1985 Mercedes Benz 300sd Starter

1985 MERCEDES BENZ 300SD
140,000 MILES • V8 • AWD • AUTOMATIC
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TORRES909
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  • 1 POST
Well my car runs perfect but today i turn off my car and it wouldn't shut off. the car kept on running with no key in the ignition. so i had to turn it off manually.. what should i do to fix this problem?
Sep 11, 2008 at 9:34 PM
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DR LOOT
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  • 2,311 POSTS
it sounds like the vacuum pump has gone out, the engine is shut off by vacuum, and when the vacuum pump fails, you have the emergency shutoff, check your vacuum lines coming off of the Pump, make sure everything is hooked up.
Mar 26, 2009 at 11:21 AM
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DIESELLOVER
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  • 13 POSTS
Agree that your problem is most likely a vacuum problem. However, you said nothing about having braking problems, so I doubt that the vacuum pump is the difficulty. I have one like yours, same difficulty. Looking at the small vacuum hoses in the area, I found one that the rubber connector had grown brittle and would not keep the two hoses connected. I cut a small section of same size rubber hose, replaced the brittle section and for less than 50c problem solved!! Hope this helps!
Best wishes,
Tom
Dec 21, 2009 at 7:18 PM
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