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[it4rz4n]

Hi all, I am hoping someone here can help me make sense of the tire wear I am experiencing on my 2006 330xi, with the OEM staggered 18" set up.

Below is an image of one of the rear tires. I added the tread depths that I measured and I have another picture of the side wall.


And below is an image of the front tire. This one is wearing much worse and the belts are really showing.



To try and solve the problem I got an alignment, and even though pretty much everything was off, nothing was off by very much.


I haven't driven on the new alignment yet, but I just have a hard time believing my problem is fixed.

Any insight from someone would be very appreciated.

[TheeGovernor]

The amount of toe in the front was high. Front tires shouldnt cord now.

[it4rz4n]

Originally Posted by TheeGovernor

The amount of toe in the front was high. Front tires shouldnt cord now.

Would 0.20 degrees make that much of a difference? If so it's good to hear that it's finally fixed

[r4dr]

Think about it this way: you have 10 times less toe up front now. 0.20* is a big difference when your final result is 0.02*.

[it4rz4n]

Alright that definitely makes sense now.
How often does toe go out of alignment if it has to be that bang on?

[Emilime75]

Improper tire inflation can also cause some of the issues shown in your photos. Center of the tire wearing more than the shoulders can be over inflation, while shoulders wearing more than the center can be under inflation.

[it4rz4n]

Originally Posted by Emilime75

Improper tire inflation can also cause some of the issues shown in your photos. Center of the tire wearing more than the shoulders can be over inflation, while shoulders wearing more than the center can be under inflation.

Alright I'll definitely keep an eye on that in the future. I didn't think I ever over inflated them though.

[Emilime75]

Only way to really know is with an air pressure guage.