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Engine blew-up after service

Tiny
GUSTAF KRANCK
  • MEMBER
  • 2009 AUDI Q5
  • 2.0L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 50,000 MILES
My vehicle was for regular service at official Audi-service in Marseille, France (expat). Immediately after, when driving from the service, the engine had a strange noise with unstable sound. I recorded it and called the service. They said use 98oct gasoline. We drove it for 18 miles and then the 'engine' exploded. It was towed back to the service company and it was concluded that 2 spark plugs had broken and the cylinder was damaged. The whole engine needed to be replaced. The service company refused and now we have been in court 2 years without any finalization. The Audi defense is stating that they cannot be sure the fault was due to servicing so no compensation. Anyone had similar experience? Help?
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Wednesday, September 18th, 2019 AT 4:23 AM

9 Replies

Tiny
ASEMASTER6371
  • MECHANIC
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Good morning.

Did they replace the plugs as part of this service?

The burden of proof is on you to prove they were at fault. What proof do you have it was there fault?

Roy
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Wednesday, September 18th, 2019 AT 5:51 AM
Tiny
GUSTAF KRANCK
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Hi, yes they replaced the plugs. It was full regular service. The engine was normal when I left it for service and sounded like in the video direct afterwards.
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Wednesday, September 18th, 2019 AT 9:18 AM
Tiny
ASEMASTER6371
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Okay, what was there response when you were told one of there plugs caused the failure?

Roy
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Wednesday, September 18th, 2019 AT 9:41 AM
Tiny
GUSTAF KRANCK
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I am trying to find a plausible explanation for the sound. It was recorded directly after service and before the engine 'exploded'.
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Wednesday, September 18th, 2019 AT 9:43 AM
Tiny
ASEMASTER6371
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Can you upload the video?

Roy
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Wednesday, September 18th, 2019 AT 9:45 AM
Tiny
GUSTAF KRANCK
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  • 5 POSTS
I thought I already had but here it is again.
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Wednesday, September 18th, 2019 AT 9:52 AM
Tiny
ASEMASTER6371
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From what I hear, that could either be a bad bearing or when they changed the plugs, something fell into one cylinder.

I would have an independent third party to examine the engine and determine the failure. Then can pursue legal action against them.

Roy
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Wednesday, September 18th, 2019 AT 10:09 AM
Tiny
GUSTAF KRANCK
  • MEMBER
  • 5 POSTS
Thanks, actually the cylinders were opened an measured - 2 having expanded and nothing was seen there. The sound I think could be wrong ignition timing - wondering what causes it and if it is such - then that could maybe cause too much pressure and hence plug breakage. Do you know if Audi is doing ignition software update when doing a regular service?
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Wednesday, September 18th, 2019 AT 10:18 AM
Tiny
ASEMASTER6371
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Not that I am aware of. There is no TSB for it listed.

If the timing changed the valves would be hitting pistons. Was there any valve damage?

Roy
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Wednesday, September 18th, 2019 AT 10:26 AM

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