Mine always does that and in the end, I ended up breaking th driver door handle while opening it in the cold weather. I had to replace the door handle carrier and everything has been great since. Now the passenger door freezes way more often than the driver door.

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2002 X5 3.0i SOLD!!!!!
Mods:
AC Scnitzer Body Kit
Custom painted body trim
AC Schnitzer Exhaust
OEM 20" style 87 wheels
3- 12" kicker comp. subwoofers (2200 watt amp)
3- TV screens (2 headrest, 1 in-dash), with PS2
Custom STRUT grille
Chrome trim on headlights, foglights, handles, trunk trim, taillights
OEM upgraded clear headlights, taillights, sidemarkers
K&N filter
Other Cars:
2002 Mercedes Benz S500 Designo (Espresso Edition)
2003 BMW 745Li Black Sapphire/Tan