[Petr4271]

Does anyone has any idea why that black smoke is comming out ? Only few first seconds then goes to normal white

[wcr3d]

Oil blowing by the rings until everything heats up enough to expand and seal.

[Petr4271]

Got the same thing on my volvo, was pretty sure nothing serious.

[Surly73]

Originally Posted by Petr4271

Does anyone has any idea why that black smoke is comming out ? Only few first seconds then goes to normal white

The conventional wisdom I know:

• black smoke - soot, running rich
• blue smoke - oil
• a little white smoke - steam from condensation
• heavy white smoke - coolant entering combustion chamber

At startup these engines run a cold start mode to light off the catalytic convertors. It runs very rich to start at all in cold conditions, and keeps running rich with combustion in the cats.

I'm not shocked to see evidence of running rich. The snow makes for a clear contrast that we may not normally observe. Personally, I would not conclude there was anything amiss unless there are other indications of problems.

[neverdone]

What part of canada

[Petr4271]

Originally Posted by neverdone

What part of canada

Calgary

[neverdone]

Originally Posted by Petr4271

Calgary

Me too. It's been absolute shit. I'm thankful for a heated garage.

[Petr4271]

Originally Posted by neverdone

Me too. It's been absolute shit. I'm thankful for a heated garage.

Weather unreal i have non heated but Bimmer fought it well after 2 weeks sitting only on battery tender.