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Volkswagen Jetta TDI Check Engine Light Due to Issues With Glow Plugs/Wiring Harness

 
Volkswagen Jetta TDI Problem
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Model Years Affected: 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 2009, 2013

Exhaust & Emissions Affected: 1.9L 4 Cylinder Diesel Turbo

Average Mileage: 127,480 mi (4,600 mi - 260,000 mi)

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Because of issues with the glow plugs and/or the glow plug wiring harness from the control relay, the Check Engine Light may illuminate. Our technicians tell us there is a service bulletin, not a recall from Volkswagen regarding replacement of the glow plugs on 2004-2005 model years only.

  • Visitor, , 128,000 mi

    Good evening all. I have had this same problem (engine malfunction/check engine light) 3 times now. The first time, I replaced the glow plugs. The second time, the harness was replaced at the dealer (8-12). Today (12-3-12), I found out after spending $98 that the glow plug circuit #1 was bad. The dealer did not even check the glow plug to see if it was bad. I am going to get my car and put a new glow plug in #1 and see if this fixes the check engine light issue. If not, just going to keep on driving it. If there is a notice from VW on this issue, it should be a recall to fix this issue instead of customers having to spend their money on a known problem. Get with it VW!!!!

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  • Visitor, , 90,000 mi

    just had timing belt and water pump replacement. 12 hours later, I now have a #2 glow plug issue. Could it be somethihg the dealer did?

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  •  Rookie

    Not able to pass smog because the check engine light continues to illuminate I have change and corrected all of the problem s ..

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  • Visitor, , 106,600 mi

    The dealer checked the diagnostic code when the light came on and it was for the glow plugs. The engine light came on, however, only when the car was cool. I had to have the glow plugs and wiring harness replaced which cost $648. This issue occurred 4 days after I replaced my timing belt, water pump and thermostat as recommended maintenance. My car is a 2006, not within the range reported with this problem.

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  • Visitor, , 100,000 mi

    I have had this problem before. 1st the VAGs don't always give the exact problem. The common glow plug #3 error code could mean the problem is anywhere in the harness or plug set. In my case I found that replacing only the plug in error did not work. Even if all contacts are clean, the harness is good, and all of the glow plugs are OK, if there is more than a 3ohm difference in impedance between any of the glow plugs the code will not go away. Put the plugs on a meter to find the culprit or if they are a few years old just replace all 4. Then clear the code with a VAG.

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  •  Rookie

    check engine light stays on no matter what maintenace done and has been taking up to three times to start, then sounds rough for 10-15 min. of idle/drive time.
    I just had to replace my ENGINE! AAAGGGHHH Due to blown piston in my 2003/04 jetta desiel wagon. 4/4/2011 and now new different engine same mileageyear put in and has diffucult starts. I'm freaking out it cost me 4,000 to put in different engine.

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  •  Rookie

    rough start or will not start in cold weather. My comp. scanner read code " #1 glow -plug " dealer suggested maybe relay board, we sold a lot lately. but would garentee this would fix the problem. So I don't trust them working on my car, I bought new from them.

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  • My check engine light came on and I took my car to the shop and they said the glow plugs needed replaced I haven't even owned the car 4 months yet.

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  • Visitor, , 247,000 mi

    glow plugs # 3 problem engene light. replaced all glow plugs didn't help

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  •  Rookie

    Hasn't been fixed. Replaced glow plugs(as recommended ) Diagnosis was to repace #2 plug

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