BMW E91 330i Suspension, Alignment & tyre shredding - HELP!

[PeterF91]

Hi Guys, I'm from Hungary. I have the same problem with my rear tires inner side is like slick. The camber degree I think is too much. What kind of value do you guys suggest to the rear camber? - 1° ? - 1 ° 10' ? - 1° 30' ? I think - 1° 50' as factory value is too much. Thanks

[helix402]

-1.5 degrees rear camber will not cause any wear problems. It will be due to something else.

[PeterF91]

helix402 said:

-1.5 degrees rear camber will not cause any wear problems. It will be due to something else.

Okey, cool, but all my rear arms are good! What could cause this to the inner side? Other wheel alignment value?

[zippyonline]

Yeah, my camber is closer to 2 deg on the rear now - just recently swapped to a new rear set of tyres and wear was pretty even across it (0.5mm difference inside to outside).
It's toe in my case mostly excessive toe compliance / collapsed inappropriate ball joint that caused the issues.

[PeterF91]

zippyonline said:

Yeah, my camber is closer to 2 deg on the rear now - just recently swapped to a new rear set of tyres and wear was pretty even across it (0.5mm difference inside to outside).
It's toe in my case mostly excessive toe compliance / collapsed inappropriate ball joint that caused the issues.

Which ball joint? Mine all fine. Thats why I dont understand why the inner side is wearing better. Might be just I have to take a suspension adjustment.

[Mignon]

PeterF91 said:

Hi Guys, I'm from Hungary. I have the same problem with my rear tires inner side is like slick. The camber degree I think is too much. What kind of value do you guys suggest to the rear camber? - 1° ? - 1 ° 10' ? - 1° 30' ? I think - 1° 50' as factory value is too much. Thanks

It ought to be very obvious to you that if the vast majority of these cars have no unusual tyre wear problems with the stock camber settings then it can't be the OE design that is causing your problem. BMW do actually do just a tiny little bit of long term road testing before putting their cars on sale and you'd like to think they'd spot any major design flaws like tyres shredding unusually fast. So regardless of whether you think your suspension is unworn and in good condition logic says it has a problem somewhere like the OP had and which he fixed and reported back to us on.