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#1
10-03-2006, 12:20 PM
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1988 450SL trunk lid will not open
The trunck will not open when I turn the key and press the button to unlatch the trunck lid.
Is this a mechanical latch that is stuck, or is it an electrical problem? What would be the recommended method for me to get the truck open? 
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#2
10-03-2006, 03:55 PM
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trunk lid
is this a 78 450sl or an 88 560sl?trunk latch is mechanical with vacuum conn for lock.if you are trying to unlock make sure that you first turn key counter clockwise and then push button in.
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David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg
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#3
10-03-2006, 07:33 PM
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Answer:
If I recall correctly, there are three lock functions in the trunk latch.
#1. Mechanical key lock. #2. Vacuum lock actuator. #3. Electric dead bolt totally controlled by the alarm module. If the battery goes dead and/or alarm module fails or is removed, the dead bolt locks closed, and the key or vacuum actuator will not open the trunk. Here is further data. Trunk lock problem-W126 300SD http://www.peachparts.com/shopforum/showthread.php?p=879700 trunk won't open http://www.peachparts.com/shopforum/showthread.php?p=512820 82 300SD Trunk Won't Open http://www.peachparts.com/shopforum/showthread.php?t=15438 Have a great day.
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ASE Master Mechanic https://whunter.carrd.co/ Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 2003 Volvo V70 https://www.boldegoist.com/
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Linear Mode
