search for a different mechanic. glowing the plugs twice is good advice, on COLD COLD mornings, by this I mean turn on the key count to 30, or listen for the glow plug relay to click off, Ignore the light, then turn the key off, and back on and count to 30 again. then immediatly start it. I also recommend giving it part throttle until the idle smooths out.
doors are designed to be lock/unlockable for days with the car off, and should cycle 5 or 6 times with the car off. othewise look for a leak.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!