Key

[Ziggie]

My passat has trouble opening the central locking. The garage replaced key 12 months ago.

The key has now intermittently stopped unlocking ( locks ok) but I can unlock it using the other key.

a garage reported that the alternate key had failed yo unlock for him . 
 

he used the backup method of opening the door.

The new key cost £400 + service charge to register it to the car.

Is this a common problem?

any DIY method of fixing?

Edited September 12, 2022 by Ziggie
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[Volkswagen Owners Club]

If the key is proving to be faulty then it is worth replacing but I would go to a specialist automotive locksmith who can programme the key to your car a lot cheaper than a garage, and especially a VW dealership