Not mine-- a friend's. Glow plug light remains on for several minutes after the car starts. Anyone else have this happen? I did a search, btw. Oops, but I can't edit the title to provide more detail. Sorry....

Plenty of threads on this already...here's one:

e300d glow plug problem

Just use the search terms Glow plug light stays on and start reading...you will soon learn it is probably just a bad glow plug or wiring or relay.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

I wouldn't say JUST a glow plug. That could be a $3K bill even at an independent.

The problem may just be a glow plug...the solution however might be the big bill if you're not lucky enough to get it out in one piece.

So this got me to wondering...has anyone experienced a dealership service department breaking off a glow plug? It seems lots of DIY and indy shops have problems with them but is there some trick the dealers know that makes them less likely to break them?

When I had mine done and watched the tech he said one trick is to work on a hot engine, and take the intake manifold off as fast as possible to keep it hot. Apparently they are much less likely to get stuck if you take them out when the head is good and hot. All 6 of mine came out without incident and it is about 2 years since they were done but I know next time I face this I will heed this advice and do it when the engine is good and hot.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

I have scheduled the GP R&R job every 2 yrs. I had a tech with me when the GP got stuck and had to have the head removed.

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