Problems with the key/remote control
Problem Possible causes/consequences and MM Solutions
It is no longer possible
to lock the vehicle
using the remote
control.
The turn signals do not
flash when the vehicle
is locked.
The doors are not closed properly.
X
Close the doors properly and lock the vehicle again.
The central locking system has malfunctioned.
X
Lock the vehicle using the folding key (Y page 66).
X
Have the central locking system checked as soon as possible
at a qualified specialist workshop.
It is no longer possible
to lock or unlock the
vehicle using the
remote control.
The key battery is weak or discharged.
X
Point the remote control at the driver's door handle from very
close range and press the % or & button.
If this does not work:
X
Replace the key battery (Y page 69).
Or
X
Lock the vehicle using the folding key (Y page 66).
The remote control is faulty.
X
Lock the vehicle using the folding key (Y page 66).
X
Have the key checked at a qualified specialist workshop.
The key cannot be
turned in the ignition
lock.
The steering lock has jammed mechanically.
X
Remove the key and insert it again into the ignition lock. Turn
the steering wheel from side to side while doing so.
The engine cannot be
started using the key.
The on-board voltage is too low.
X
Switch off all non-essential consumers, such as interior lighting,
and try to start the engine again.
If this does not work:
X
Check the starter battery and charge it if necessary
(Y page 266).
Or
X
Jump-start the vehicle (Y page 278).
Or
X
Consult a qualified specialist workshop.
You have lost a key.
X
Have the key deactivated at a qualified specialist workshop.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the mechanical locks replaced.
70
Key
Opening and closing