... well, it's not a terminal emergency, as I'm only locked out of the passenger side and the trunk. Beginning last night, my '87 300D decided not to let me unlock or open the passenger side door or trunk. The trunk is especially a problem, as I have a lot of supplies back there ... and (with hindset, this was maybe not a brilliant storage stragety) my ONLY set of metric tools resides in the trunk. The trunk has been sticking for a while now (a year), but I assumed it just needed a little grease and never got around to it (it only stuck a bit). Now it won't open AT ALL or even think about opening. The passenger side door will not unlock or open either. I can insert the key, but it will not turn and the lock button remains in a "half-raised" position whether the car is locked or unlocked. When I lock/unlock the car from the (working) driver side door, everything locks/unlocks with it except the passenger door (the lock button budges but does not come up completely) and assumedy the trunk. I thought perhaps it was just frozen last night, which was possible since it was 3 degrees f. Well, today it is pleasant, much warmer than most recent days. And the locks won't behave.

I'm sure this topic has been covered in some way, so I hope I'm not backing over a previous discussion. Please tell me this is not a problem with the vacuum system. As far as I know the whole system was redone on the car three years ago. Any ideas? Could it still just be frozen? It's about 25 here now, and sunny. The locks have been working when it was 0 deg!

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1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)