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Starting Problem

Old Feb 21, 2007 | 11:09 AM
  #1  
doc2th's Avatar
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'96 S320, '84 450 SL
Unhappy Starting Problem

My '96 S320 has a puzzling starting problem. It starts flawlessly most times, but once in a while (every 3 weeks or so) it will not start. I turn the key, all the lights come on, but nothing happens - just silence, no cranking at all.

Different mechanics, including the dealer, has tried to solve the problem, but to no avail. I've replaced the neutral starting lock switch (?? or something like that) and it hasn't helped.

When this happens, I can do one of two things: wait a few minutes, and sometimes it starts. Or, I can rock the gear shift back and forth between "park" and "neutral", and usually this does the trick and it starts.

About three years ago, I had the same problem and nobody had the solution. Then I had the battery replaced, and the problem disappeared until now.

I had my current battery checked twice. Both times different mechanics reported that the battery is still OK and the connections are tight.

Any solutions to this aggravating problem would be much appreciated.
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Old Feb 26, 2007 | 03:50 PM
  #2  
ckad's Avatar
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From: Sugar Land, TX
03 S55
when it doesnt start does ur gear selector show park in the cluster?

i have a similar prob w/ my 03 s55. i have to put my key in and turn it to the on position and wait till i see the gear selector on the display show "PC" for park. at that point i turn the key to start and it fires up everytime. let me know what you find out.
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Old Mar 1, 2007 | 09:34 AM
  #3  
benzeboy's Avatar
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ml320 & c240
Talking

Aaaahhh the days of computerise starting syst.
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Old Mar 1, 2007 | 10:42 PM
  #4  
doc2th's Avatar
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'96 S320, '84 450 SL
Originally Posted by ckad
when it doesnt start does ur gear selector show park in the cluster?

i have a similar prob w/ my 03 s55. i have to put my key in and turn it to the on position and wait till i see the gear selector on the display show "PC" for park. at that point i turn the key to start and it fires up everytime. let me know what you find out.
Thanks for your suggestion, but my car doesn't have a gear selector display in the cluster. And it doesn't matter if I wait or not; most of the time it starts right away anyway.
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Old Mar 6, 2007 | 08:57 PM
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Try disconnecting/connecting the battery, wait a few minutes before
reconnecting.
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