Help with poor running & smoking A4 2.0 tdi

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hi I need some help with issues I'm having with my 2005 A4 2.0 TDI 140 BLB

the car has to turn over a while to turn on, once on its very lumpy and missfires a bit and also shoots loads of white/grey smoke out of the exhaust. if i drive the car it eventually clears up but if left idleing it comes back,

it drives fine under load but when you try cruising at say 60 it lurches as if the power is coming on and off.

when the car is warm and you turn it off then go back to it to turn it on, it winds and winds then fires up for about 10-15 seconds perfectly no issues what so ever but after that it runs crappy again?

I've changed the MAF, EGR, glow plug module (relay) injector loom and had the injectors reconditioned which helped a tad but not really alot.

my diesel is clean in the filter, and the car doesnt seem to be using any coolant, I have no faults codes on vag com although the injection quantity is high and fluctuates between 14 and 16.5 specified is between 3.0 and 9.0 on idle

i would kindly appreciate any views on this one?
 
Sorry to dig up a old thread but did this problem get solved or can anyone shed some light? I've got exactly the same issues and I'm losing the plot as to whats up with it
 
I had almost exactly the same symptoms on my BLB and we concluded it was either the turbo vanes sticking or the EGR.
In the end a replaced EGR solved my problem , good luck .
 
Had this with mine had the egr valve blanked and car remapped and now runs like a dream and pulls like a train.
 
exactly the same issue here. took it to the garage and they think its the injectors. had the EGR cleaned out and its made a little difference but not a lot.

attached are two images - one of my car with the white unburnt diesel out the back and the other is a injector reading showing injector one over fuelling :(
 

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