Large Blue Smoke puff on startup with '05 3.0d

[rb0135]

Hi all.

Yes, there is a similar thread (http://www.xoutpost.com/bmw-sav-foru...0d-diesel.html) on this topic with an '04 model, but I didnt want to hijack that thread for my issues. Hope I have done the right thing in opening this thread.

I am getting a little worried now.

My puff of Blue smoke (which seems heavy as it lingers in the air) seems to be a lot more than it should, and only after the car has been sitting for more than 6 hours. Anything under that approximate time, hot or cold, doesnt produce the smoke at all. For example, I come home at night about 10pm, leave it parked in a garage until 8am, start it up and get the smoke. It smells like diesel, not antifreeze or straight burnt oil.

Does this sound like a leaky injector, leaking Turbo, bad MAF sensor or some other issue (there are probably 100's of things to look at)???

I have seen other models around mine ('05) that dont seem to do this anywhere near as bad (hardly noticable). Same with other BMW diesel models and other manufacturer models. They dont seem to "smoke" like mine on startup. Yes, I know. It is a diesel and will "smoke" a bit... I have had a few people (people who have driven diesels) and they seem to think it is too much "smoke".

I have hooked up GT1 and DIS and there were NO error codes at all (thinking if it was an injector, then it might produce a code).

It has had regular servicing.

My neighbour has a 330D (which I think has the same engine) and they dont get puffs when starting cold.

I dont get the glow plug pre-heating text as the temp is around 10-12C. In the other thread, it was suggested that Smoke on startup can be caused by either (A) faulty glow plug/s or (B) maybe a leaky injector/s.

It is a Sept 05 model with nearly 90000 km's on the clock.

Any ideas/simple tests that I could try to narrow this down. Anyone had this issue and resolved it?

Thanks All,
Rob