or closing procedure (Y page 79).0059
Depress Brake to Depress Brake to
Start Engine Start Engine You have attempted to close the soft top with the soft top switch
while the vehicle was stationary.
X
Depress the brake pedal.
X Press the soft-top switch until the soft top is completely closed. 00B2
Check Washer Fluid Check Washer Fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X
Add washer fluid ( Ypage 221). SmartKey
Display messages Possible causes/consequences and
0050 0050Solutions 0039
Change Key Battery Change Key Battery The SmartKey batteries are discharged.
X
Change the batteries ( Ypage 65). 0039
Key Not Detected Key Not Detected
(red display message) The SmartKey is not in the vehicle. A warning tone also sounds.
When you switch off the engine, you will be unable to restart it.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Locate the SmartKey. The key is not detected while driving because a powerful radio
transmitter is causing interference. A warning tone also sounds.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Insert the key into the ignition lock and turn it to the desired
position (Y page 119). Display
messages
185On-board computer and displays Z
Display messages Possible causes/consequences and
0050
0050Solutions 0039
Key Not Detected Key Not Detected
(white display
message) You are in the vehicle and the key currently cannot be detected
by the vehicle.
X
Change the location of the SmartKey in the vehicle.
If the SmartKey still cannot be detected:
X Insert the key into the ignition lock and turn it to the desired
position (Y page 119). 0039
Obtain a New Key Obtain a New Key The SmartKey needs to be replaced.
X
Visit a qualified specialist workshop. 0039
Key Does Not Key Does Not
Belong to Vehicle Belong to Vehicle You have put the wrong SmartKey in the ignition lock.
X
Use the correct SmartKey. 0039
Close Doors to Close Doors to
Lock Vehicle Lock Vehicle At least one door is open. A warning tone also sounds.
X
Close all doors and lock the vehicle again. 0039
Remove 'Start' Remove 'Start'
Button and Insert Button and Insert
Key Key The KEYLESS-GO start function is temporarily malfunctioning or
is defective. A warning tone also sounds.
X
Insert the key into the ignition lock and turn it to the desired
position (Y page 119). 0039
Take Take
Your
YourKey
Keyfrom
from
Ignition
Ignition The SmartKey is in the ignition lock.
X
Remove the SmartKey. Transmission
Display messages Possible causes/consequences and
0050 0050Solutions Apply Brake
Apply Brake
to Shift from 'P' to Shift from 'P' You have attempted to move the transmission selector lever to
position
D,Ror Nwithout depressing the brake pedal.
X Depress the brake pedal. Apply Brake Apply Brake
and Start Engine and Start Engine
to Disengage 'P' to Disengage 'P' When the engine is switched off, it is not possible to shift out of
park position
P.
X Depress the brake pedal and start the engine. Start Engine Start Engine
to Engage Gear to Engage Gear The gear cannot be engaged when the engine is switched off.
X
Depress the brake pedal and start the engine. 186
Display
messagesOn-board computer and displays