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2012 S350 bluetec bucking on cold start

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Old 11-16-2014, 09:36 PM
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1991 300CE, 2013 ML350 Bluetec, 2014 ML350 Bluetec, 2012 Ram 1500
2012 S350 bluetec bucking on cold start

Has anyone had an issue with their 2012 S350 BlueTEC bucking on cold start for about a mile or so when the temperature drops below 30 degrees F?

If so, were you able to get it fixed and what fixed it?

It feels like the engine is running lean or needs the glow plugs on to help with combustion.

Thanks for any advice on this issue.

Last edited by longisland516; 11-16-2014 at 09:37 PM. Reason: caps issue
Old 11-17-2014, 04:27 AM
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Are you using qualified winter grade diesel fuel?
Old 11-17-2014, 08:41 PM
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1991 300CE, 2013 ML350 Bluetec, 2014 ML350 Bluetec, 2012 Ram 1500
I am not sure if the fuel is winter grade. This is about the time New York switches over to winter fuel.

I have had the same type of issue in a 2012 ML350 BlueTEC and it was never resolved. I should have been more clear on the temperature range as the issue can occur in the range of 25 degrees F to around 40F. If it gets much colder the issue is not as bad.

I took it to the dealer today so hopefully they figure it out.

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