Car shaking after piston replacement, dealer wants to change valves and gasket

[Mrska]

I have a 2010 Audi A5 2.0T, have had it for about 3 years, car was running great but was burning oil. Car is out of warranty but Audi did a full piston replacement under the extended warranty because of the oil consumption issue about a month ago and car has been running fine since then.

Was driving on the highway when the check engine lights started flashing out of nowhere, car started shaking. Pulled it over, car was shaking and running really rough at idle. Got it towed back to Audi to see what they say.

They say best case scenario is it needs a valve and gasket replacement which is 20 hours of labour and going to cost me about $5000 with parts. They said it would be covered if it was related to the warranty job and piston replacement but the technician insists that its not. Worst case scenario they say if that doesn't fix it they need to replace cylinder heads which will be $7700 on top of that.

Any advice? I'm trying to argue that it's gotta be related to something they did because I never had any issues with the car (other than burning oil) for years and all of a sudden this happens a month after the piston replacement.

Would it be worth replacing the entire engine? How much roughly would that cost me?

[JoshDub]

Replacing the entire engine? A shit ton.

The dealer isn't in the business of repairing, they just replace. If you're paying out of pocket then you need to find a good indy.

[B-Time]

Same thing happened to my friends A4. Audi replaced the engine at no cost. But the service manager is a friend of ours.

[szaer]

Same thing happened to my friends A4. Audi replaced the engine at no cost. But the service manager is a friend of ours.

Yea may need to call up Audi of Canada, document everything etc. and see what they can do. If that doesn't work out, Indy shop, never at the dealer for non-warranty work

[wootek]

also 2010 A5, got the pistons and ring replaced and No problem since than it's been going on strong for 3yrs. but hope things get resolved. Good Luck.