2013 MERCEDES-BENZ CLA-CLASS engine
[x] Cancel search: enginePage 244 of 352
Display messagesPossible causes/consequences and M Solutions4
Check eng. oil
lev. when next
refuellingThe engine oil level has dropped to the minimum level.
A warning tone also sounds.XCheck the oil level when next refuelling, at the latest
( Y page 284).XIf necessary, top up the engine oil ( Y page 285).XHave the engine checked at a qualified specialist workshop if
the engine oil needs topping up more often than usual.æ
Reserve fuel levelThe fuel level has dropped into the reserve range.
The auxiliary heating cannot be operated.XRefuel at the nearest filling station.çThere is very little fuel in the fuel tank.
The auxiliary heating cannot be operated.XRefuel at the nearest filling station without fail.¸
Replace air
cleaner elementVehicles with a diesel engine: the engine air filter is dirty and must
be replaced.XVisit a qualified specialist workshop.!
Clean fuel filterVehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.XVisit a qualified specialist workshop.
Driving systems
Display messagesPossible causes/consequences and M SolutionsÀ
Attention Assist
Drowsiness detec‐
tedBased on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. A warning tone
also sounds.XIf necessary, take a break.
During long journeys, take regular breaks in good time so that you
get enough rest.
À
Attention Assist
inoperativeATTENTION ASSIST is inoperative.XVisit a qualified specialist workshop.242Display messagesOn-board computer and displays
ProCarManuals.com
Page 247 of 352
Display messagesPossible causes/consequences and M SolutionsBlind Spot Assist is temporarily inoperative. Possible causes:
R the sensors are dirty.
R the 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.
The yellow 9 indicator lamps also light up in the exterior mir-
rors.
Once the causes listed above no longer apply, the display message
goes out.
Blind Spot Assist is operational again.
If the display message does not disappear:XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XSecure the vehicle against rolling away ( Y page 162).XClean the sensors ( Y page 291).XRestart the engine.Blind Spot Assist
inoperativeBlind Spot Assist is faulty.
The yellow 9 indicator lamps also light up in the exterior mir-
rors.XVisit a qualified specialist workshop.Park Assist cancel‐
ledThe driver's door is open and the driver's seat belt has not been
fastened.XRepeat the parking process with the seat belt fastened and the
driver's door closed.You inadvertently touched the multifunction steering wheel while
steering intervention was active.XWhile steering intervention is active, make sure not to touch the
multifunction steering wheel.The vehicle has started to skid and ESP ®
has intervened.XUse Active Parking Assist again later ( Y page 186).Display messages245On-board computer and displaysZProCarManuals.com
Page 248 of 352
Display messagesPossible causes/consequences and M SolutionsPark Assist inoper‐
ativeYou have just carried out a large number of turning or parking
manoeuvres.
Active Parking Assist will become available again after approx-
imately ten minutes ( Y page 186).XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XSwitch off and restart the engine.
If the display message continues to be displayed:
XVisit a qualified specialist workshop.PARKTRONIC is faulty.XVisit a qualified specialist workshop.DISTRONIC PLUS offDISTRONIC PLUS has been deactivated ( Y page 173). If it was
deactivated automatically, a warning tone also sounds.DISTRONIC PLUS
available againDISTRONIC PLUS is operational again after having been tempo-
rarily unavailable. You can now reactivate DISTRONIC PLUS
( Y page 173).DISTRONIC PLUS cur‐
rently unavailable
See Owner's ManualDISTRONIC PLUS is temporarily inoperative. Possible causes:
R the function is impaired due to heavy rain or snow.
R the sensors in the radiator trim are dirty
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.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
A warning tone also sounds.
Once the causes listed above no longer apply, the display message
goes out.
DISTRONIC is operational again.
If the display message does not disappear:XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XSecure the vehicle against rolling away ( Y page 162).XClean the sensors in the radiator trim ( Y page 291).XRestart the engine.246Display messagesOn-board computer and displays
ProCarManuals.com
Page 252 of 352
Display messagesPossible causes/consequences and M SolutionsTyre pressure mon‐
itor currently
unavailableDue to a source of radio interference, no signals can be received
from the wheel sensors. The tyre pressure monitor is temporarily
malfunctioning.XDrive on.
The tyre pressure monitor restarts automatically as soon as the
cause has been rectified.Wheel sensor(s)
missingThere is no signal from the tyre pressure sensor of one or several
wheels. The pressure of the affected tyre is not displayed in the
multifunction display.XHave the faulty tyre pressure sensor replaced at a qualified spe-
cialist workshop.Tyre press. moni‐
tor inoperative No
wheel sensorsThe wheels fitted do not have a suitable tyre pressure sensor. The
tyre pressure monitor is deactivated.XFit wheels with suitable tyre pressure sensors.
The tyre pressure monitor is activated automatically after driv-
ing for a few minutes.Tyre pressure mon‐
itor inoperativeThe tyre pressure monitor is faulty.XVisit a qualified specialist workshop.
Vehicle
Display messagesPossible causes/consequences and M SolutionsTo start engine,
shift to either P
or NYou have attempted to start the engine with the transmission in
position R or D.XShift the transmission to position P or N.Auxiliary battery
MalfunctionThe auxiliary battery for the automatic transmission is no longer
being charged.XVisit a qualified specialist workshop at the next opportunity.XUntil then, set the automatic transmission to position P before
you switch off the engine.XBefore leaving the vehicle, apply the electric parking brake.Depress brake to
start engineYou have attempted to start the engine with the transmission in
position N without depressing the brake pedal.XDepress the brake pedal.250Display messagesOn-board computer and displays
ProCarManuals.com
Page 253 of 352
Display messagesPossible causes/consequences and M SolutionsTo shift out of P
or N
depress brake and
start engineYou have attempted to shift the transmission to position R or D
without starting the engine.XStart the engine.XDepress the brake pedal.
i It is only possible to shift the transmission from position P to
the desired position if you depress the brake pedal. Only then
can the parking lock be deactivated. If you do not depress the
brake pedal, the DIRECT SELECT lever can still be moved but
the parking lock remains engaged.
i At transmission fluid temperatures below Ò20 † you can only
shift out of position P into another transmission position when
the engine is running.
Depress brake to
shift out of posi‐
tion PYou have attempted to move the transmission selector lever to
position R, N or D without depressing the brake pedal.XDepress the brake pedal.Risk of vehicle
rolling
Transmission not
in PThe driver's door is open and the transmission is in position R, N
or D.
A warning tone also sounds.XShift the transmission to position P.XSecure the vehicle against rolling away ( Y page 162).Without changing
gear,
consult workshopYou cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position D is selected:XDrive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R, N or P is selected:
XConsult a qualified specialist workshop.Only select Park
(P) when
vehicle is station‐
aryThe vehicle is moving.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XShift the transmission to position P.Reversing not
poss. Consult work‐
shopThe automatic transmission is malfunctioning. You cannot drive in
reverse.XVisit a qualified specialist workshop.Display messages251On-board computer and displaysZProCarManuals.com
Page 254 of 352
Display messagesPossible causes/consequences and M SolutionsTransmission mal‐
functionThe automatic transmission is malfunctioning.XVisit a qualified specialist workshop.Transmission mal‐
function StopThe automatic transmission is malfunctioning.XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XSecure the vehicle against rolling away ( Y page 162).XConsult a qualified specialist workshop.Stop vehicle Shift
to P Leave engine
runningThe automatic transmission has overheated.XDrive on carefully.
If the display message disappears, the automatic transmission
is available again.
If the display message continues to be displayed:
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XSecure the vehicle against rolling away ( Y page 162).XWait until the automatic transmission has cooled off and the
display message goes out.NThe boot lid is open.XClose the boot lid.MThe bonnet is open.
A warning tone also sounds.GWARNING
The open bonnet may then block your view when the vehicle is in
motion.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XApply the electric parking brake.XClose the bonnet.Active bonnet mal‐
function See Own‐
er's ManualThe active bonnet (pedestrian protection) is not active due to a
malfunction or because it has already been triggered.XVisit a qualified specialist workshop.CAt least one door is open. A warning tone also sounds.XClose all doors.252Display messagesOn-board computer and displays
ProCarManuals.com
Page 255 of 352
Display messagesPossible causes/consequences and M Solutionsj
Check trailer
hitch lockThe trailer tow hitch is not correctly engaged.
A warning tone also sounds.XStop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.XApply the electric parking brake.XEngage the trailer coupling's ball coupling in the end position
( Y page 203).
Otherwise, the trailer may detach itself.
Ð
Power steering mal‐
function See Own‐
er's ManualThe power steering assistance is faulty.
A warning tone also sounds.GWARNING
You will need to use more force to steer.
There is a risk of an accident.
XCheck whether you are able to apply the extra force required.XIf you are able to steer safely: carefully drive on to a qualified
specialist workshop.XIf you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop.&
inoperative Bat‐
tery lowYou have attempted to switch on the auxiliary heating or to acti-
vate a departure time using the on-board computer after operating
the auxiliary heating twice.XLet the engine run for 10 seconds.
The auxiliary heating is operational again.The on-board voltage is too low. The auxiliary heating has switched
itself off or cannot be switched on ( Y page 136).XDrive for a longer distance.
The battery is being charged. The auxiliary heating is operational
again as soon as the on-board electrical system voltage is suf-
ficient.&
inoperative Refuel
vehicleThere is too little fuel in the fuel tank. The auxiliary heating cannot
be switched on ( Y page 136).XRefuel at the nearest filling station.Display messages253On-board computer and displaysZProCarManuals.com
Page 256 of 352
Display messagesPossible causes/consequences and M Solutions&
inoperative See
Owner's ManualThe auxiliary heating has a temporary malfunction or is faulty.XWhen the vehicle is on a level surface and the engine has cooled
down, make up to four attempts to switch on the auxiliary heat-
ing, waiting several minutes between each attempt
( Y page 136).XIf the auxiliary heating does not switch on, consult a qualified
specialist workshop.Telephone No
serviceYour vehicle is outside the network provider's transmitter/
receiver range.XWait until the mobile phone operational readiness symbol
appears in the multifunction display.¥
Top up washer fluidThe washer fluid level in the washer fluid reservoir has dropped
below the minimum.
i If, during the winter months, you do not add antifreeze to the
washer fluid, it may freeze in the washer fluid container. In this
case, the Top up washer fluid display message may appear
in the multifunction display.XTop up the washer fluid ( Y page 286).Wiper malfunction‐
ingThe windscreen wipers are defective.XVisit a qualified specialist workshop.Hazard warning
lamps malfunction‐
ingThe hazard warning lamps are faulty.XVisit a qualified specialist workshop.
Key
Display messagesPossible causes/consequences and M Solutions+
Key does not
belong to vehicleYou have put the wrong key in the ignition lock.XUse the correct key.+
You need a new keyThe key needs to be replaced.XVisit a qualified specialist workshop.254Display messagesOn-board computer and displays
ProCarManuals.com