Smoking on Idle/Cold Start - 170

[norman1979]

Currently having issues with my A3 2.0 TDI 170 which I believe are quite common. However, I have noticed that nobody has actually got to the bottom of it or posted a fix. My engine code is BMN and it is fitted with a DPF

The symptoms are heavy smoking on cold start and on idle. It's white smoke which smells almost sulphuric. Quite a distinct smell and its pretty strong.
When the car is warmed up the smoking stops.

After a quick google, most people seem to suggest cam timing, injector seals, tandem pump or DPF. However, nobody has actually posted a successful resolution

I know there are some knowledgeable guys on here so I'm hoping for some advice really.

[SteBrown91]

Has the car had the injector recall?

[norman1979]

Yes. It was done before I purchased it.

[norman1979]

Spent a few hours yesterday on the net trying to search for a fix for this seemingly common problem without success

[b19rak]

I had this problem and sold the car because of it. After alot of research i found someone do had cured it. Apparently the timing is out by the tiniest fraction. You need to connect to vagcom or whatever it's called and adjust it accordingly. Mine ran like a dog until it was warm. Felt like I was getting poisoned.