Display messagesPossible causes/consequences and M SolutionsGRisk of accident
ESP ®
, BAS, PRE-SAFE ®
, HOLD and hill start assist are temporarily
unavailable. BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
The on-board voltage may be insufficient, for example.
ATTENTION ASSIST 24
is deactivated.
The brake system continues to function normally, but without the
functions listed above.
XDrive on carefully.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
XVisit a qualified specialist workshop.GRisk of accident
If the display message is shown and the ÷ warning lamp flashes
at the same time, ETS (Electronic Traction System) is deactivated.
The brakes on the drive wheels could otherwise overheat.
XLet the brakes cool down until the display message disappears
and the ÷ warning lamp goes out.
ETS is active again.å
System InoperativeGRisk of accident
ESP ®
, BAS, PRE-SAFE ®
, HOLD and hill start assist are unavailable
due to a malfunction. BAS PLUS and PRE-SAFE ®
Brake may also
have failed. In addition, the ÷ and å warning lamps light up
in the instrument cluster.
ATTENTION ASSIST 24
is deactivated.
XDrive on carefully.XConsult a qualified specialist workshop.24 Not available on HYBRID vehicles.382Display messagesOn-board computer and displays
BrakesDisplay messagesPossible causes/consequences and M Solutions!÷
Currently
Unavailable See
Operator's ManualGRisk of accident
ABS (Anti-lock Braking System), ESP ®
(Electronic Stability
Program), BAS (Brake Assist), PRE-SAFE ®
, HOLD and hill start
assist are temporarily unavailable. The self-diagnosis function
might not be complete, for example. BAS PLUS (Brake Assist
PLUS) and PRE-SAFE ®
Brake may be inoperative as well. In
addition, the ÷, å and ! warning lamps light up in the
instrument cluster.
ATTENTION ASSIST 25
is deactivated.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
XOn a suitable road, carefully drive the vehicle making slight
steering movements at a speed above 20 km/h.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
XDrive on carefully.XVisit a qualified specialist workshop.GRisk of accident
ABS, ESP ®
, BAS, PRE-SAFE ®
, HOLD and hill start assist are
temporarily unavailable. The on-board voltage may be insufficient,
for example. BAS PLUS and PRE-SAFE ®
Brake may also have
failed. In addition, the ÷, å and ! warning lamps light
up in the instrument cluster.
ATTENTION ASSIST 25
is deactivated.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
XDrive on carefully.
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
XDrive on carefully.XVisit a qualified specialist workshop.25 Not available on HYBRID vehicles.388Display messagesOn-board computer and displays
Display messagesPossible causes/consequences and M Solutions!÷
Inoperative See
Oper. ManualGRisk of accident
ABS, ESP ®
, BAS, PRE-SAFE ®
, HOLD and hill start assist are
unavailable due to a malfunction. BAS PLUS and PRE-SAFE ®
Brake
may also have failed. In addition, the ÷, å and !
warning lamps light up in the instrument cluster.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTION ASSIST 25
is deactivated.
XDrive on carefully.XVisit a qualified specialist workshop immediately.T !
÷
Inoperative See
Oper. Manual GRisk of accident
EBD (Electronic Brake force Distribution), ABS, ESP ®
, BAS, PRE-
SAFE ®
, HOLD and hill start assist are unavailable due to a
malfunction. BAS PLUS and PRE-SAFE ®
Brake may also have
failed. In addition, the ÷, å and ! warning lamps in the
instrument cluster light up and a warning tone sounds.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
XDrive on carefully.XVisit a qualified specialist workshop immediately.#
Brake wearThe brake pads/linings have reached their wear limit.XVisit a qualified specialist workshop.F
(USA only)
!
(Canada only)
Release parking
brakeThe red F (USA only)/ ! (Canada only) indicator lamp
flashes and a warning tone sounds.
You are driving with the electric parking brake applied.XRelease the electric parking brake.
or
XPull away carefully ( Y page 317).25
Not available on HYBRID vehicles.Display messages389On-board computer and displaysZ
Display messagesPossible causes/consequences and M SolutionsThe red F (USA only)/ ! (Canada only) indicator lamp
flashes and a warning tone sounds.
You are performing an emergency stop using the electric parking
brake ( Y page 317).XAfter the emergency stop: release the electric parking brake
lever.The red F (USA only)/ ! (Canada only) indicator lamp
flashes, the yellow F (USA only)/ ! (Canada only) warning
lamp illuminates 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 lever.
While the vehicle is stationary:
XSwitch off the ignition and turn it back on.XRelease the electric parking brake manually.
If the display message continues to be displayed:
XShift the transmission to P.XUse the folding wheel chock (Y page 464) from the vehicle tool
kit to secure the vehicle against rolling away.XConsult a qualified specialist workshop.390Display messagesOn-board computer and displays
Display messagesPossible causes/consequences and M SolutionsF
(USA only)
!
(Canada only)
Parking brake See
Operator's ManualThe yellow F (USA only)/ ! (Canada only) warning lamp
lights up. Additionally, the red F (USA only)/ ! (Canada
only) indicator lamp may light up.
The electric parking brake is malfunctioning.
To release:XPull the electric parking brake lever.
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.XUse the folding wheel chock (Y page 464) from the vehicle tool
kit to secure the vehicle against rolling away.XConsult a qualified specialist workshop.The yellow F (USA only)/ ! (Canada only) warning lamp
flashes.
The power supply for the electric parking brake was interrupted.XPull the electric parking brake lever.
or
XPull away carefully.
or
XPull the electric parking brake lever until the display message
disappears.The red F (USA only)/ ! (Canada only) indicator lamp
flashes and the yellow F (USA only)/ ! (Canada only)
warning lamp lights up.
The electric parking brake is malfunctioning.XSwitch off the ignition and turn it back on.XApply or release the electric parking brake.
or
XPull away carefully.XVisit a qualified specialist workshop.Display messages391On-board computer and displaysZ
Display messagesPossible causes/consequences and M SolutionsThe yellow F (USA only)/ ! (Canada only) warning lamp
lights up. The red F (USA only)/ ! (Canada only) indicator
lamp flashes for approximately 10 seconds after the electric
parking brake has been applied or released. It then goes out or
remains lit.
The electric parking brake is malfunctioning, e.g. because of over
or undervoltage.XPull away carefully.XVisit a qualified specialist workshop.
In the event of over or undervoltage:
XRemove the cause for the over or undervoltage, e.g. by charging
the battery or restarting the engine.XSwitch the ignition off and on, and then apply or release the
electric parking brake.
If this does not release the electric parking brake:
XDo not drive on.XConsult a qualified specialist workshop.The yellow F (USA only)/ ! (Canada only) warning lamp
lights up. The red F (USA only)/ ! (Canada only) indicator
lamp flashes for approximately 10 seconds after the electric
parking brake has been applied or released. It then goes out or
remains lit.
The electric parking brake has overheated.XAllow the vehicle to cool down. Do not apply or release the
electric parking brake during this time.XUse the folding wheel chock (Y page 464) from the vehicle tool
kit to secure the vehicle against rolling away.XWhen the vehicle has cooled down: switch the ignition off and
on again, then apply or release the electric parking brake.392Display messagesOn-board computer and displays
Display messagesPossible causes/consequences and M SolutionsF
(USA only)
!
(Canada only)
Pkg Brake
InoperativeThe yellow F (USA only)/ ! (Canada only) warning lamp
lights up. The red F (USA only)/ ! (Canada only) indicator
lamp flashes for approximately 10 seconds after application or
release F (USA only)/ ! (Canada only). It then goes out or
remains lit.
The electric parking brake is malfunctioning.XSwitch the ignition off and on, and then apply the electric
parking brake.
If it is not possible to apply the electric parking brake:
XShift the transmission to P.XUse the folding wheel chock (Y page 464) from the vehicle tool
kit to secure the vehicle against rolling away.XConsult a qualified specialist workshop.F
(USA only)
!
(Canada only)
Turn On the
Ignition to
Release the
Parking BrakeThe red F (USA only)/ ! (Canada only) indicator lamp lights
up.
You have attempted to release the electric parking brake with the
ignition switched off.XKey: turn the key to position 1 in the ignition lock.XKEYLESS-GO: switch on the ignition.$
(USA only)
J
(Canada only)
Service See Oper.
ManualThere is a malfunction in the system. The brake system continues
to operate normally.XDrive on carefully.XVisit a qualified specialist workshop.$
(USA only)
J
(Canada only)
Check Brake Fluid
LevelGRisk of accident
There is insufficient brake fluid in the brake fluid reservoir.
Additionally, the red $ (USA only)/ J (Canada only)
warning lamp lights up in the instrument cluster and a warning
tone sounds.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.XApply the parking brake.XConsult a qualified specialist workshop.XDo not add brake fluid. This will not rectify the malfunction.Display messages393On-board computer and displaysZ
Display messagesPossible causes/consequences and M SolutionsCruise Control
ohne
Funktion InoperativeCruise control is faulty.XVisit a qualified specialist workshop.Cruise Control
--- mphA condition for activating cruise control has not been met.
You wanted to save a speed of less than 20 mph (30 km/h).XIf the situation allows, drive faster than 20 mph ( 30 km/h) and
save the speed.XCheck the activation conditions for cruise control
( Y page 323).
Tires
GWarning
Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may
lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up
and possibly a fire.
GWarning
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect
handling and fuel economy, and are more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear
unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are
more likely to become punctured or damaged by road debris, potholes etc.
Display messagesPossible causes/consequences and M SolutionsTire Pressures
Displayed After
Driving A Few
MinutesThe tire pressure monitor is measuring the tire pressure.XDrive on.
The tire pressures appear in the multifunction display after you
have been driving for a few minutes.Tire Pressure
Monitor
InoperativeThe TPMS is faulty.XVisit a qualified specialist workshop.Tire Pressure
Monitor
Inoperative No
Wheel SensorsThe wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.XMount wheels with suitable tire pressure sensors.
The TPMS is activated automatically after driving for a few
minutes.Display messages407On-board computer and displaysZ