Thanks in advance for your help. I'm having trouble with the central locking on my 92 190e. Was working fine until the battery went flat. Noticed I had blown fuse so replaced it but central locking doesn't work off the key or the Cobra alarm remote. When pushing the locks down they all seem to be hard to push so I presume the vacuum is working ok. I have a funny feeling it has something to do with wiring but where do I start?
