The lighter socket in my 300sd ashtray in the front is shorted out - zero ohms to ground across both pins. This is with the lighter pop out removed.

Discovered this when I replaced the CCU and found the wire disconnected on the ash tray. Reconnected. Fuse blew. Now I know why.

I cannot find a spare lighter socket that fits this unit - it seems to be an integrated pop up unit - I assume the only recourse is to buy a whole ashtray assembly on stealbay?