Rear Wheels Inside Wear

[piaabro210]

Well you guys were right!

I went ahead and posted the alignment report done by the dealership and as you can see things were not that way off as I would have thought.

The first couple of pictures you see on this thread are the right rear tire and the one I'm most surprise to see that nothing was off as far as the camber & toe.

I guess it just a combination of X5 aggressive stance, soft tires, and horrible FL roads!

I guess I should start looking for either a different make of tire and/or saving for the next similar set! Thanks for the help.

[CharlieHustleX5]

You could always try picking up a set of Rogue Engineering camber plates to correct the negative camber a bit, which would possibly cause the toe to change in the direction you want?

[piaabro210]

Ok folks here I am at 32,320 total miles on my 08 X5 and needing my 3rd set of tires!! Check out these pics of my Bridgestone Duelers runflats that I switched to after the Dunlaps. I'm entertaining the idea of going with Non-runflats this time around to maybe stretch out the wear of the tires.

I'm also wondering if this is about normal for owing a X5? As far as only getting about 15K to 20K worth of miles on tires. It just doesn't seem right! Thanks for the help

[Oscarguitar]

I just don't understand this level of tyre wear. I got 49,500 miles out of a set of 19 in Michelin Damaris. All even wear and there was still life in them, just got fed up waiting to replace them. The suspension is standard Sport suspension on a 2005 X5 (with the rear camber). I hear that the new X5s eat tyres but on the E53 can last a long time. I always keep a close eye on the tyre pressures, 32 psi all round apart from when i have a load on.

I try to drive it like a rear wheel drive car, slow in, straighten up accelerate out, it handles well and sits it tyres four square. If I try to pile in to corners too fast, squeal round and boot it too soon, well it is going to chew them up. The cars do weigh the best part of 2 tonnes, so a little mechanical sympathy is called for. Physics will win in the end.

These are just my observations, but I find some of the tyre wear rates on this board hard to comprehend.

[Oscarguitar]

BTW, those tyres look under inflated, arched in the middle, could just be the way the picture is taken, but that can really increase inside tyre wear, especially with the camber.

[piaabro210]

That's just the angle of the picture. After going through the Dunlaps so fast I'm pretty religious with the proper tire pressure. 32psi in the front and 35 in back just like OEM recommedations.

[Oscarguitar]

If you have nothing loaded 35 in the back could be too high. If it is just you 32 psi in the rear is fine. Mind you that doesnt explain the inner wear. Run flats on my 335d had the same problem, so i ditched them and went to ps2s. Night and day for ride and grip and wear. Handling more progressive, but slightly softer.

[HAMAR]

my tires was like this after ca.20.000 miles

[ard]

It's actually pretty simple:

With the camber on a BMW you need the TOE set to minimum. (What happens, is that with the camber AND the cross toe, the inner edge of the tire is just brutalized.)

On page one someone posted their alignments...the toe is HORRIBLE. 0.08, 0.10..way to high.

But, you say, how can this be?? It is in BMW spec...

Answer: BMW spec is terrible. People dont realize this, and just have dealers "check the alignment" and blindly follow the print out. Really bad idea

Have the TOE set to 0.01 on both rear wheels and your tire life will triple. Set the front to the minimum too. Tell them what you want, demand that they set it precisely. (How do you think we set up race cars? "just somewhere in the range will be fine"... nope)

It really is that simple.

A

[wsybert]

Originally Posted by ard

It's actually pretty simple:

With the camber on a BMW you need the TOE set to minimum. (What happens, is that with the camber AND the cross toe, the inner edge of the tire is just brutalized.)

On page one someone posted their alignments...the toe is HORRIBLE. 0.08, 0.10..way to high.

But, you say, how can this be?? It is in BMW spec...

Answer: BMW spec is terrible. People dont realize this, and just have dealers "check the alignment" and blindly follow the print out. Really bad idea

Have the TOE set to 0.01 on both rear wheels and your tire life will triple. Set the front to the minimum too. Tell them what you want, demand that they set it precisely. (How do you think we set up race cars? "just somewhere in the range will be fine"... nope)

It really is that simple.

A

Well said. I run 2.5 deg of neg camber on my track car, and no inside uneven wear. My rear toe is almost 0.

Soft or hard tires....won't matter, will just vary the time it takes to happen, if the alignment is out.
Bill