Quote:
Originally Posted by CedarZ4
Let's look at a really basic scenario. Say your last tires lasted 30,000 miles (I know, who am I kidding if you're on OEM RFT Potenzas). Everything was fine for the first 20,000 miles. In the next 10,000, enough rough roads ruined your alignment, but again not enough to show uneven wear. You put on new tires. For the first 10,000 miles on your new tires, your alignment deviated further from OEM spec. Because your alignment was already slightly off, this resulted in a misalignment enough to ruin the remaining 20,000 miles, which then will cause shimmy and uneven tire wear. For $100-$150 (even at a BMW dealer, if you have a coupon), I think it's a good thing to do every few years, which is just how much new tires will last, regardless of uneven wear.
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Good point. In our cars you'll replace the rears then all four. I agree that at that time it will have been a few years and an alignment would be a good idea.
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2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus.
2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.