TIRE CUPPING on 2008 Volvo C30

My volvo has 48,000.I am on my second set of pirelli tires.There is cupping on the inside fronts.I thought I had rotated enough.Is a bent part possible or do I just need an alignment with a new set of tires? I doubt it was aligned after the first set of performance summers wore out

by in Chapel Hill, NC on March 01, 2010
4 answers 1 comment
ANSWER by on March 01, 2010
You will need to rotate the tires every 7,500 miles at a maximum, 5,000 miles is even better if your getting abnormal wear. The alignment must be checked and corrected if it's out of spec.
ANSWER by on March 23, 2010
what brand/model tires do you use? i am lucky to get 8000 miles out of mine. I ahve 25000 miles on my car (same exact model year) and am on the end of my 3rd set of tires. do you have 17 or 18"?
ANSWER by on April 26, 2010
I have a 2006 Volvo XC90. The original set of tires were dangerous at 20,000 miles. Had to be replaced. We chose Pirelli again, silly mistake; this set has 17,000 and has to be replaced. Two sets of tires in about half the time that a good set of tires would last. Not at all impressed with Pirelli or with Volvo for not standing behind the tires.
ANSWER by on March 06, 2014
It has nothing to do with alignment most likely. The camber on the rear Control Arms is set at 2 degrees. This is for better handling however it has the effect of wearing out the inner front tires. You MUST religiously rotate your tires every 2-3k if you intend to drive the car as it is. Volvo has relized they set the rear camber too aggresive. (In my opinion) the original intended market for the car was likely a sportier type of buyer. Volvo has since created new Control Arms with less camber for normal folk who don't intend to drive in a "sporty" manner. It may cost a little up front but the money you will save in tire wear will win out. Even having 1.5 degrees of Camber in the back vs 2 will provide better tire wear.
COMMENT by on August 27, 2015
Hello, found your statement interesting. My tires have not been as dire as above, but still concerned. How did you learn of this setting issue and the new arms? Can you give me a guestimate on how much is it to replace the Control Arms? Thank-you for your post! Also, is this just the 2008 model or all the C30's of that vintage? (I have a 2009) Was it the same for the "R" models and the regular?