79 450SL starting problem - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 06-03-2010, 09:46 AM Thread Starter
BenzWorld Newbie
Date registered: Jun 2010
Vehicle: 1997 E420 Sport AMG
Location: Walnut Creek, Ca
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(Thread Starter)
79 450SL starting problem

I'm working on a 79 450SL. It has an intermittent starting problem. Sometimes it starts then sometimes when you turn the key nothing. If you bang on the starter then it starts again. So I replaced the starter of course and.....same problem! I'm suspecting the ignition switch but if there's a relay in the starting system (not sure if there is?) then I would look at that too. Or maybe a bad positive battery cable?
Any and all replies appreciated!
maxoctane is offline  
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post #2 of 2 (permalink) Old 06-07-2010, 08:29 AM
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Date registered: Feb 2010
Vehicle: 1975 280C
Location: Dallas, TX
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The same thing happened to my 75 280C. I tightened the battery connections and it worked. My battery isn't really the right size, so I think it wiggles and loosens the connection.
KaylaMick is offline  
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