2015 MERCEDES-BENZ CLA-Class wheel

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.
Certain display messages are accompanied by an audible warning tone or a continuous tone.
When the ignition is switched off, all display messages are deleted, apart from some high-
priority display messages. Once the causes of the high-priority display messages have been
rectified, the corresponding display messages are also deleted.
When you stop and park the vehicle, please observe the notes on:
R HOLD function (Y page 178)
R Parking (Y page 160)
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 Press the =or; button on the steering wheel to select the Serv. Serv.menu.
If there are display messages, the multifunction display shows 2 Messages
2 Messages, for example.
X Press the 9or: button to select the entry, e.g. 2 Messages
2 Messages.
X Press ato confirm.
X Press the 9or: button to scroll through the display messages. Display
messages
217On-board computer and displays Z

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 Braking System), BAS (Brake Assist), ESP
®
(Elec-
tronic Stability Program), the HOLD function and hill start assist
are temporarily unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the !,÷andå warning lamps may light up
in the instrument cluster.
ATTENTION ASSIST is deactivated.
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 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 Carefully drive a short distance on a suitable stretch of road,
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. !÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual ABS, BAS, ESP
®
, the HOLD function and hill start assist are not
available due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The !, ÷,åand$ (USA only)/J (Canada only)
warning lamps in the instrument cluster may also light up.
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. 218
Display messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions ÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual ESP
®
, BAS, the HOLD function and hill start assist are unavailable
due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷andå warning lamps may light 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. T!
÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual EBD (electronic brake force distribution), ABS, BAS, ESP
®
, the
HOLD function and hill start assist are not available due to a mal- function.
COLLISION PREVENTION ASSIST PLUS may also have failed.
A warning tone sounds.
In addition, the ÷,åand! warning lamps may light up
in the instrument cluster.
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. 220
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions 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 342).
X Shift the selector lever to position P.
X Turn the front wheels towards the curb.
X Consult a qualified specialist workshop. The yellow
!warning lamp lights up. The red F(USA
only)/ !(Canada only) indicator lamp flashes for about ten
seconds after the electric parking brake has been applied or
released. It then goes out or remains lit.
The electric parking brake is malfunctioning.
X Switch off the ignition and turn it back on.
X Apply the electric parking brake.
If it is not possible to engage the electric parking brake:
X Shift the selector lever to position P.
X Visit a qualified specialist workshop.
If it is not possible to release the electric parking brake manually:
X Release the electric parking brake automatically (Y page 162).
If the electric parking brake still cannot be released: X Consult a qualified specialist workshop. 222
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Park Assist Can‐
Park Assist Can‐
celed celed The driver's door is open and the driver's seat belt has not been
fastened.
X Repeat the parking process with the seat belt fastened and the
driver's door closed. You have inadvertently touched the multifunction steering wheel
while steering intervention 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 184).Park Park
Assist
Assist Inoper‐
Inoper‐
ative
ative You have just carried out a large number of turning or parking
maneuvers.
Active Parking Assist will become available again after approx-
imately ten minutes (Y
page 184).
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Switch off and restart the engine.
If the display message continues to be displayed: X Visit a qualified specialist workshop. PARKTRONIC is defective.
X Visit a qualified specialist workshop. Park Assist Fin‐ Park Assist Fin‐
ished ished The vehicle is parked. A warning tone also sounds.
The display message disappears automatically.
DISTRONIC PLUS Off DISTRONIC PLUS Off DISTRONIC PLUS has been deactivated (Y
page 171).
If it was not deactivated by the driver, a warning tone also sounds. DISTRONIC
DISTRONIC
PLUS
PLUSNow
Now
Available
Available DISTRONIC PLUS is operational again after having been tempo-
rarily unavailable. You can now reactivate DISTRONIC PLUS
(Y
page 171). Display
messages
237On-board computer and displays Z

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
Tire pressures that are too low pose the following 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 160).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 300).
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 326).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 326).Run Run
Flat
Flat Indicator
Indicator
inoperative
inoperative Canada only:
The tire pressure loss warning system is faulty.
X Visit a qualified specialist workshop. Display
messages
239On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Please Correct
Please Correct
Tire Pressure Tire Pressure USA only:
The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X Check the tire pressures at the next opportunity (Y page 326).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 328).Check Tires Check Tires USA only:
The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
A warning tone also sounds.
G WARNING
Tire pressures that are too low pose the following 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 160).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 300).
X Check the tire pressure (Y page 326).
X If necessary, correct the tire pressure. 240
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Warning Tire Mal‐
Warning Tire Mal‐
function function USA only:
The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
G WARNING
Driving with a flat tire poses 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 (Y page 160).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 300). Tire Press. Moni‐ Tire Press. Moni‐
tor Currently tor Currently
Unavailable Unavailable USA only:
Because there is interference from a strong source of radio waves,
no signals from the tire pressure sensors are detected. The tire
pressure monitor is temporarily malfunctioning.
X Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been resolved. TirePress. Sen‐ TirePress. Sen‐
sor(s) Missing sor(s) Missing USA only:
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 spe-
cialist workshop. Tire Pressure Mon‐ Tire Pressure Mon‐
itor Inoperative itor Inoperative
No Wheel Sensors No Wheel Sensors USA only:
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 Press. Moni‐ Tire Press. Moni‐
tor Inoperative tor Inoperative USA only:
The tire pressure monitor is faulty.
X Visit a qualified specialist workshop. Display
messages
241On-board computer and displays Z