Anyone else duffer really bad from frozen rear door handles? Mine are so bad the minute it gets to Zero C I don't even bother trying to open the rear doors. Its that bad that on the few occasion I've have opened the door the mech in the handle is so frozen it wont re-latch. What's the best solution, Silicone spray in the handle mech to displace the water? Maybe grease up the mech to stop the water getting in in the first place?