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Old 08-16-2007, 10:25 AM
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Join Date: Aug 2007
Posts: 28
Door locking questions

I have a 1980 450SL & the door locks don't work. I know that there are vacuum problems that prevent the driver door from opening from the outside as well as the central locking system to not work. My question is instead of repairing the vacuum lines can I just install a remote locking system like this
or will I need to repair the vacuum lines for something like this to work as well?

Thanks for any help.
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Old 08-16-2007, 10:51 AM
Chad300tdt's Avatar
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Join Date: May 2007
Location: North Wales, PA
Posts: 4,001
If you plug the vacuum line leading to the central lock system and take out the vacuum lock actuators, you can put electric actuators in place. It is a pain to do that due to running the wires through the door jam accordians (not too bad for a 2-door, but you still have the gas lid and trunk to deal with). I would repair the vacuum system and install a keyless entry to operate the driver door and let the current central lock system do the rest. IMO it would be easier than running all the new wires unless you really have leaks in the lines, not just components.
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