change key battery MERCEDES-BENZ CLS 2014 Owners Manual

approximately six seconds until thebattery
check lamp flashes twice (Ypage 79).
iIf thesettingofthelockingsystem is
changed within thesignal range of the
vehicle,pressingtheorbutton:
Rlocks or
Runlocksthevehicle
The SmartKey nowfunctionsasfollows:
XTo unlock thedriver's door:pressthe
buttononce.
XTo unlock centrally:pressthe
buttontwice.
XTo lock centrally:pressthebutton.
The KEYLESS-GO function is changed as
follows:
XTo unlock thedriver's door:touch the
inner surface of thedoor handle on the
driver'sdoor.
XTo unlock centrally:touch theinner
surface of thedoor handle on thefront-
passenger door or therear door.
XTo lock centrally:touch theoutersensor
surface on one of the door handles.
XTo restorethe factorysettings:press
and hold down theandbuttons
simultaneously for approximately six
seconds until the batterychecklamp
flashes twice (Ypage 79).
Mechanicalkey
General notes
If thevehicle can no longer be lockedor
unlocked withtheSmartKey, use the
mechanical key.
If you use themechanical keytounlock and
open thedriver'sdoor or thetrunk lid, the
anti-theftalarm system will be triggered
(Ypage 74).
There are several ways to turnoff the alarm:
XTo turn the alarm off with the
SmartKey:press theorbutton
on the SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO:press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flapwill not be unlocked
automatically.
XTo unlock thefuel filler flap:insert the
SmartKey intothe ignition lock.
Removing themechanical key
Release catch
Mechanical key
XPush release catchin the direction of
the arrow and at the same timeremove
mechanical keyfromthe SmartKey.
78SmartKey
Opening and closing

SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive
substances. If batteries are swallowed, it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children. If
abattery is swallowed, seek medical attention
immediately.
Mercedes-Benz recommends that you have
the batteries replaced ataqualified specialist
workshop.
Checking the battery
XPress theorbutton.
The battery is working properly if battery
check lamplights up briefly.
The battery is discharged if battery check
lampdoes not light up briefly.
XChange the battery (Ypage 79).
iIf the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing theorbutton:
Rlocks or
Runlocks the vehicle
iYou can getabattery at any qualified
specialist workshop.
Replacing the battery
You requireaCR20253Vcell battery.
XTake the mechanical key out of the
SmartKey (Ypage 78).
Battery compartmentcover
Mechanical key
XPress mechanical keyinto the opening
in the SmartKey in the direction of the
arrow until battery compartmentcover
opens. Do not hold battery compartment
coverclosed while doing so.
XRemove battery compartmentcover.
$Battery
XRepeatedly tap the SmartKey against your
palm until battery$falls out.
XInsert the new battery with the positive
terminal facing upwards. Usealint-free
cloth to do so.
XMake sure that the surface of the battery is
free of lint, grease and other contaminants.
SmartKey79
Opening and closing
Z

Problems with the SmartKey
ProblemPossible causes/consequences andSolutions
You cannot lock or
unlock the vehicle
using the SmartKey.
The SmartKey battery is discharged or nearly discharged.
XTry again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press theor
button.
If this does not work:
XCheck the SmartKey battery (Ypage 79) and replace it if
necessary (Ypage 79).
XLock (Ypage 84) or unlock (Ypage 84) the vehicle using
the mechanical key.
The SmartKey is faulty.
XLock (Ypage 84) or unlock (Ypage 84) the vehicle using
the mechanical key.
XHave the SmartKey checked ataqualified specialist workshop.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO.
There is interference fromapowerful source of radio waves.
XLock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press theorbutton.
There isamalfunction with KEYLESS-GO.
XLock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press theorbutton.
XHave KEYLESS-GO checked ataqualified specialist workshop.
If this does not work:
XCheck the SmartKey battery (Ypage 79) and replace it if
necessary (Ypage 79).
XLock (Ypage 84) or unlock (Ypage 84) the vehicle using
the mechanical key.
You have lost a
SmartKey.
XHave the SmartKey deactivated ataqualified specialist
workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
SmartKey81
Opening and closing
Z

Display messagesPossible causes/consequences andSolutions

Power Steering
Malfunction See
Operator'sManual
The powersteering is malfunctioning.
Awarning tone also sounds.
GWARNING
You will need to use moreforce to steer.
Thereisariskofanaccident.
XCheck whetheryou are able to apply the extraforce required.
XIf you are able to steer safely:carefully drive on toaqualified
specialist workshop.
XIf you are unable to steer safely:do not drive on. Contact the
nearest qualified specialist workshop.
Phone 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.

Check Washer Fluid
The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
XAdd washer fluid (Ypage 309).
SmartKey
Display messagesPossible causes/consequences andSolutions

Key Does Not
Belong to Vehicle
You have put the wrong SmartKey in the ignition lock.
XUse the correctSmartKey.

TakeYourKeyfrom
Ignition
The SmartKey is in the ignition lock.
XRemove the SmartKey.

ObtainaNew Key
The SmartKey needs to be replaced.
XVisitaqualified specialist workshop.

ReplaceKeyBattery
The batteries of the KEYLESS-GO key are discharged.
XChange the batteries (Ypage 79).
262Display messages
On-board computer and displays