Display messages
Introduction
General notes Display messages appear in the multifunction display.
Display messages with graphic displays may be shown in simplified form in the Operator's
Manual and may therefore differ from the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in this Operator's Manual.
With certain display messages, you will also hear a warning tone.
You can hide the display messages. The display messages are then stored in the message
memory. Rectify the cause of a display message as soon as possible.
When you stop and park the vehicle, please observe the notes on:
R HOLD function (Y page 242)
R Parking (Y page 220)
Hiding display messages X
Press the aor% button on the steering wheel to hide the display message.
The display message is cleared.
The multifunction display shows high-priority display messages in red. Some high-priority dis- play messages cannot be hidden.
The multifunction display shows these messages continuously until the causes for the mes-
sages have been remedied.
Message memory The on-board computer saves certain display messages in the
message memory. You can call
up the display messages:
X Use ò on the steering wheel to call up the list of menus.
X Press the :or9 button on the steering wheel to select the Service Servicemenu.
X Confirm by pressing aon the steering wheel.
X Press :or9 to select the message memory.
If there are no display messages, you will see No Messages
No Messages in the multifunction display.
If there are display messages, the number of messages stored is shown.
X Press ato confirm.
X Press the :or9 button to scroll through the display messages. 316
Display
messagesOn-board computer and displays
Safety systems
Display messages
Possible causes/consequences and
M
MSolutions !÷
Currently Unavail‐ Currently Unavail‐
able See Opera‐ able See Opera‐
tor's Manual tor's Manual ABS (Anti-lock Brake System), ESP
®
(Electronic Stability Program),
BAS (Brake Assist), PRE‑ SAFE®
, the HOLD function, Hill Start
Assist, Crosswind Assist, STEER CONTROL, Active Lane Keeping
Assist and Active Blind Spot Assist are temporarily unavailable.
BAS PLUS with Cross-Traffic Assist, PRE‑ SAFE®
Brake, PRE‑ SAFE®
PLUS and COLLISION PREVENTION ASSIST PLUS may also have
failed.
In addition, the ÷and! warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
For example, 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 affec-ted. 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.
Carefully drive a suitable distance, making slight steering move-
ments 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. !÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual ABS, ESP
®
, BAS, PRE‑SAFE ®
, the HOLD function, Hill Start Assist,
Crosswind Assist, STEER CONTROL, Active Lane Keeping Assist
and Active Blind Spot are unavailable due to a malfunction.
BAS PLUS with Cross-Traffic Assist, PRE‑SAFE ®
Brake, PRE‑SAFE ®
PLUS and COLLISION PREVENTION ASSIST PLUS may also have
failed.
The $ (USA only)/J (Canada only),÷and! warning
lamps in the instrument cluster may also light up.
ATTENTION ASSIST is deactivated.
G WARNING Display messages
317On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions 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 affec- ted. 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. ÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual ESP
®
, BAS, PRE ‑SAFE®
, the HOLD function, Hill Start Assist,
Crosswind Assist, STEER CONTROL, Active Lane Keeping Assist
and Active Blind Spot are unavailable due to a malfunction.
BAS PLUS with Cross-Traffic Assist, PRE ‑SAFE®
Brake, PRE ‑SAFE®
PLUS and COLLISION PREVENTION ASSIST PLUS may also have
failed.
The ÷ warning lamp also lights up in the instrument cluster.
ATTENTION ASSIST is deactivated.
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. 318
Display
messagesOn-board computer and displays
Display messages
Possible causes/consequences and
M
MSolutions ÷
Currently Unavail‐ Currently Unavail‐
able See Opera‐ able See Opera‐
tor's Manual tor's Manual ESP
®
, BAS, PRE ‑SAFE®
, the HOLD function, Hill Start Assist,
Crosswind Assist, STEER CONTROL, Active Lane Keeping Assist
and Active Blind Spot are unavailable due to a malfunction.
BAS PLUS with Cross-Traffic Assist, PRE ‑SAFE®
Brake, PRE ‑SAFE®
PLUS and COLLISION PREVENTION ASSIST PLUS may also have
failed.
The ÷ warning lamp also lights up in the instrument cluster.
The self-diagnosis function might not be complete, for example.
ATTENTION ASSIST is deactivated.
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 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 move-
ments 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
319On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions T!
÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS,
PRE ‑SAFE ®
, the HOLD function, Hill Start Assist, Crosswind Assist,
STEER CONTROL, Active Lane Keeping Assist and Active Blind
Spot Assist are unavailable due to a malfunction.
BAS PLUS with Cross-Traffic Assist, PRE‑ SAFE®
Brake, PRE ‑SAFE®
PLUS and COLLISION PREVENTION ASSIST PLUS may also have
failed.
In addition, the ÷and! 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 affec-ted. 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. F(USA
only)!
(Canada
only)
Please Release Please Release
Parking Brake Parking Brake The red
F(USA only)/! (Canada only) indicator lamp
flashes and a warning tone sounds. A condition for automatic
release of the electric parking brake is not fulfilled (Y page 222).
You are driving with the electric parking brake applied.
X Release the electric parking brake manually. The red
F(USA only)/! (Canada only) indicator lamp
flashes and a warning tone sounds.
You are using the electric parking brake for emergency braking
(Y page 222). F(USA
only)!
(Canada
only)
Parking Brake See Parking Brake See
Operator's Manual Operator's Manual The yellow
!warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
X Switch the ignition off.
X Press the electric parking brake handle for at least ten seconds.
X Shift the transmission to P.
X Consult a qualified specialist workshop. 320
Display
messagesOn-board computer and displays
Display messages
Possible causes/consequences and
M
MSolutions The yellow
!warning lamp and the red F(USA only)/ !
(Canada only) indicator lamp light up.
The electric parking brake is malfunctioning.
To release:
X Switch off the ignition and turn it back on.
X Release the electric parking brake manually.
or X Release the electric parking brake automatically (Y page 222).
If the electric parking brake still cannot be released: X Do not drive on.
X Consult a qualified specialist workshop. The red
F(USA only)/! (Canada only) indicator lamp
flashes and the yellow !warning lamp lights up.
The electric parking brake is malfunctioning.
To release:
X Switch off the ignition and turn it back on.
X Release the electric parking brake manually.
To apply: X Switch off the ignition and turn it back on.
X Apply the electric parking brake manually.
If the red F(USA only)/ !(Canada only) indicator lamp
continues to flash:
X Do not drive on.
X Secure the vehicle against rolling away (Y page 466).
X Shift the transmission to P.
X Turn the front wheels towards the curb.
X Consult a qualified specialist workshop. Display
messages
321On-board computer and displays Z
Display messages
Possible causes/consequences and
M
MSolutions Active Blind Spot
Active Blind Spot
Assist Currently Assist Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual Active Blind Spot Assist is temporarily inoperative.
Possible causes are:
R function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
When the causes stated above no longer apply, the display mes-
sage disappears.
Active Blind Spot Assist is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 220).
X Restart the engine. Active Blind Spot Active Blind Spot
Assist Inoperative Assist Inoperative Active Blind Spot Assist is defective.
X Visit a qualified specialist workshop. Park Assist Can‐
Park Assist Can‐
celed celed The driver's door is open.
X Repeat the parking gap measurement and parking process with
the driver's door closed. You touched the multifunction steering wheel while steering inter-
vention was active.
X While steering intervention is active, make sure that the multi-
function steering wheel is not touched unintentionally. The vehicle has started to skid and ESP
®
has intervened.
X Use Active Parking Assist again later (Y page 251).Park Park
Assist
Assist Inoper‐
Inoper‐
ative
ative PARKTRONIC is malfunctioning or faulty.
X Follow the instructions and helpful hints in the "Problems with
PARKTRONIC" section (Y page 251).
If the display message continues to be displayed: X Visit a qualified specialist workshop. 344
Display
messagesOn-board computer and displays
Tires
Display messages
Possible causes/consequences and
M
MSolutions Check Tire Pres‐
Check Tire Pres‐
sure Soon sure Soon Canada only:
The tire pressure loss warning system has detected a significant
loss in pressure.
A warning tone also sounds.
Possible causes:
R you have changed the positions of the wheels and tires or instal-
led new wheels and tires.
R the tire pressure in one or more tires is not correct.
G WARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
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 (Y page 220).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 423).
X Check the tire pressures and, if necessary, correct the tire pres-
sure.
X Restart the tire pressure loss warning system when the tire
pressure is correct (Y page 452).Check Tire Pres‐ Check Tire Pres‐
sure Then Restart sure Then Restart
Run Flat Indicator Run Flat Indicator Canada only:
The tire pressure loss warning system generated a display mes-
sage and has not been restarted since.
X Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system (Y page 452).Run Run
Flat
Flat Indicator
Indicator
Inoperative
Inoperative Canada only:
The tire pressure loss warning system is faulty.
X Visit a qualified specialist workshop. 348
Display
messagesOn-board computer and displays