Remote locking on A-class not working

[pig.tale]

My a-class remote is working but the central locking is not working. The car is a 1999 avante-garde. Is this an easy fix or a dealer job?

 

[OmniCognateNeutronRangler]

My a-class remote is working but the central locking is not working. The car is a 1999 avante-garde. Is this an easy fix or a dealer job?

Hi Pig Tale. Welcome aboard. Can you be a little more specific about the problem? Are you saying the the remote only opens one door or are you saying the key seems fine but you can't open the doors remotely?