Maybe they can't handle below 45F then. That could be why they're noisy? I'm on the other side here in California where it doesn't go that low. I found them to be really quiet. I have almost 15k miles on the odometer and I think they could last another 15k ~ 20k miles.
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2001 X5 4.4i - sold but never forgotten!
2014 X5 xDrive50i
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