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Glow Plug LIght is Flashing

4864 Views 10 Replies 5 Participants Last post by  MBeige
I just encountered this problem today and it has never happened before. When I turn the car on and the engine is running the glow plug light will flash for about 30 or so seconds. Does this mean they need replacing? Or did a cable come off? Please help. I dont wanna drive it if its unsafe like this.
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· Registered
1959 220S cabriolet, 1983 240D original owner, 1999 E300 turbo diesel, 1988 560SL, 2003 SLK320
3,530 Posts
Yes, get Bosch or Beru not Autolite. If you have an ohm meter, it is very easy to test the glow plugs. A good cold plug will test at 0.6 ohms, but if they've got 150K on them, it's not a bad idea to just replace them all. Still you can test the old ones and keep the good ones for spares.


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