no problem, just a question

[joderest]

My W163 (ML270) blows a bit of black smoke when you use kick down, it clears again almost instantly.
I was thinking (dangerous i know !!!) a while ago i had the vacuum pipe disconnect itself from the Turbo activator, and the black smoke was something to behold. Reconnecting the pipe brought everything back as normal.
However, i wonder if its possible that the activator can, with age, become a bit lazy and does not react to a foot down demand as quickly, giving a bit of turbo lag ? (hence unburnt fuel and black smoke)
They are a relatively cheap item to replace, and seems easy enough.

anyone have a thought ?

 

[bembo449]

any boost related " open to air " will cause black smoke pal and I think by there very nature , unless you cane it everywhere you will get a puff of black smoke when you accelerate hard , never seen an older derv that doesn't

 

[mioba]

Nothing to worry about, if it aint broke dont fix it springs to mind!