2014 MERCEDES-BENZ CLS brake sensor

Display messagesPossible causes/consequences andSolutions

Check Brake Pad
Wear
The brakepads/liningshavereached their wear limit.
XVisitaqualified specialist workshop.

mbrace Inoperative
Oneormoremain features of thembrace system are
malfunctioning.
XHavethembrace system checkedimmediately ataqualified
specialist workshop.
PRE-SAFE
Inoperative See
Operator'sManual
ImportantfunctionsofPRE-SAFE®have failed.All other occupant
safetysystems, e.g. air bags, remain available.
XVisitaqualified specialist workshop immediately.
PRE-SAFE
Functions
CurrentlyLimited
See Operator's
Manual
PRE-SAFE®Brake is temporarily inoperative.
Possible causes are:
Rfunction is impaired due to heavy rain or snow.
Rthe sensors in the radiator grill and the bumper are dirty.
Rthe radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stationsorother sources of electromagnetic radiation.
RAMG vehicles: ESP®is deactivated.
Rthe system is outside the operating temperature range.
Rthe on-board voltage is too low.
When the causes stated above no longer apply, the display
message disappears.
PRE-SAFE®Brake 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 rollingaway (Ypage 167).
XClean the sensors in the radiator grill and the bumper
(Ypage 315).
XRestartthe engine.
XAMG vehicles: reactivate ESP®(Ypage 70).
PRE-SAFE
Functions Limited
See Operator's
Manual
PRE-SAFE®Brake is inoperative due toamalfunction. BAS PLUS
or the distance warning signal may also have failed.
XVisitaqualified specialist workshop.
Display messages241
On-board computer and displays
Z

Display messagesPossible causes/consequences andSolutions
DISTRONIC PLUS
Currently
Unavailable See
Operator'sManual
DISTRONIC PLUSistemporarily inoperative.
Possible causes are:
Rfunction is impaired due to heavy rain or snow.
Rthe sensors in the radiator grill and the bumper 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 thecauses statedabovenolonger apply, thedisplay
message disappears.
DISTRONICisoperational again.
If thedisplay 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 rollingaway (Ypage 167).
XClean the sensors in the radiator grill and the bumper
(Ypage 315).
XRestartthe engine.
DISTRONIC PLUS
Inoperative
DISTRONIC PLUS is defective.
The following may have also failed:
RBAS PLUS (Brake Assist System PLUS)
RPRE-SAFE®Brake
Awarning tone also sounds.
XVisitaqualified specialist workshop.
DISTRONIC PLUS
Suspended
You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
XRemove your foot from the accelerator pedal.
DISTRONIC PLUS
---mph
An activation condition for DISTRONIC PLUS is not fulfilled.
XCheck the activation conditionsfor DISTRONIC PLUS
(Ypage 177).
256Display messages
On-boar dc omputer and displays

Display messagesPossible causes/consequences andSolutions
TirePress.Monitor
Currently
Unavailable
Due toasource of radiointerference,nosignals can be received
from the wheelsensors.The tire pressure monitor is temporarily
malfunctioning.
XDrive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved.
TirePress.
Sensor(s) Missing
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.
XHave the faulty tire pressure sensor replaced ataqualified
specialist workshop.
Tire Pressure
Monitor
Inoperative No
Wheel Sensors
The wheels mounted do not haveasuitable tire pressure sensor.
The tire pressure monitor is deactivated.
XMount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
forafew minutes.
TirePress.Monitor
Inoperative
The tire pressure monitor is faulty.
XVisitaqualified specialist workshop.
Vehicle
Display messagesPossible causes/consequencesandSolutions
Shiftto'P'or'N'
To Start Engine
You have attempted to start the engine with the transmission in
positionRorD.
XShift the transmission to positionPorN.
Auxiliary Battery
Malfunction
The auxiliary battery for the automatic transmission is no longer
being charged.
XVisitaqualified specialist workshop.
Apply Brake
to Shift from 'P'
You have attempted to move the transmission selector lever to
positionD,RorNwithout depressing the brake pedal.
XDepress the brake pedal.
Risk of Rolling
Away
Vehicle Not in 'P'
The driver's door is open and the transmission is in positionR,N
orD.
Awarning tone also sounds.
XShift thetransmission to positionP.
XSecure thevehicle against rolling away (Ypage 167).
260Display messages
On-boar dc omputer and displays