Mercedes 1995 SL320 6 Cyn Not Starting - Mercedes-Benz Forum

 
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post #1 of 5 (permalink) Old 04-15-2012, 10:18 AM Thread Starter
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Date registered: Aug 2011
Vehicle: 1995 SL320 Convertible, 2007 BMW X3, 1961 Ford Fairlane
Location: Massachusetts
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Mercedes 1995 SL320 6 Cyn Not Starting

Well after the car being in the garage all winter we decided to change the spark plugs. We used original ones to the car. We took it out and it was driving fine. All of a sudden it started to run bad and choked out. It would not stay started. Under the cat was red hot. I had it towed and the cats replaced. They could not get it to move and said it was running on 2 cyn. They were not Mercedes experts so I had it towed back. It does not turn over at all and makes some kind of wheezy noise that seem to be coming from the throttle actuator??

We have tried to spray some starting fluid still not starting. Is there a fuel shut off somewhere. The battery was also dead when I got it back. Recharged it put the key in the first position and waited 5 minutes still the same. Any advice??

1995 Mercedes Not Starting Wheezy Noise Coming ETA - YouTube

http://youtu.be/J1lSqHN6SmA

I am going to try to start it in neutral.

Last edited by housefinds; 04-15-2012 at 11:20 AM.
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post #2 of 5 (permalink) Old 04-15-2012, 01:44 PM Thread Starter
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Vehicle: 1995 SL320 Convertible, 2007 BMW X3, 1961 Ford Fairlane
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Update

I tried to start it in neutral but it didn't start. Can anyone recommend a code reader for a 1995 SL320. I will also do a search on the forum. I am concerned mostly with the sound that is happening when the key is in position #1, not trying to turn it over.

http://youtu.be/1yKXzWAMnwA

I don't know if it is normal and seems to be coming from the throttle actuator. I believe it is getting fuel but I will check to see if it is.

I will keep this thread going and post what ever results I find so it can help anyone else who runs into this same problem.

I am well aware of the harness problems on these cars and will put in a new wiring harness if necessary. Hope this is not what is causing it not to start up.

Thanks in advance for anyone who is willing to chime in with their experiences.

Last edited by housefinds; 04-15-2012 at 01:59 PM.
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post #3 of 5 (permalink) Old 04-15-2012, 06:45 PM Thread Starter
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Mercedes Not Starting

Well I did some more reading and decided to check and replace the CPS.
Watch a youtube video. Looked easy. Couldn't find it for the life of me. I will look again tomorrow. Nothing on the forum for a 1995 Sl320 CPS.
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post #4 of 5 (permalink) Old 04-19-2012, 07:06 PM Thread Starter
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Mercedes Sl320 Not Starting

I have bought the Crankshaft Position Sensor and will try to replace it on Sat. I will let everyone know if this help. Unfortunately I have also notice some deteriorating wires. I will still replace the CK sensor, if this fails I will definately have to look at replacing the Engine harness and also take a good look at the Throttle Actuator. I will take picture and video and share on here.

Thanks,
Sandra
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post #5 of 5 (permalink) Old 04-21-2012, 08:10 AM Thread Starter
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Date registered: Aug 2011
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Mercedes Sl320 Not Starting

Continued Here:

http://www.benzworld.org/forums/r129...ml#post5216776
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