Hi, now that I fixed my turbo, "thanks to you" I am ready for the GP problem, what is happening is this the relay and light comes on one minute after I turn the key on and then off after start, then a minute later comes on again for a minute and goes off, this is happening for the past 2 years, one more thing the light still comes on a minute later even if I dint wait for the GP to start the engine.

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1994 ~ S420


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1998 Monaco Dynasty 40'
1994 S420, 1999 Ford ClubWagen

Start by testing the glow plugs

Glow plugs link thread

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1985 300SD
1983 300D
2003 Volvo V70

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Sounds like the relay is bad. I'd check the rest of the system first to rule it out cause a GP or a fuse is much cheaper than a new relay.

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