Engine Misfire Due to Failed Ignition Coil and/or Spark Plug on Audi Allroad Quattro

An ignition coil or spark plug may fail unexpectedly resulting in an engine misfire and possible illumination of the Check Engine Light.

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Average mileage: 129,300 (69,900–180,000)
Exhaust & Emissions affected: 2.7L V6 Turbo
5 model years affected: 2001, 2002, 2003, 2004, more2005
8 people reported this problem
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problem details
2004 Audi Allroad Quattro 180,000 mi,
Had one faulty coil, after changing plugs. Went ahead and replaced all 6. Plus new plugs. Parts coils $28x6 Parts plugs NGK $8x6 Car runs like new!
2001 Audi Allroad Quattro 138,000 mi,
All of a sudden my car started to vibrate immensely. Called my reliable mechanic (Audi genius) and he diagnosed over the phone that it was my coils. Taking it in today to have replaced.
2 of the coils failed at different times leaving me stranded and audi didn't provide a loaner or cover the tow