The other day the glow plug light in my 85 300d coupe started flickering. It happens with some regularity, though I don't see a particular pattern. And it comes and goes, like every few minutes.

Anyone know why it would be doing this?

Thanks,

__________________
Will



72 280SEL
85 300CD 288k
00 E320 Wagon 4-matic 100k
11 E350 Wagon 4-matic 45k

73 VW Westfalia Camper
67 VW Westfalia Camper

66 Porsche 912