Diesel problems

Hi, my C220 N'96 is experienceing problems in cold weather when I deaccelarate, it kind of mis-fires for a few seconds and blue smoke purs out of the back. I think that could be the air control valves, but im not sure, what could cause this, Do you know? Thanx in advance

Ben

 

Hello from Finland!

There could be some air in fuel line, have you check them?

(My english is not so good, sorry)

-PP D-