Need some serious help- car turns off while driving - Page 2 - Mercedes-Benz Forum

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post #11 of 16 (permalink) Old 06-27-2009, 08:34 PM
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check this

speaking from experience as one who had this problem on another car not a MB that drove me and my dealership crazy for months that I finally took to a local shop not the dealership and the old wise man there pegged it in 5 mins after my telling him what the problem was. Simple fix then was he found a hole in a fuel line that is causing air to be suctioned into the line causing a type of vapor lock or loss of gas pressure starving the engine so it quits suddenly. When the car is stopped, and you retart it, the higher fuel pressure at start allows it to vent the air in the line, the hole doesnt have to be very big that you might or not notice a slight fuel odor under the car or hood.
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post #12 of 16 (permalink) Old 06-27-2009, 09:28 PM
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something else the guy who fixed it told me to that could cause the air pocket in the fuel line causing the quick shut off then easy start up is a incorrectly installed or loose fuel pick-up line in the tank that either on a bump or like you said in a turn causes the fuel pick-up line to raise above the fuel level sucking air, much harder to fix of course than a leaky fuel line oh and another thing to check as well is loose connections at the fuel fliters, tank etc basically check the line from tank to engine looking for a leak.
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post #13 of 16 (permalink) Old 11-28-2009, 05:05 AM
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SL 55 AMG shutting down whilst driving


Did you ever get a working solution for your problem with your SL 55 AMG shutting down?

I had the same, Mercedes here in Mallorca say they have solved the problem, I will know next week.

If it is in fact solved, I will post here, if anyone would be interested.
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post #14 of 16 (permalink) Old 11-28-2009, 08:26 AM
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Yes please, I am interested so kindly post what you find out.

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post #15 of 16 (permalink) Old 12-03-2009, 01:09 PM
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As promised, here is my report, just got my SL 55 AMG back from the mechanics in Mercedes:

After a thorough comPutertest, they replaced the crank position sensor, recharged all batteries and updated the software on the computer, and..


In spanish, they replaced:


Good luck to all with the same problem!
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post #16 of 16 (permalink) Old 04-24-2010, 03:03 PM
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Vehicle: CLS 350 2012 (C218) - RIP CLS 55, 500
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My CLS 500 turned off today at home .

I started the car 'Put it in drive' and then the car just turned off itself :S. I started it up again and it was fine, it's never happened before. Could this problem be related to the crankshaft?

I have a 2005, UK CLS.

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