you guys should use silicone on your door seals it works. beginning of winter it got cold and all my doors froze to the weather strip. so I siliconed the weather strips, and doors haven`t froze shut since ,and I even washed the x5 at -15c ,and the doors never froze shut again.

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2003 bmw x5 3.0i ,219000km build date 2003-08-18