Problem
Possible causes/consequences and
X XSolutions The engine cannot be
started using the key. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating* or inte-
rior 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 272).
or
X Jump-start the vehicle (Y page 276).
or
X Consult a qualified specialist workshop. The engine cannot be
started using KEYLESS
GO*. The key is in the
vehicle. A door is open. Therefore, the key cannot be detected as easily.
X
Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle using the key in the ignition lock. Trailer towing*
Problem
Possible causes/consequences and
X XSolutions The ball coupling can-
not be locked.
The key cannot be
removed from the ball
coupling.
G
Risk of accident
The ball coupling is dirty.
The trailer coupling is damaged.
X Remove the ball coupling and clean it (Y page 203). If the ball
coupling still cannot be locked, remove the ball coupling. It must
no longer be used to tow a trailer, as safe operation is not guar-
anteed.
X Have the entire trailer coupling checked at a qualified specialist
workshop. 248
TroubleshootingPractical advice
* optional
X164_AKB; 2; 3, en-GB
wobuchh,
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