Question about 2002 Volkswagen Jetta TDI

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Cold weather starting problems with battery

When its under 40(F)degrees the car will not start. I warm the glow plugs a few times, and then the battery dies when i crank the engine. Dashboard goes haywire, the clock resets to 1200. I end up jump starting the car. any ideas?

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  • tigerchicoo Dec 22, 2008

    i also have the same problem with a 1.8t, replaced the ignition switch, still have the problem...if i hit the base of the steering wheel colum it will connect and recieve electrical is not a battery problem, possibly a wiring harness problem? any help would be nice...thanks

  • mfresen Dec 22, 2008

    I have the same issue - my dashboard goes nuts, etc. I haven't "checked the battery" yet, but it certainly seems to be electrically-related. From what I can gather, the thickened cold oil makes the engine much more difficult to turn over, and this puts a strain on the battery that it isn't accustomed to. Add to that the cold weather hurting a chemical battery in general, and you've got a car that won't start.

  • Anonymous Mar 25, 2014

    once the weather gets nicer(40 degrees or higher) my car will die and sometimes won't even restartas well as shifting very hard.

  • Anonymous Mar 29, 2014

    the car is swinging but is not starting and there is a red (battery) light on the dashboard



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Have you had the battery checked..Cold weather is the worst enemy on a battery. They work fine in summer but cold will get em.

Posted on Nov 05, 2008


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Yes it does. Let the glow plugs warm up for 7-10 seconds (the light on the panel should go off) and then crank the engine. If the weather is cold, half an hour of running does not warm up the engine completely so you need to use the plugs for the first few startups during a cold day.

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