Question about 2003 Volkswagen Jetta TDI

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Glow plugs stay and wont shut off

2001 jetta tdi when you turn the key on the light comes on but the glow plugs dont turn on. Then when the car is running the glow plugs stay and wont shut off and then they eventually burn out. I changed the temp sensor but didn't fix it. The dealer has no idea whats wrong.

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Your problem sounds like the glow plug relay is faulty. It sees to be stuck in the closed position. It is mounted on the fuse board.
John

Posted on Feb 27, 2009

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The glow plug light is often NOT accurate (even with a new timer unit fitted) as to the time of heating, and you will almost certainly find that power will flow to the plugs for quiet some time after the light goes out. This is not unusuall with The Jetta Tdi.
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I hope this helps you sort out this problem
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1 Answer

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