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Blue smoke on startup

Discuss your latest mods or ideas, and anything to do with the BMW X5 (E53).
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sonny007
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Blue smoke on startup

Post by sonny007 » Wed Dec 11, 2013 12:57 pm

Hi guys,

I've noticed when I start the car in the morning, i'm seeing light blue puff of smoke being released. Very stinky too  :puke: :puke:

Car starts on first click everytime. Is this just the cold weather?

Sonny
E53 2005 3.0d Sterling Grey, 20 Inch V Spoke, SatNav, Exclusive Black Leather Comfort Heated f/r Seats, Heated steering wheel, Power folding side mirrors, Panoramic Sunroof, Auxiliary heater, Xenons, Climate Windscreen Parrot MKi9200

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X5Sport
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Re: Blue smoke on startup

Post by X5Sport » Wed Dec 11, 2013 1:11 pm

If it only does it on a cold engine for a couple of seconds then it's completely normal.  Being 'compression ignition' diesels take a couple of turns to fire so you get unburned/part burned fuel out the back.

Richard
:ant: Never anthropomorphise computers. They hate that.

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