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Puff of blue smoke

Jamieh2910

By Jamieh2910,
in BMW 3 Series Forum

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Jamieh2910 Newbie

Jamieh2910

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Hi all just wondering if anyone can help please I have a bmw 318d m sport and today when accelerating there was a puff of blue smoke there are no power problems at all it's a 2010 and done 57000 I did blow down the hose from the windscreen washer towards the water tank to unblock the filter would this have anything to do with it 

Greydog Grand Master

Greydog

Posted
Posted

Morning Jamie

Welcome to the Forum, White smoke normally un-burnt fuel, Black smoke over-fueling, Blue smoke oil!! The cause could be turbo seals wearing or valve stem oil seals. Your engine is fairly low mileage and I assume serviced annually so worn valve guides or piston rings should be lower on the culprit list, I would look towards the turbo with the intercooler. Any oil in the intercooler pipes or intercooler can get sucked into the turbo result blue smoke. The turbo lives a hard life so if a turbo oil seal is wearing it could let oil by and result in blue smoke I would get it checked by someone who knows their way around diesels.

I hope this helps

Dave

 

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