My pump on my car went out before. Its in the trunk. When you try locking the doors do you hear any sound coming from the trunk?
The pump for the central locking system is located in the right-rear of the luggage compartment under the luggage compartment trim.
After the car has been parked for a lengthy time and/or after replacing the central locking system pump, the central locking system will not function properly until prompted repeatedly.
When the system is operating correctly, all locks will close within 2 seconds .
If the pump operates for longer than 5 seconds , there is a leak in the system.
When there is a leak in the system, the pump must not run for more than 30 seconds . The pump's control unit must shut it off at this point.
All the lock actuators are equipped with special vacuum line connectors that must lock when plugged in.
But first
check Fuse 38 - Its the Luggage compartment light, central locking system 15A
And fuse 6 - Central locking system 5A
Check your owners book for fuse number locations
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