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The all new 2015 BMW X6 is the second generation luxury cross over. BMW referes to the X6 as a Sports Activity Coupe (SAC) as it combines the attributes of an SUV (high ground clearance, xDrive and all-weather ability) with the stance, styling and roof line shape of a coupe. The F16 BMW X6 is build side by side with the F15 X5 at BMW's BMW's Spartanburg, SC plant. Read all about the second generation BMW X6 here!

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Old 03-30-2018, 11:49 AM
amatose amatose is offline
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Mein Auto: X6 40d Msport
Rear tires center wear

Hi, the rear tires of my X6 40d (Pirelli scorpion summer RFT 285/45R19) are excessively worn in the center. The edges of the tires are at 5 - 6 mm depth while the centers are about 3mm. This is after about 12000 miles (20000 km).

I thought this happened because of overinflation but I always keep the pressures as specified in the user manual. I have a winter set with all 4 tires sized 255/50R19 (pirelli scoprion winter RFT) and the treadwear is the same on all 4 tires (about 5mm after 10000 miles). The tires are both runflat but summers are much harder (ride is really bumpy). I was thinking about upgrading my summer setup to 20 inch 275/315 with non - runflat michelin latitude sport 3 for looks and comfort.

Is it possible to replace only the rear tires or this would impact the Xdrive ? I read on this forum that rear tires on the X6 wear on the inside because of negative camber but could not find a topic regarding my problem.
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Old 03-31-2018, 01:01 PM
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JayR04 JayR04 is online now
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Yes over inflated tires tend to wear on the inside. Keep in mind the recommended tire pressure are for the OEM tires so you must decide for yourself what pressure the non OEM tires should use. Or contact the tire manufacturer.

I believe as long as the difference in tire height between front and back is within 3% it should not affect xDrive.

Almost all high performance vehicles have negative camber in the rear to improve high speed handling, BMWs are like this as well.
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Old 04-01-2018, 02:53 AM
amatose amatose is offline
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Great thx for info. The pirelli summer RFTs are so bumpy I can't wait to throw them away. The 275/315 setup with the michelins is what I'm aiming for, only thing I see is that the fronts have a higher speed rating than the rears in non-RFT setup. I guess it shouldn't be a problem. After the upgrade I will do a wheels alignment service just in case.
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