Display messagesPossible causes/consequences and M Solutions! The indicator lamp (red) flashes, the warning lamp (yellow)
lights up and a warning tone sounds.
The electric parking brake is malfunctioning and the braking effect
is restricted.
While the vehicle is in motion:XRelease the electric parking brake handle.
While the vehicle is stationary:
XSwitch off the ignition and turn it back on.XRelease the electric parking brake.
If the display message continues to be displayed:
XShift the transmission to P using the button on the center
console.XPrevent the vehicle from rolling away before you leave it.XConsult a qualified specialist workshop.! The indicator lamp (red) flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake.XAfter the emergency stop: release the electric parking brake
lever.F (USA only)
! (Canada only)
Parking Brake See
Oper. Manual! The warning lamp (yellow) lights up. Additionally the
indicator lamp (red) lights up.
The electric parking brake is malfunctioning.
To release:XPull the electric parking brake handle.
or
XPull away carefully.XVisit a qualified specialist workshop.
To apply:
XSwitch off the ignition.XPull the electric parking brake lever for at least ten seconds,
until the display message disappears.
If the display message continues to be displayed:
XShift the transmission to P using the button on the center
console.XPrevent the vehicle from rolling away before you leave it.XConsult a qualified specialist workshop.166Displays and operationOn-board computer and displays
Display messagesPossible causes/consequences and M Solutions! The indicator lamp (red) flashes.
The power supply for the electric parking brake was interrupted.XPull the electric parking brake handle.
or
XPull away carefully.
or
XPull the electric parking brake handle until the display message
disappears.! The indicator lamp (red) flashes and the warning lamp
(yellow) lights up.
The electric parking brake is malfunctioning.XSwitch off the ignition and turn it back on.XEngage or release the electric parking brake.
or
XPull away carefully.XVisit a qualified specialist workshop.! The warning lamp (yellow) lights up. In addition, the indicator
lamp (red) flashes for about 10 seconds after the electric parking
brake has been engaged or released. It then goes out or remains
lit.
The electric parking brake is malfunctioning, e.g. because of
overvoltage or undervoltage.XPull away carefully.XVisit a qualified specialist workshop.
If there is overvoltage or undervoltage:
XRemove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.XSwitch the ignition off and on, and then engage or release the
electric parking brake.
If this does not release the electric parking brake:
XDo not drive on.XConsult a qualified specialist workshop.Displays and operation167On-board computer and displaysZ
Display messagesPossible causes/consequences and M Solutions! The warning lamp (yellow) lights up. In addition, the indicator
lamp (red) flashes for about 10 seconds after the electric parking
brake has been engaged or released. It then goes out or remains
lit.
The electric parking brake has overheated.XAllow the vehicle to cool down. Do not engage or release the
electric parking brake during this time.XPrevent the vehicle from rolling away before you leave it.XWhen the vehicle has cooled down: switch the ignition off and
on again, then engage or release the electric parking brake.F (USA only)
! (Canada only)
Parking Brake
Inoperative! The warning lamp (yellow) lights up. In addition, the indicator
lamp (red) flashes for about 10 seconds after the electric parking
brake has been engaged or released. It then goes out or remains
lit.
The electric parking brake is malfunctioning.XSwitch the ignition off and on, and then engage the electric
parking brake.
If it is not possible to engage the electric parking brake:
XShift the transmission to P using the button on the center
console.XPrevent the vehicle from rolling away before you leave it.XVisit a qualified specialist workshop.F (USA only)
! (Canada only)
Turn On the
Ignition to
Release the
Parking Brake! The indicator lamp (red) flashes.
You attempted to release the electric parking brake while the
ignition was switched off.XSwitch on the ignition.168Displays and operationOn-board computer and displays
Safety systemsDisplay messagesPossible causes/consequences and M Solutions÷
ESC Inoperative
See Operator's
ManualGRisk of accident
ESP ®
, BAS and hill start assist are unavailable due to a
malfunction. In addition, the h and å warning lamps light
up in the instrument cluster.
The brake system continues to function normally, but without the
functions listed above.
XDrive on carefully.XVisit a qualified specialist workshop.÷
ESC Currently
Unavailable See
Operator's ManualGRisk of accident
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 h and å warning
lamps light up in the instrument cluster.
XCarefully drive a short distance making slight steering
movements at a speed above 12 mph (20 km/h) until the display
message disappears.Front Passenger
Airbag Enabled
See Operator's
ManualThe 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.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XApply the parking brake.XSwitch the ignition off.XOpen the front-passenger door.XRemove the child and the child restraint system from the front-
passenger seat.170Displays and operationOn-board computer and displays
Display messagesPossible causes/consequences and M SolutionsXMake sure that there are no objects on the seat adding to the
weight.
The system may otherwise detect the additional weight and
interpret the seat occupant's weight as greater than it actually
is.XKeep the seat unoccupied, close the front-passenger door and
switch on the ignition.
Observe the 45(Y page 42) indicator lamp and the
multifunction display and check the following:
Seat unoccupied and ignition switched on:
R the 45 indicator lamp must light up and remain lit. When
the indicator lamp is on, OCS (Y page 42) has disabled the front-
passenger air bag.
R the Front Passenger Airbag Enabled See Operator's
Manual or Front Passenger Airbag Disabled See
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 and to make sure 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 45 indicator 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.
XVisit a qualified specialist workshop immediately.GWARNING
If the 45 indicator lamp remains off even after performing the above corrective steps, do
not have any children twelve years old and under and other small individuals use the front-
passenger seat until the system has been repaired.
Displays and operation171On-board computer and displaysZ
Display messagesPossible causes/consequences and M SolutionsFront Passenger
Airbag Disabled
See Operator's
ManualThe front-passenger air bag and the front-passenger knee bag are
deactivated during the journey even though an adult or 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.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XApply the parking brake.XSwitch the ignition off.XHave the occupant get out of the vehicle.XKeep the seat unoccupied, close the front-passenger door and
switch on the ignition.
Observe the 45(Y page 42) indicator lamp and the
multifunction display and check the following:
Seat unoccupied and ignition switched on:
R the 45 indicator lamp must light up and remain lit. When
the indicator lamp is on, OCS (Y page 42) has disabled the front-
passenger air bag.
R the Front Passenger Airbag Enabled See Operator's
Manual or Front Passenger Airbag Disabled See
Operator's Manual display messages must not be shown in
the multifunction display. Wait for at least 60 seconds until the
necessary system checks have been completed and to make
sure 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 45 indicator 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.
XVisit a qualified specialist workshop immediately.GWARNING
If the 45 indicator lamp remains lit with an adult occupant on the front-passenger seat
even after performing the above corrective steps, do not have any passenger use the front-
passenger seat until the system has been repaired.
172Displays and operationOn-board computer and displays
Display messagesPossible causes/consequences and M SolutionsK
Convertible Top
Operation Possible
to 31 mphIf you are traveling at more than 31 mph (50 km/h), you cannot
open or close the soft top.XFully open or close the soft top ( Y page 78).K
Convertible top
Opening/Closing
Not FinishedThe soft top is not fully opened or closed. The hydraulics are
depressurized.XFully open or close the soft top ( Y page 78).K
Open/Close
Convertible Top
CompletelyThe roof is not locked. If you are traveling at more than 31 mph
(50 km/h), you cannot open or close the soft top.XIf you are traveling at more than 31 mph (50 km/h), slow down.XPush or pull the soft-top switch (Y page 78) until the soft top is
fully open or closed.K
Convertible Top in
Operation Please
WaitThe on-board voltage is too low.XStart the engine.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.XSwitch off the ignition and turn it back on.XRepeat the opening or closing procedure ( Y page 78).K
Depress brakeYou have attempted to close the soft top with the soft top switch
while the vehicle was stationary.XDepress the brake pedal.XPress the soft-top switch until the soft top is completely closed.¥
Check Washer FluidThe washer fluid level in the washer fluid reservoir has dropped
below the minimum.Xadd washer fluid ( Y page 221).184Displays and operationOn-board computer and displays
SmartKeyDisplay messagesPossible causes/consequences and M Solutions+
Replace Key BatteryThe SmartKey batteries are discharged.XChange the batteries ( Y page 66).+
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.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XLocate the SmartKey.The SmartKey is not detected while driving because a powerful
radio transmitter is causing interference. A warning tone also
sounds.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XInsert the SmartKey into the ignition lock and turn it to the
desired position ( Y page 115).+
Key Not Detected
(white display
message)You are in the vehicle and the SmartKey currently cannot be
detected by the vehicle.XChange the location of the SmartKey in the vehicle.
If the SmartKey still cannot be detected:
XInsert the SmartKey into the ignition lock and turn it to the
desired position ( Y page 115).+
Obtain a New Key The SmartKey needs to be replaced.XVisit a qualified specialist workshop.+
Key Does Not
Belong to VehicleYou have put the wrong SmartKey in the ignition lock.XUse the correct SmartKey.+
Close Doors to
Lock VehicleAt least one door is open. A warning tone also sounds.XClose all doors and lock the vehicle again.Displays and operation185On-board computer and displaysZ