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

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.

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    Average mileage: 132,664 (100,000–165,328)
    Exhaust & Emissions affected: 1.9L 4 Cylinder Diesel Turbo, 2.0L 4 Cylinder Diesel Turbo
    4 model years affected: 1996, 1997, 2004, 2005
    6 people reported this problem
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    problem details
    2004 Volkswagen Passat TDI 165,328 mi,
    Check Engine light illuminates indicating an emissions issue. Code 2 glow plug problem. Waiting on dealership response.