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#1
12-27-2007, 04:57 PM
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My door locks will lock but wont unlock??
I have a 1979 300D. Its a minor problem, but there must be an easy fix. My doors/trunk wont lock automatically, but all will unlock automatically. Is this a simple problem? Thanks!!! Happy Hollidays!
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#2
12-27-2007, 10:01 PM
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If you shut off the car with the doors locked, then try to unlock them will they unlock? You likely have a vacuum leak in the system which allows the vacuum to leak while the doors are locked so there is no vacuum left to un-lock them after the car has been sitting. Buy a Mity-vac and start testing!
__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver 1982 300SD - 232K miles - Wife's Daily Driver 1986 560SL - Wife's red speed machine
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#3
12-27-2007, 10:35 PM
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well it could be the driver's door vacuum switch, or any of the diaphrams in any of the unlock circuits. or a vacuum connector or ... etc... I agree. mityvac.
__________________
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!
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