C30 central locking failure

I had a similar problem with my C30. Check the connections to the central locking module first. Like a loose wire on a lamp, it could be something simple. Did you check the fuse box? Which fuses?

I checked the fuse box, but I'm not sure which fuse is for the central locking. The owner's manual isn't clear. Can you tell me which fuse to check?

My fuse was fine; it was a faulty connector. These things happen, especially with temperature changes. If the fuse is good, take it to a workshop. Diagnosis will cost a bit, but it's better than tearing it apart yourself.

I took the C30 to a workshop. It was a defective cable connection to the locking mechanism. The repair, including diagnosis, was 95€, which I thought was reasonable. Thanks for the help!