So I had issues with my air suspension and I believe I still do.It seems to sits right parked and measures/calibrated normal and also drives normal, no weird tracking issues. I have taken it to several shops for diagnosis and they all tell me its completely normal for my compressor to run EVERY single time the car moves and they see nothing wrong. Almost like talking with Audi (its normal to burn 4 quarts of oil every 100 miles) What I mean by every time. When I start the car and go, once it reaches 25mph the compressor comes on and runs its cycle (40 - 50 secs) I have not noticed an over heating/run issue. But when I turn it off and start it again and go, the compressor cycles again, every time. This used to only happen the first thing in the morning or if called to lift the vehicle a couple of times from reservoir.

Anywho, I had my General Grabber A/T3s tires I had mounted on 07/05/2024 at 166,433 mi (tread depth 13/32) and first rotation on 08/21/2025 at 175,583 mi with the tread depth listed below. Normal wear. I had changed the compressor and valve in December 2025. When I went in to rotate at 180K in April, the wear was super severe and following set of numbers! Now these tires may be older variety/date and may be the issue, as there was no problems prior and the only thing that changed was suspension parts.
I called General tire and they are going to warranty them, at only 14K miles, they should.

Whats your thoughts? Possible wheel bearings? Would that throw a code or 2?
Thank you in advance.

LF= 9 - 7
RF= 9 - 7
LR= 8 - 4
RR= 7 - 2

 

Man that sucks! I'm glad General Tire is standing by their product, though! Try a chalk test...easy, cheap, and you can visually see the tire contact...it should help you visualize if anything is indeed off; sounds like something is askew.

 

Could just be bad luck, JB.

What I found when trying to get our '15 w/air suspension aligned after installed some new tires was that the alignment shop selected for 'steel suspension' rather than air suspension, which has different requirements to align the wheels correctly. It should also be aligned while in the height setting/air suspension mode you typically use most, in order to avoid abnormal tire wear.

That said, those rear tires really took a big hit in wear compared to the fronts, which only makes sense really if you are towing over them or carrying max loads in the vehicle, and possibly with them being underinflated for the loading of the vehicle, which will give you fairly even wear across tread surface with this type of control arm based suspension the Q7 uses, but while also creating accelerated wear on the tires.

So far as your air suspension goes, what the shops are telling you is technically correct, and if you've done the static, leak-down tests post compressor/valve-block swap and all looks good/measures good after sitting overnight, then your bags are holding are/check valves are good shape, etc. The only question then is do you have a loss of reserve air pressure in the tank or the front accumulator that could cause your compressor to be running immediately every time you start the car and drive off. IMHO, it would be abnormal in my experience for the compressor to run for that long unless it is refilling the system.

Like I've shared with you prior, on our '15, I swapped compressor & valve block after it wouldn't seal back up again, then it still had a small air leak due to my not cutting of the ends of the air lines square to meet the requirements of the new valve block (push-type connectors), so had to remove all lines from it and cut them off square using a cutter designed for that specific purpose; a cheap tool, but necessary, Then it sealed up and all was right with the world again; no more air leaks, no more funky compressor cycles or 'whooshes' from the air tank when unlocked/opened the door, and no more height losses overnight.

The tires heavy wear issue could just be the tires or a possibly be a conglomeration of multiple different factors all converging at once during that rotation interval; a perfect storm, if you will.

I've had wonky tire wear on my steel susp Q7 just from a tire losing air from it not sealing against the rim properly after they did a flat repair on it to remove screw and patch it up, etc.