lhhnick

Just got a 2017 Q7 recently. I have changed the engine oil (CSTRL EDGE 5W-40) and filter by myself. Monitoring the oil consumption now. I have driven 100 miles and I believe it will cost 1 quart in 500 miles.
No smoke, and no leak ( I did not see it so far.) I tested PCV by pulling the engine oil cap out, I can feel the suction and the engine stopped. no weird sound.
So any advice on what is the next step? Maybe engine flush will be the next step?

ecbc1

I'm sorry that you have the burning oil problem, but its a common problem. If you live close to an Audi dealer, might be able to get it topped off for free. Mine does that.

Here's the thread on the issue you're having....
https://www.audiworld.com/forums/q7-...-year-3024173/

meyergsr

Welcome to the burning oil club. How many miles are on your Q7?
The only thing that may slow it down is new pistons and rings. Better bet would be to trade for different vehicle.

lhhnick

Thanks, but my Q7 is 126000 miles now, I think it is out of the warranty.

lhhnick

Thanks, it is126000 miles now, I just got this car and want to use it to improve my handy skill. So not ready yet for the new pistons or trade new car lol

meyergsr

A quart every 500 miles is a huge issue. Good luck fixing that without dropping in another engine.

n00bkiller944

Where are you located? Sounds like you need a shop or someone to get an eye on it

Newaudiguy23

Same problem as yours on a 2017 Q7 but at 81k miles. Literally about to go get a qt of oil to top up. I had the diagnostics done on the car from the Audi dealership and they didn't find any leaks or problems. Service manager said you might have to replace the engine lol and it costs 13-15k. Any help would be appreciated

TheBudgetBaller

I have done some extensive research on the matter and the most cost efficient and easy way out of this oil consumption issue is to use local transit or take up cycling. This may be something I have to endure in the future if the car isnt paid off and the engine ends up failing.

kelisko

Just DON'T SUDDENLY FLOOR THE GAS PEDAL in any circumstances or avoid doing so as much as possible. Catastrophic failure occurs after it was floored in many cases and especially in my case. However some people reported the failure occurred without them flooring it. Check here what's happening to 28+ others with the same issue: https://www.audiworld.com/forums/q7-...024173/page42/

These engines fail following a history of increasing oil consumption. The cylinders lose compression and the car loses power and consumes excessive amounts of oil. There are reports of broken pistons, broken valves and cracked cylinder heads as people kept using the cars like that. This is the result of excessive crankcase pressure caused by lost compression in cylinders, coupled with lighter build materials (pistons, rings, valves, etc.) for easy engine power.

Of course there are exceptions but it seems the majority of owners past 60,000 miles are having this issue. I have done some research online for used cars (A6, A7, Q7) with this exact same engine and have checked their CARFAX reports. A lot of them were auctioned or suddenly listed for sale after repeated oil changes or spark plug replacements which hides this very issue.