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Problems with the key
Problem
You can no longer lock
or unlock the vehicle
using the key.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO.
You have lost a key.
You have lost the emer-
gency key element.
Possible causes/consequences and M M Solutions
The key battery is discharged or nearly discharged.
Check the key battery (
X
(
page 75).
Y
If this does not work:
Lock (
page 80) or unlock (
X
Y
emergency key element.
The key is faulty.
Lock (
page 80) or unlock (
X
Y
emergency key element.
Have the key checked at a qualified specialist workshop.
X
There is interference from a powerful source of radio waves.
Lock/unlock the vehicle using the remote control function of
X
the key. To do this, hold the key as close as possible to the
vehicle and press the % or & button.
If the vehicle can also not be locked/unlocked using the remote
control function:
Lock (
page 80) or unlock (
X
Y
emergency key element.
There is a fault with KEYLESS-GO.
Lock/unlock the vehicle using the remote control function of
X
the key.
Have KEYLESS-GO checked at a qualified specialist workshop.
X
If the vehicle can also not be locked/unlocked using the remote
control function:
Lock (
page 80) or unlock (
X
Y
emergency key element.
Have KEYLESS-GO checked at a qualified specialist workshop.
X
Have the key deactivated at a qualified specialist workshop.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
X
Report the loss immediately to the vehicle insurers.
X
If necessary, have the locks changed as well.
X
page 75) and replace it if necessary
Y
page 80) the vehicle using the
Y
page 80) the vehicle using the
Y
page 80) the vehicle using the
Y
page 80) the vehicle using the
Y
Key
77
Z
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