New Cylinder Head!!! Options????
#1
AudiWorld Junior Member
Thread Starter
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MY 2018 q7 started to shake bad (engine) and got the warning message "Drive system malfunction". Took it to the dealer where I've had all routine maintenance completed. They said cylinder 4 had 0 compression and scope found a damaged/cracked exhaust valve and will have to replace the cylinder head. 80k miles. Just had new plugs and belts put on less than a month ago. Waiting to hear back on estimate and options.
Is this common? Any recommendations/ options?
Is this common? Any recommendations/ options?
#2
AudiWorld Super User
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this is definitely not common at all. this might be the first exhaust valve or cylinder head issue I have heard on a Q7 with the 3.0T in almost 5 years of ownership and I have been on these forums for a while. keep us posted and best of luck!
#3
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Dealer came back with $15K estimate for new cylinder head. I obviously am not happy that a luxury car would blow a valve/cylinder at 80K that was properly maintained, and concerned about further issues even if this was fixed.. Also, told them its very strange this happened less than a month after they replaced the plugs. They are going to discuss with Audi HQ to see what other options are available.
#4
AudiWorld Junior Member
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That sucks! I can relate as I'm working through a similar issue. I'm awaiting a response from Audi of America. I'll post an update to my thread when I hear back.
Good luck!
-Tom
Good luck!
-Tom
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warrior84 (06-01-2023)
#6
AudiWorld Junior Member
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I'm still working through the issue. AoA got back to me a said that anything beyond the warranty is at the discretion of the dealership. I then stopped in a spoke with the service manager. He's worked with my service advisor to build a case and they have a meeting with AoA to discuss the help. I expect to hear back this week.
How's your case?
How's your case?
#7
AudiWorld Junior Member
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They offered to repair the cylinder head for 4500, original estimate was 15k. Also offered me a trade in of 17500 as is. Dealer didn't have any cars I wanted so I told them to move forward with the repairs.
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#8
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Engine: 3.0 TFSI CREC
When new spec: 160 - 200 psi
Wear limit spec: 145 psi
My cylinders, 1-6 (psi): 105, 110, 115, 115, 110, 0
Details here: Beware of oil consumption
This is what I decided to do: Selling my Audis for cheap and leaving the brand
I am adding this thread to the list of threads discussing this issue in my main thread.
#9
AudiWorld Junior Member
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I read your thread. My Q7 was drinking oil for a little over a year prior to this, 1 qt every 500-1K miles. I reported this to Audi but they acted like it was normal. Maybe this is why they are going all electric as it seems they can't manufacture a gas engine.
#10
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This is such an embarrassment! They could have ditched the turbos and make more reliable naturally aspirated engines that would be less powerful but had a big chip on their shoulder and decided to roll out these crappy engines that are powerful but would die fast and render the whole car unusable. So much for sustainability...