stop start MERCEDES-BENZ CLA 2014 Owner's Guide

SmartKey to position2or3and then press
to confirmStart, timing is continued.
Resetting the current lap
XStop the RACETIMER.
XPress theorbutton to select
Reset Lap.
XPressto reset the lap time to "0".
Deleting all laps
If you switch off the engine, the RACETIMER
is reset to "0" after 30 seconds. All laps are
deleted.
You cannotdelete individual stored laps. If
you have stopped 16 laps, the currentlap
does nothave to be reset.
XReset the currentlap.
XPressto confirmReset.
Reset Race Timer?appears in the
multifunction display.
XPress thebutton to selectYesand
press thebutton to confirm.
All laps are deleted.
Overall statistics
RACETIMER overall evaluation
Total time driven
"Average speed
!Distance covered
Maximum speed
This function is shown if you have stored at
least one lap and stopped theRACETIMER.
XPressoron the steering wheel
to select theAMGmenu.
XPress thebutton repeatedly until the
overall evaluation is shown.
Lap statistics
Lap
Lap time
"Average lap speed
!Lap length
Top speed during lap
This functionis only available if you have
stored at least two laps and have stopped the
RACETIMER.
XPressoron the steering wheel
to select theAMGmenu.
XPress thebutton repeatedly until the
lap evaluation is shown.
Each lap is shown in a separate submenu.
The fastest lap is indicated by flashing
symbol.
XPress theorbutton to select a
different lap evaluation.
Menus and submenus211
On-board computer and displays
Z

Engine
Display messagesPossible causes/consequences and
Solutions

Check Coolant See
Operator's Manual
The coolant level is too low.
!Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
XAdd coolant, observing the warning notes before doing so
(Ypage 283).
XIf coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop.
\rThe fan motor is faulty.
XAt coolant temperatures below 248 ‡ (120 †), drive to the
nearestqualified specialist workshop.
XAvoid subjecting the engineto heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.
\r
Coolant Too Hot
Stop Vehicle Turn
Engine Off
The coolant is too hot.
Awarning tone also sounds.
GWARNING
Do notdrive when yourengine is overheated. Thiscan cause some
fluids which may have leaked into the engine compartmentto
catch fire.
Steamfrom the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 153).
XWaituntil the engine has cooled down.
XMake sure thatthe air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
XDo not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †).
Otherwise, the engine could be damaged.
XPay attention to the coolant temperature display.
XIf the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †).
Display messages227
On-board computer and displays
Z

Display messagesPossible causes/consequences and
Solutions
Blind Spot Assist
Currently
Unavailable See
Operator's Manual
Blind Spot Assistis temporarily inoperative. Possible causes are:
Rthe sensors are dirty.
Rfunction is impaired due to heavy rain or snow.
Rthe radar sensor system is outside the operating temperature
range.
Rthe radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellowindicator lamps also light up in the exterior
mirrors.
When the causes stated above no longer apply, the display
message disappears.
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 (Ypage 153).
XCleanthe sensors (Ypage 289).
XRestart the engine.
Blind Spot Assist
Inoperative
Blind Spot Assist is defective.
The yellowindicator lamps also light up in the exterior
mirrors.
XVisit a qualified specialist workshop.
Park Assist
Canceled
The driver's door is open and the driver's seat belt has not been
fastened.
XRepeatthe 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.
XWhile steering intervention is active, make sure that the
multifunction steering wheel is not touched unintentionally.
The vehicle has started to skid and ESP®has intervened.
XUse Active Parking Assist again later (Ypage 178).
Display messages231
On-board computer and displays
Z

Display messagesPossible causes/consequences and
Solutions
Park Assist
Inoperative
You have just carried out a large number of turning or parking
maneuvers.
Active Parking Assistwill become available again after
approximately ten minutes (Ypage 178).
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 defective.
XVisit a qualified specialist workshop.
DISTRONIC PLUS OffDISTRONIC PLUS has been deactivated (Ypage 164). If it was
deactivated automatically, a warning tone also sounds.
DISTRONICPLUSNow
Available
DISTRONIC PLUS is operational again after having been
temporarily unavailable. You can now reactivate DISTRONIC PLUS
(Ypage 164).
DISTRONIC PLUS
Currently
Unavailable See
Operator's Manual
DISTRONIC PLUS is temporarily inoperative. Possible causes are:
Rfunction is impaired due to heavy rain or snow.
Rthe sensors in the radiator trim are dirty
Rthe radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
Rthe system is outside the operating temperature range.
Rthe on-board voltage is too low.
Awarning tone also sounds.
When the causes stated above no longer apply, the display
message disappears.
DISTRONIC is operational again.
If the display message does notdisappear:
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 153).
XClean the sensors in the radiator trim (Ypage 289).
XRestartthe engine.
232Display messages
On-board computer and displays

Tires
Display messagesPossible causes/consequences and
Solutions
Check
Tire Pressure Soon
Canada only:
The tire pressure loss warningsystem has detected a significant
loss in pressure.
Awarning tone also sounds.
GWARNING
With tire pressures which are too low, there is a riskofthe
following hazards:
Rthey may burst, especially as the load and vehicle speed
increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 153).
XCheck the tires and, if necessary, follow the instructions for a
flat tire (Ypage 295).
XCheck the tire pressures and, if necessary, correct the tire
pressure.
XRestart the tire pressure loss warning system when the tire
pressure is correct (Ypage 319).
CheckTirePressure
Then Restart Run
Flat Indicator
Canada only:
The tire pressure loss warning system generated a display
message and has not been restarted since.
XSet the correct tire pressure in all four tires.
XRestart the tire pressure loss warning system (Ypage 319).
RunFlatIndicator
Inoperative
Canada only:
The tire pressure loss warning system is faulty.
XVisit a qualified specialist workshop.
Correct Tire
Pressure
The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 320).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 322).
234Display messages
On-board computer and displays

Display messagesPossible causes/consequences and
Solutions
ToDeselectPorN,
Depress Brake and
Start Engine
You have attempted to shift the transmissionto positionRorD
without starting the engine.
XStart the engine.
XDepress the brake pedal.
iIt is only possible to shift the transmission from positionPto
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, you can move the DIRECT SELECT lever but the
parking lock remains engaged.
iAt transmission fluid temperatures below4 ‡ (20 †) you
can only shift out of positionPinto another transmission
position when the engine is running.
Apply Brake to
Shift from 'P'
You have attempted to move the transmission selector lever to
positionR,NorDwithout depressing the brake pedal.
XDepress the brake pedal.
Transmission Not
in P
Risk of Vehicle
Rolling Away
The driver's door is open and the transmission is in positionR,N
orD.
Awarning tone also sounds.
XShift the transmission to positionP.
XSecure the vehicle against rolling away (Ypage 153).
Service Required
DoNotShiftGears
Visit Dealer
You cannotchange the transmission position due to a malfunction.
Awarning tone also sounds.
If transmission positionDis selected:
XDrive to a qualified specialist workshop without shifting the
transmission from positionD.
If transmission positionR,NorPis selected:
XNotify a qualified specialist workshop or breakdown service.
Only Sift to 'P'
when Vehicle
is Stationary
The vehicle is moving.
XPull overand stop the vehicle safely as soonas possible, paying
attention to road and traffic conditions.
XShift the transmission to positionP.
Reversing Not
Possible Service
Required
The automatic transmission is malfunctioning. You cannot back
up.
XVisit a qualified specialist workshop.
Display messages237
On-board computer and displays
Z

Safety systems
ProblemPossible causes/consequences and
Solutions
(USA only)
(Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
There is not enough brake fluid in the brake fluid reservoir.
GWARNING
The braking effect may be impaired.
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. Do not continue driving
under any circumstances.
XSecure the vehicle against rolling away (Ypage 153).
XDo not add brake fluid. Adding more will not remedy the
malfunction.
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction
display.

The yellow ABS warning
lamp is lit while the
engine is running.
ABS (Anti-lock Braking System) is deactivated due to a
malfunction. Therefore, BAS (Brake Assist), COLLISION
PREVENTION ASSIST, COLLISION PREVENTION ASSIST PLUS,
ESP®(Electronic Stability Program), the HOLD function and hill
start assist, for example, are also deactivated.
ATTENTION ASSIST is deactivated.
GWARNING
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
affected. 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.
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that other
systems, such as the navigation system or the automatic
transmission, will not be available.
242Warning and indicator lamps in the instrument cluster
On-board computer and displays

Engine
ProblemPossible causes/consequences and
Solutions

The yellow Check
Engine warning lamp
lights up while the
engine is running.
There may be a malfunction, for example:
Rin the engine management
Rin the fuel injection system
Rin the exhaust system
Rin the ignition system
Rin the fuel system
The emission limit values may be exceeded and the enginemay
be running in emergency mode.
XHave the vehicle checked as soon as possible at a qualified
specialist workshop.
iIn some states, you must immediately visit a qualified
specialist workshop as soon as the yellow CheckEngine warning
lamp lights up.This depends on the locally applicable legal
requirements. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving.


The yellow reserve fuel
warning lamp lights up
while the engine is
running.
The fuel level has dropped into the reserve range.
XRefuel at the nearest gas station.


The yellow reserve fuel
warning lamp flashes
while the engine is
running.
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
XCheck that the fuel filler cap is correctly closed.
XIf the fuel filler cap is not correctly closed:close the fuel filler
cap.
XIf the fuel filler cap is closed:visit a qualified specialist
workshop.
\r
The red coolant
warning lamp lights up
while the engine is
running and the coolant
temperature gage is at
the start of the scale.
The temperature sensor for the coolant temperature gage is
defective.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 153).
XConsult a qualified specialist workshop.
248Warning and indicator lamps in the instrument cluster
On-board computer and displays

ProblemPossible causes/consequences and
Solutions
\r
The red coolant
warning lamp comes on
while the engine is
running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be
malfunctioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
XObserve the additional display messages in the multifunction
display.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 153).
XLeave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
XCheck the coolant level and add coolant (Ypage 283). Observe
the warning notes.
XIf you need to add coolant more often than usual, have the
engine coolant system checked.
XMake sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
XDo not start the engine again until the coolant temperature is
under 248‡(120 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.
\r
The red coolant
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
The coolant temperature has exceeded 248 ‡ (120 †). The
airflow to the engine radiator may be blocked or the coolant level
may be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive whenyour engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Vapor from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
XObserve the additional display messages in the multifunction
display.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 153).
Warning and indicator lamps in the instrument cluster249
On-board computer and displays
Z

Checking the oil level using the oil
dipstick
ExampleXPull oil dipstickout of the dipstick guide
tube.
XWipe off oil dipstick.
XSlowly slide oil dipstickinto the guide
tube to the stop, and take it out again.
If the level is between MIN mark"and
MAX mark, the oil level is correct.
XIf the oil level has dropped to MIN mark
"or below, add 1.1 US qt (1.0 liter) of
engine oil.
Adding engine oil
GWARNING
If engine oil comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury.
Make sure that engine oil is notspilled next
to the filler neck. Let the engine cool down
and thoroughly clean the engine oil off the
components before starting the engine.
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
!Only use engine oils and oil filters that
have been approved for vehicles with a
service system. You can obtain a list of the
engine oils and oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
center.
Damage to the engine or exhaust system is
caused by the following:
Rusing engine oils and oil filters that have
not been specifically approved for the
service system
Rreplacing engine oil and oil filters after
the interval for replacementspecified by
the service system has been exceeded
Rusing engine oil additives.
!Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off.
Example: engine oil capXTurn capcounter-clockwise and remove
it.
XAdd engine oil.
If the oil level is at or below the MIN mark
on the oil dipstick, add 1.1 US qt(1.0 liter)
of engine oil.
XReplace capon the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
XCheck the oil level againwith the oil
dipstick (Ypage 282).
Further information on engine oil
(Ypage 348).
282Engine compartment
Maintenance and care