Join Date: Feb 2013
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A ticket has been opened up at AoA. The de-carboning and injector replacement was just done in February. The weird thing about this, is typically when an engine grenades like from a timing belt or something, it will wipe out an entire bank. or multiple cylinders. This is one cylinder, #7, and it drove it right into the top of the block. One cylinder and the entire motor is a pile of crap now. Strange... and I'd be willing to bet something got into it when the top was opened for that work in February.
Nothing to see except the plug from #7... and I've never seen anything like this... also, I now have additional info. Starting in January 2014, my car was showing cylinder 7 misfire faults and did so over 2 years and a number of services. The faults coincide with the the exact cylinder that grenaded... I've updated my case with Audi of America and I should receive a call Monday... so they say.
... I guess there IS some validity to the theory that it is the result of an ongoing problem that caused the misfires over a long time. Valves can stick due to carbon fouling and be impacted by the piston. Not common but it COULD happen.
Audi of America says they are "only willing to cover 30% of parts and labor cost" which is still going to put me around $12,000+... despite a pretty decent history of faults that were unaddressed... I'm at a loss. Not sure what to do... came from BMW only to have a meticulously maintained vehicle, dealer serviced on time at every increment, blow up just over 100,000 miles... not happy.
After weighing all my options and looking high and low for help, I have decided to go ahead with the engine replacement. There was only a couple thousand dollar difference in reman and new so I have opted for a new, crated, straight from Germany motor. Not cheap, but I would have only gotten $1,500-2,000 for it as is and to put myself in a new car would cost much much more... I hope I made the correct decision. The pricetag with Audi's 30% off will be a not so easy to swallow $12k+ with new motor and new clutch (while its open) with a one year warranty or 12k miles.
Additionally, there is a small percentage chance that the current motor can be rebuilt... once its out and opened up I am hoping to find the ultimate cause of why it grenaded and if it can be fixed, great... I don't hold out much hope for this, but it would be nice to have a reason.