This was an issue with my vehicle when I went to pick it up from the PO. All signals were dead. He replaced the flasher relay. This also made the antenna and sunroof operable . Additional circuits must run through the same relay.

__________________
-- Chris

'95 E300, 216k miles, Silver Surfer
'05 E320 CDI, 138k miles
'07 S550 4matic, 69k miles

Gone but not forgotten:

'76 300D, 350k miles?, SOLD in 1995
'75 240D, 300k miles, SOLD in 1991