Could also be that the contacts and/or socket are dirty or corroded. Had the same thing with the rear indicator on the 280, flashed fast as if burned out, but was working. Careful cleaning of the contacts and socket cured the problem.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.