Strange, I never had these come off in my years of owning a few Audis so afraid I don't have any ideas!
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Its the covers that are going, I'd thought the torque setting of the actual nuts is not relevent. The nuts themselves aren't loose..
I've lost a few too. I assumed it was when I used the pressure washer to rinse off the snow foam in my cleaning regime as I found one in the foam that accumulated on the drive. I looked up the cost of replacements and they are only sold in sets of 20. At the rate I'm losing them, I can begin to appreciate why you need 20 spares!
They're 17mm, I took one off and measured the inside hexagon, don't know why I didn't think of that before. Yes it is hugely annoying as it started with one on the rear n/s wheel which the dealership replaced. That went so they sent me another which lasted one journey and now others are missing. If I was paranoid I would think someone is stealing them.
Worth checking. The ones for the B7 were 44p each so would be £8.80 for 20.Found these new, genuine Audi ones on fleabay for £16.49 for a full set (20) not sure what they cost via dealers though.
They don't come off that easily so may well be someone with a light touch. This happened to the bolt covers on my Peugeot 206.They're 17mm, I took one off and measured the inside hexagon, don't know why I didn't think of that before. Yes it is hugely annoying as it started with one on the rear n/s wheel which the dealership replaced. That went so they sent me another which lasted one journey and now others are missing. If I was paranoid I would think someone is stealing them.
So there is a locking nut beneath one of them?Yes covers...
I never received a locking wheel nut "key" and keep meaning to figure it out - is that normal?
That's interesting as I see I've lost another one. I did buy some from amazon that were for the b8. Slightly different colour but a very tight fit...Some more info on the disappearing bolt covers. After 9 months, I’ve suddenly started losing mine, 3 to date. So went to my dealer to buy some replacements, much to the surprise of the parts guy who said they shouldn’t just be coming off. He got on the computer, got the part number, got the bits, and off we went to fit them. Only to find the ones on the car we’re different to the ones he got off the shelf. All the covers on all my wheels were a very loose fit and the replacements were a very tight fit......Turns out, the covers fitted on my wheels were for a Q7. The numerical bit of the part number is identical. The only difference is the letter suffix, which is the model identifier. All the covers were replaced with the correct items under warranty. Pat on the back for Vindis Peterborough, great service as usual from them!