glow plugs in 1977-240D

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drc - 30 Jan 2006 15:08 GMT

I have had an ongoing problem with glow plugs burning up.....I replace
them and within a couple of months at least 2 have burned out
.......these plugs show signs of overheating......can anyone help?

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Mitchell Knight - 30 Jan 2006 15:37 GMT

I had this issue in my '82 240D, I replaced the glowplug relay and it
never happened again.

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Tiger - 31 Jan 2006 00:22 GMT

Also... the glow plugs are dirt cheap on ebay... like $25 a set of 4... look
for it.

You might find rebuilt relay too there...

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elliott_moore - 01 Feb 2006 18:03 GMT

My 1976 240D showed similar problems, along with a slow pre-heat time.

My local repairman replaced the glow plug system with those from the VW
diesel glow plugs, available as an add-on kit. Has worked beautifully
for years
now - and do I appreciate that 10 second warm up!

Elliott Moore

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trader4@optonline.net - 02 Feb 2006 18:10 GMT

As Mitchell pointed out, this can be a problem with the glow plug relay
and/or circuit that controls the glow plugs. The glow plugs are
supposed to shut off a short period after the engine is running. If a
bad relay is keeping them on all the time, they will burn out quickly.

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