Leaderboard

Owned an A6 AVANT since 2014. Just refreshed to 2019 model. Already looking forward to the bills after a 9 month gap.

In my opinion the valve stems are undoubtedly bent, in which case the pistons and conrods may well be damaged also. Take the head off and inspect the pistons crowns closely. If there is any sign of contact between valves and crowns you will then need to remove the sump and pull the pistons out to inspect the rods.

Welcome to the forum you'll find the members on here are a friendly and helpful bunch 🙂

Why would you want the the time and expense of repairing it yourself when you are entitled to get the vendor to do it free?

Apologies Neal, I can now see I’m interfering rather than attempting to fulfil my objective of trying to be helpful. Kind regards, Gareth.

Darryl's point about a dual mass flywheel is not one that had occurred to me. I agree that if you have a DMF it would be worth changing; if it isn't just clean the old one.

Hello Neal, Before you start pulling the head off, can I ask you to pass the following logic through the mind:- You have zero compression an all cylinders. Can you absolutely satisfy yourself that all the valves are opening and (very importantly) fully (in caps) closing. If the answer to that is yes, then for the ‘head gasket to have gone’, and to explain your zero compression, the gasket must have failed at all three points between the cylinders. Likely ?? Even if it had, I might still expect some slight compression. My way forward would be to borrow/hire a camera and have a look down each spark plug hole in turn - having first ensured both valves on that cylinder appear to be fully closed. Kind regards, Gareth.

Old post I know, however this may help someone out in the future. My avant does this every couple of years, one of the doors will play up and not unlock with the fob, lean through and pull the internal handle and then it’ll open from the exterior handle. Turns out that the lock/unlock motors in the locking mechanism get carboned up and stop working. Strip them down, clean the motor armatures with some meths and a scotch pad and they work for another couple years. Pics attached.