Blueish puff of smoke???

[Tom696]

Hi people,

I get a fair puff of blueish smoke out the exhaust when travelling at low speed i.e. in a traffic cue or crawling, not very often but noticable.

Is this any thing to worry about or is it just normal

Its a 2.0TDI

Cheers
Tom

 

[trqster]

Hi Tom, what year and which power output (140 or 170bhp) is the car you're talking about?

 

[Tom696]

Hello mate,

Its 140PD but had mods done to it, its at 206BHP at the moment, I think its just where the engine is idleing it has a build of fumes and releases it a given point but just checking that its not a seal on the way out, it only seems happen in heavy traffic/cues.

 

[ini]

Drain oil out of lower IC hose?

 

[trqster]

Well not to scare you but most 2.0PD 140bhp TDI's have a serious issue, a defect on the head, resulting in puffs on whitish smoke at idle and then start having hot start-up issues too.
This is a well known problem and the manufacturer takes reponsability to fix the problem whitin a 7 year-span period by fitting a brand new engine.

But hopefully it'll be something not that serious.

 

[muddyboots]

the manufacturer takes reponsability to fix the problem whitin a 7 year-span period by fitting a brand new engine.

I bet they won't touch one they know has been modified though.

What is this problem - do you know any more detail, some kind of cracking in the head ?

 

[trqster]

Warranty is obviously voided if any modifications were made to the car... But one can always put it back to standard before going to the dealer.

Can't really find an article in English language expalining the issue, but the problem description is like this guy experienced: http://www.audi-forums.com/c6-forum/44304-cracked-cylinder-head.html

 

[dozza.13]

Mine occasionally gives off a puff of blueish smoke, when pulling away when the engine is cold, or smokes a fair bit in cues, especially when crawling up an incline with the clutch up and no throttle! Have been told that it has puffed out a bit of white smoke doing this before as well! Can also feel a slight judder from engine when idling, almost as if it was missfiring slightly