
Replacing the battery1.Remove integrated key from remote con‐
trol.2.Push in the catch with the key, arrow 1.3.Remove the cover of the battery compart‐
ment, arrow 2.4.Insert a battery of the same type with the
positive side facing up.5.Press the cover closed.
Take the used battery to a recycling
center or to your service center.
New remote controls New remote controls are available from the
service center.
Loss of the remote controls Lost remote controls can be disabled by your
service center.
Emergency detection of remote
control
It is possible to switch on the ignition or start
the engine in situations such as the following:
▷Interference of radio transmission to re‐
mote control by external sources e.g., by
radio masts.▷Empty battery in remote control.▷Interference from radio transmissions
through mobile devices in close proximity
to remote control.▷Interference of radio transmission by
charger while charging items such as mo‐
bile devices in the vehicle.
A Check Control message is displayed if an at‐
tempt is made to switch on the ignition or start
the engine.
Starting the engine with emergency
detection of the remote control
M double-clutch transmission: if a correspond‐
ing Check Control message appears, hold the
remote control, as shown, against the marked
area on the steering column and press the
Start/Stop button within 10 seconds while
pressing the brake.
Manual transmission: if a corresponding Check
Control message appears, hold the remote
control, as shown, against the marked area on
the steering column and press the Start/Stop
button within 10 seconds while pressing the
clutch pedal.
If the remote control is not recognized: slightly
change the height position of the remote con‐
trol and repeat the procedure.
Personal Profile
The concept Personal Profile provides three profiles, using
which personal vehicle settings can be stored.
Every remote control has one of these profiles
assigned.
If the vehicle is unlocked using a remote con‐
trol, the assigned personal profile will be acti‐
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mote control is locked inside the vehicle when
the trunk lid is closed.◀
Malfunction
Remote control detection by the vehicle can
among others be malfunctioning under the fol‐
lowing circumstances:▷The battery of the remote control is dis‐
charged. Replace the battery, refer to
page  35.▷Interference of the radio connection from
transmission towers or other equipment
with high transmit power.▷Shielding of the remote control due to
metal objects.▷Interference of the radio connection from
mobile phones or other electronic devices
in direct proximity.
Do not transport the remote control together
with metal objects or electronic devices.
In the case of interference, the vehicle can also
be unlocked and locked from the outside with‐
out remote control, refer to page  39.
For US owners only
The transmitter and receiver units comply with
part 15 of the FCC/Federal Communication
Commission regulations. Operation is gov‐
erned by the following:
FCC ID:
▷LX8766S.▷LX8766E.▷LX8CAS.▷LX8CAS2.▷MYTCAS4.
Compliance statement:
This device complies with part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
▷This device may not cause harmful inter‐
ference, and▷this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modifications or changes to
these devices could void the user's authority to
operate this equipment.
Without remote control
From the outside Locking from the outside
Do not lock the vehicle from the outside
with people inside the car, as the vehicle can‐
not be unlocked from inside without special
knowledge.◀
Remove the key before pulling the door
handle
Before pulling the outside door handle, remove
the key to avoid damaging the paintwork and
the key.◀
Unlock or lock the driver's door via the door
lock using the integrated key, refer to page  34.
The other doors must be unlocked or locked
from the inside.
Alarm system
The alarm system is not armed if the vehicle is
locked with the integrated key.
The alarm system is triggered when the door is
opened, if the vehicle was unlocked via the door lock.
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The adjustment procedure is interrupted:▷When a seat position switch is pressed.▷When a button of the seat and mirror mem‐
ory is pressed.
Activating the setting
1."Settings"2."Doors/key"3."Last seat position autom."
Alarm system
The conceptWhen the vehicle is locked, the vehicle alarm
system responds to:
▷Opening a door, the hood or the trunk lid.▷Movements in the interior.▷Changes in the vehicle tilt, e. g., during at‐
tempts at stealing a wheel or when towing
the car.▷Disconnected battery voltage.
The alarm system briefly signals tampering:
▷By sounding an acoustic alarm.▷By switching on the hazard warning sys‐
tem.▷By flashing the daytime running lights.
Arming and disarming the alarm
system
When you unlock or lock the vehicle, either
with the remote control or via the Comfort Ac‐
cess, the alarm system is disarmed or armed at
the same time.
Door lock and armed alarm systemThe alarm system is triggered when the door is
opened, when the vehicle is unlocked via the
door lock.
Trunk lid and armed alarm system
The trunk lid can be opened even when the
alarm system is armed.
After the trunk lid is closed, it is locked and
monitored again when the doors are locked.
The hazard warning system flashes once.
Panic mode
You can trigger the alarm system if you find
yourself in a dangerous situation.
Press button on the remote control for
at least 3 seconds.
To switch off the alarm: press any button.
Indicator lamp on the interior rearview
mirror▷The indicator lamp flashes briefly every
2 seconds:
The system is armed.▷The indicator lamp flashes after locking:
The doors, hood or trunk lid is not closed
properly, but the rest of the vehicle is se‐
cured.
After 10 seconds, the indicator lamp
flashes continuously. Interior motion sen‐
sor and tilt alarm sensor are not active.
When the still open access is closed, inte‐
rior motion sensor and tilt alarm sensor will
be switched on.▷The indicator lamp goes out after unlock‐
ing:
The vehicle has not been tampered with.Seite 44ControlsOpening and closing44
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Bulb replacement 190 
Bulb replacement, front  191 
Bulb replacement, LED head‐ lights  192 
Bulb replacement, rear  193 
Bulb replacement, xenon headlights  191 
Bulbs and lights  190 
Button, Start/Stop  63 
Bypassing, refer to Jump- starting  199 
C
California Proposition 65 Warning  7 
Camera lenses, care  207 
Camera, rearview cam‐ era  127  
Camera, Side View  129 
Camera, Top View  131 
Can holder, refer to Cuphold‐ ers  153  
Car battery  195 
Carbon ceramic brake M  156 
Car care products  205 
Care, displays  207 
Care, vehicle  205 
Cargo  162 
Cargo area, enlarging  149 
Cargo area partition  49 
Cargo area, storage compart‐ ments  153 
Cargo, securing  163 
Cargo straps, securing cargo  163 
Car key, refer to Remote con‐ trol  34 
Carpet, care  207 
Car wash  204 
Catalytic converter, refer to Hot exhaust system  159 
CBS Condition Based Serv‐ ice  188  
CD/Multimedia, see user's manual for Navigation, En‐tertainment and Communi‐
cation 
Center armrest  152 
Center console  16 
Central locking system  40 
Central screen, refer to Con‐ trol Display  18 
Ceramic brake  156 
Changes, technical, refer to Safety  7 
Changing parts  190 
Changing wheels  195 
Changing wheels/tires  176 
Chassis, electronic  119 
Chassis number, see vehicle identification number  9 
Check Control  78 
Checking the engine oil level electronically  183 
Checking the oil level elec‐ tronically  183 
Children, seating position  60 
Children, transporting safely  60 
Child restraint fixing sys‐ tem  60 
Child restraint fixing system LATCH  62 
Child restraint fixing systems, mounting  60 
Child seat, mounting  60 
Child seats  60 
Chrome parts, care  206 
Cigarette lighter  145 
Cleaning displays  207 
Climate control  136 
Clock  82 
Closing/opening via door lock  39 
Closing/opening with remote control  37 
Cockpit  14 
Combination reel, refer to Turn signals  68 
Combination switch, refer to Wiper system  68 Comfort Access  41 
Compartments in the doors  152 
Compass  143 
Compound brake  156 
Compressor  177 
Computer, refer to On-board computer  87 
Condensation on win‐ dows  138 
Condensation under the vehi‐ cle  160  
Condition Based Service CBS  188 
Confirmation signal  43 
ConnectedDrive, see user's manual for Navigation, En‐
tertainment and Communi‐
cation 
ConnectedDrive Services 
Connecting electrical devi‐ ces  145 
Control Display  18 
Control Display, settings  90 
Controller  18, 19  
Control systems, driving sta‐ bility  116 
Convenient closing with the remote control  38 
Convenient opening with the remote control  37 
Convertible, hardtop  46 
Convertible mode, automatic climate control  137 
Convertible program, auto‐ matic climate control  137 
Coolant  186 
Coolant temperature  82 
Cooling function  137 
Cooling, maximum  137 
Cooling system  186 
Cornering light  95 
Corrosion on brake discs  160 
Cosmetic mirror  145 
Courtesy lamps during un‐ locking  37 Seite 213Everything from A to ZReference213
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