Thread: 1981 300sd
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Old 04-25-2003, 11:53 PM
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billrok billrok is offline
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Join Date: Dec 2001
Location: Chicago area
Posts: 242
The 83 SD has an electric auxillary vacuum pump located in the spare tire well wedged in next to the spare. It's sole purpose in life is to come to life when you actuate either the front doors or the trunk which will lock or unlock all the doors. Disconnect the power lead to the pump and good luck tracking down what sounds like at least 2 electrical problems. Hopefully niether are related.
Orland Park, IL
1985 300SD 215,000 miles
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