You have a fuse out...Even if they look good, replace them all. I have fixed so many cars with this. Just trust me and do it. You can spray some contact cleaner on the terminals while there.
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Benzmac:
Donnie Drummonds
1992 500E (very soon I hope
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM