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post #191 of 198 (permalink) Old 09-26-2010, 05:31 AM
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I bought a 57 plate Q7 in May 2010, 4 brand new 21" Pirelli Rosso's fitted by the dealership. I have now done 15K of hard driving on these tyres, no sign of uneven wear, but they are close to needing to be replaced. Probably about another 2k left on them. Not brilliant, but better than what I expected. My car has had the suspension mod carried out, I drive on high pressure settings for full load (I do carry a lot of kit) and I leave the suspension in auto mode all the time.

I've also had to replace the rear pads after 12K, which is abit annoying.

I was quite reluctant to buy a Q7 after all the horror stories I had read about tyres and it ss going to cost me about £1100 every 4-5 months, but the S8 I owned before that was pretty much the same on tyres. 20K or so then needing replacing.

I've owned 5 other brands of 4WD SUV's and never had to replace the tyres on them and very rarely the brake pads. But again this is supposed to be a performance/sports SUV and not a true 4WD like the landcruisers/troopers.

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post #192 of 198 (permalink) Old 09-26-2010, 12:34 PM
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Having now done some 30k kilometer with the summer tires, they are still in good conditions, assuming they will at least do another 15-20k. Although some fast 'Autobahn' use
It seems that V8-Q7 have a different setup and /or suspension - most of the tire problems I have heard of affect the 3.0 TDI engines. Maybe the 3.6 as well, but they are hardly sold in Germany. I have AAS build in.

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Q7 4,2 FSI, 2007
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post #193 of 198 (permalink) Old 09-26-2010, 08:16 PM
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Quote:
Originally Posted by craigyb View Post
I bought a 57 plate Q7 in May 2010
I read about cars with various number plates, i.e. your 57. What does that mean? In Oz a car will be described by its year of manufacture, or by its model number, but that's it. I'm sure you didn't buy the 1957 model.

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My car has had the suspension mod carried out, I drive on high pressure settings for full load (I do carry a lot of kit) and I leave the suspension in auto mode all the time.
What is the suspension mod?

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I've also had to replace the rear pads after 12K, which is abit annoying.
There are alternatives from the aftermarket, so the cost won't have to be the Audi OEM pricing.


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I've owned 5 other brands of 4WD SUV's and never had to replace the tyres on them and very rarely the brake pads. But again this is supposed to be a performance/sports SUV and not a true 4WD like the landcruisers/troopers.
But your S8 was a genuine performance car, and the chewing gum tyres are needed to maximise the experience. It would be horrid with hard, cheapies, on board. But, the performance/sports side of the Q7 is more in marketing than anything else. There are any number of SUVs with similar output to the Q7 (ok, perhaps not the V8s, but they are prohibitively expensive here). I've had my share of sports sedans too, and the only times I've ever experienced wear on the outside of a tyre it was associated with lousy adjustment.
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post #194 of 198 (permalink) Old 11-11-2010, 06:01 PM
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I am sorry if what I am about to ask is a repeat but this thread is getting soooo long...but good.

I am about to acquire a Q7 3.0 tdi. The vehicle was sat in its splendor on the forecourt on 4 slicks, which prompted me to do some research on the tyre (tire) wear problems and the correct spelling of tyre (tire) but thats for another day.

My questions revolve around the way the vehicle suspension is aligned. This car goes up and down on its air suspension about 60mm. This must affect the camber setting. If you check alignment high (which I believe is the Audi recommendation, sorry not got the vehicle yet so not sure what this corresponds to on the MMI) at speed it lowers and probably increases its camber significantly toe-in probably remains unchanged. I am sure it is a camber issue as most tires wear dead smooth on outside edge. I intend to ask my alignment garage if they can tell me how adjusting height is affecting the alignment. Dynamic position seems to be closest to the high speed height but I think this may still be 25mm higher. Can we adjust camber on this vehicle? and what height should we align at?

Thanks for a great thread, I fully intend to up my pressures above the 40 psi mark, My existing car A8 4.2Q 2002 on 20" runs on 44 psi all round - I doubt the Q7 will hurt that much over the pot-holes in the UK!

For those interested the UK licence plate start with two letters which sort of designate the area, then two numbers the first can be a 0 - march or 5 - september followed by the year so MA57 ABC would be Manchester, September 2007, ABC are random letters. in 2010 it all went wrong so we are now at MA60ABC as MA50ABC has already been used. Any guesses as to what is next, probably MA11ABC.

Last edited by cnixon; 11-11-2010 at 06:15 PM. Reason: adding information about UK 'plate' notation
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post #195 of 198 (permalink) Old 04-12-2011, 03:37 PM
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tyres

done over 10,000 on my replacement tyres on my q7 and tyres look new with plenty tread. tyre brand are general grabbers
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post #196 of 198 (permalink) Old 05-03-2011, 04:35 AM
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done over 10,000 on my replacement tyres on my q7 and tyres look new with plenty tread. tyre brand are general grabbers
well i believed the same untill my tyres gave up on me. finaly went for a couple of Michelins to get a smooth life.


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post #197 of 198 (permalink) Old 08-25-2011, 05:21 PM
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Originally Posted by Wil View Post
While in the market for a Q7, and not yet an owner, I decided to read the forums to find out what issues, if any, actual Q7 owners were experiencing.

Reading this forum, I have a few simple questions...
1. It seems if tyre or tire wear is a problem for the Q7s patrolling the freeways of the UK. Is this true?
2. What brand of tyre or tire does your Q7 come with upon delivery?
3. Do you think the composition of the trye or tire has anything to do with it?
I mean the Q7 is a really heavy car, isn't it?

Lastly I live in the US, does any US drivers have issues with tyre or tire wear?

Thanks in advance, Wil
I just check the tread on my Q7 (Original Factory Tires), the front tires are 6/32 inside, center and outside, my rear tires are 7/32 inside, center and outside. I currently have 28,212 miles and live in the Southwest where the weather stays at 100 degrees or hotter most of the summer.
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post #198 of 198 (permalink) Old 11-29-2011, 03:08 PM
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Just changed my Goodyear Eagle F1 Asymetrics 275/45 R20 after 21,000 miles on 2007 4.2TDi. Even wear across treads on all four tyres.

Ran the whole time with raised tyre pressures set for full load (see inside fuel filler cover) and suspension set to Dynamic. Also had 4 wheel alignment carried out before fitting them after reading horror stories.

I'm happy with 21k, as I barely get that from my 3.0 A4 quattro, or Fabia VRS.

Common themes through this thread seem to be that higher pressures decrease wear, and 4.2 seems to give better wear than 3.0.

It makes sense to me that the higher pressure would allow the centre of the tyre tread to bear more of the cars weight and take wear away from the edges of the treads, which is where most posts report the accelerated wear is occurring?
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