Bowyer

Hi all,

My 1997 c230 is having unlocking/locking issues. When the 'unlock' button on the remote is pressed, the green light lights up. When pressed again to lock the car, the red light lights up. The problem is the locks don't lock or unlock. When I push the button on the dash, the locks don't move either. Also, I don't hear any sound from the pump when I pushed the button on the dash.

I am suspecting the central locking pump is bad. Or a fuse. Is the fuse(s) on it's own circuit? What fuse and location powers the system? My interior lights work and come on when I unlock the car with the remote.

Also, is there any DIY videos or write ups that explain the procedure to change the pump out? I have looked and haven't found one.

Thanks for any help.