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My car is a TDI, 1

Tiny
ANONYMOUS
  • MEMBER
  • 2000 VOLKSWAGEN BEETLE
  • 18,400 MILES
My car is a tdi, 1.9 liter. When I turn the key on my dash light for the glow plugs does not come on. When the light does not come on my car wont start. The glow pluigs are about 6 months old.












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Wednesday, October 31st, 2012 AT 6:37 AM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Possible controller. Before jumping to this, check the fuses with a test light. If all are ok, get it checked to verify

Roy
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Wednesday, October 31st, 2012 AT 11:15 AM
Tiny
EXOVCDS
  • MECHANIC
  • 1,883 POSTS
If the Check Engine Light does not come on when the key is in the ON position, then your ECM Power Supply Relay is no good.

The ECM turns ON the Glow Plug Light. If the ECM is not getting Power, then the ECM can not turn ON the Glow Plug Light.

The glow plugs are not needed to start the TDi in temperatures above 44F, but the ECM is needed to make the engine run.

Thomas
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Wednesday, October 31st, 2012 AT 2:36 PM

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