Question about 2002 Volkswagen Jetta TDI
Despite what you may read from other comments....The glow plug light is
simple a multi function warning light and IS among many othed
things in fact used to warn of brake light and brake light switch
failure. Therefore it can NOT be treated as glow plug problems only.
I have worked on V.W for many years and have encountered this problem many times. You should get the OBD codes read. This will reveal the exact problem...and there may be more than one
You can contact your V,W agents if you wish and check to see if I am correct.
Best of luck
Posted on Nov 07, 2009
I had the same problem occur today. I have known since last year that I have been driving the car for a year with the timing slightly off, but, this glow plug light thing didn't occur until today.
I have never heard of a car having a light for a burned out tail light. On top of that, I would seriously doubt that the Germans, who engineer plenty of great cars, would link a burned out tail light with a glow plug light that is supposed to be directly linked to a glow plug in the engine.
I know you have a '97, however, the principle should still apply to the very issue that I had with my 2002 Jetta TDI today. The light brought up the code that the needle lift sensor on my #3 fuel injector had tripped (which, the #3 one is the only one with this sensor). I checked the sensor resistance and found that the sensor did not go bad, so, I figured it was directly linked to the timing issue I have had for a year and never bothered to fix. I just got done fixing the timing issue, I DID NOT reset the computer, and the glow plug light didn't ever come on the first time I fired up the car.
In closing, treat glow plug codes somewhat like spark plug codes: they are related to either the plug itself, misfired cylinder (for whatever reason in a diesel), too much fuel in a cylinder, or emission issues.
I hope that helps, but, I couldn't help to comment considering it being mentioned that it could be linked to a burned out bulb. I have never had the check engine light come on just because I ran out of windshield wiper fluid.....except once....
Posted on Apr 06, 2009
THERE ARE TWO POSSIBLE SOLUTIONS FOR THIS. EITHER YOUR BRAKE LIGHTS ARE OUT BECAUSE OF THE BULBS, OR THE BRAKE SWITCH IS BAD. THE TDI USES THE BRAKE SWITCH TO BRING DOWN THE IDLE OF THE VEHICLE.
Posted on Jun 17, 2009
Thanks to all. Just fixed the problem with a replacement of $11 brake light switch. FYI these were on recall for the JETTA TDI because of bad contact material. If you get the flashing glow plug and both tail lights are out i would try the bulbs and then the switch before i get the dealer to soak my wallet.
Posted on Nov 22, 2009
Could be a burned taillight, or a number of things. Check tdiclub.com for a better explanation; it's a great resource for all us tdi owners.
Posted on Mar 30, 2009
Had the same prob, it ended up being the wiring to the starter rmotor+the starter motor. hope this helps
Posted on Jun 21, 2009
I had the flashing glowplug icon in my dashboard. I checked my rear brake lights, and it turned out both lamps were burnt out. A quick 10 minute change of the rear brake light lamps fixed the problem.
Posted on Nov 02, 2009
Were r the glow plug how do I get them out
Posted on Jun 15, 2013
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