Randomly wont start/ soft works very slow - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 01-15-2008, 09:00 AM Thread Starter
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Date registered: Jan 2008
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Randomly wont start/ soft works very slow

I have a 92' SL500. It randomly wont start. Once I jump start it, its ok for a few days and randomly it goes dead again. I replaced the battery with a new one. I am afraid to take it out, it went dead on me one day after lunch. I tried jump starting, it did not work, then after I pushed it off to a different parking spot. I came back a hour later and it just started without a problem.

Also realized after not using the soft top for a few months that it opens and closes very slow. Some times, it needs manual help to do the same.
Any ideas, I showed it to couple mechanics and they have all kinds of guesses but not a clue what it is exactly.
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post #2 of 2 (permalink) Old 01-15-2008, 08:47 PM
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Date registered: Apr 2005
Vehicle: 2002 CLK430
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Sounds like either a bad alternator or voltage regulator. If you can R&R it yourself, a rebuilder can fix it in an hour (if it's a slow day), and this typically costs $75-$80.
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