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Help with engine stopping when starting cold

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Old Feb 12, 2017 | 08:03 AM
  #1  
rovermark's Avatar
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2011 E350 4Matic Estate in Mystic Red
Help with engine stopping when starting cold

I would like to take the car to the dealer, but the problem is almost certainly not going to reproduce at the dealer, hence please help with the following issue:

I do not use the car very often now - one every 1-2 weeks or so. The car is in a non-heated home garage, and when I turn the engine on, the engine will cut out after a few seconds (splutter out). I have to press on the accelerator for about 10 seconds, then it will work fine; i.e. engine will not stop.

Prior to this, I used to use the car daily, and I never had any issues. It is not a battery issue, as it starts right away (and the battery is new).

What is the most likely cause of this?

Thanks.
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Old Feb 12, 2017 | 01:24 PM
  #2  
cetialpha5's Avatar
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Hard to say, but maybe it's fuel pressure. Maybe let the car prime the fuel pump for a few seconds before actually starting the car.
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Old Feb 13, 2017 | 10:24 AM
  #3  
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+1 ^

if its cold outside it could possibly do that too..after not being driven for a week or two i guess
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Old Feb 13, 2017 | 12:09 PM
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Also to add a minor tip. Every time you go to the car to try and start it make sure to record a video of what is happening on your phone. Therefore you can take a copy or send it to the SA at the dealership. This often helps when you can't replicate the actual issue once it gets to the dealer.
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Old Feb 13, 2017 | 12:11 PM
  #5  
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Sounds like your fuel line check valve might be leaking.
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Old Feb 13, 2017 | 01:00 PM
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bad gas ?
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Old Feb 13, 2017 | 01:47 PM
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I'm thinking it's a bad tank of gas also. Definitely sounds fuel related.
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Old Feb 14, 2017 | 06:30 PM
  #8  
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Originally Posted by KEY08
I'm thinking it's a bad tank of gas also. Definitely sounds fuel related.
Thanks for the responses.

No leak that I can detect. Good idea about taking a video.

Getting rid of bad gas.... the tank is half full right now. How can I replace the fuel? Just mix it with fresh fuel? This happens every time I start the car now.
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Old Feb 14, 2017 | 08:27 PM
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maybe throttle body needs good cleaning???!! my mom had that on her Nissan Murano. i cleaned it with some carb cleaner and it was perfect after that. Hope that will help
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