A3 BKD TDI 140 Idle shudder/judder?

[VAGster]

Hi all im a new member and this is my first post.

Had an A3 Sport BKD 140 TDI about a month and trying to resolve the dreaded idle judder! 53 plate 87K. Very annoying as I love the car!

Seen many posts on this but none solving the problem.
Dont believe its the DMF, as my problem is when its up to temp(perfect when cold) and clutch up/down makes no difference also no clutch judder. Anyone know if below technical bulletin ECU update is relavent/works from Audi??(Taken from Elsawin for VW Golf V TDI)
Would try to up idle slightly with Vagcom but cant find a guide to do this on mine that works? Anyone done it on this BKD engine?

Already tried
Disconnecting MAF
Disconnecting fuel temp sender
Replacing injector wiring loom under rocker cover.
checked coolant temp sensor (warms up gradually to 80 -90C)
scanned for faults (nothing on engine just instrument cluster prob)
Cambelt just done was same before.
None have made any difference.

Any help/advice appreciated. Thanks!

Technical solution
Transaction No.: 2005869/9
Erratic idle speed in warm condition
Release date: 23-Dec-2005

Problem description

Erratic idle speed with hot engine.

Cause

Adjustment in the engine control unit.

Production solution

Optimised software:

[sprout99]

We have same prob apart from ours actually cuts out usually when engine is cold. Ours is DSG so more difficult to control

did you get to bottom of this?

the only thing thats improved ours is increased idle speed.

whats yours set at?

Thanks
Ian

[a3tdiman]

how did u djust your idle speed ?

We have same prob apart from ours actually cuts out usually when engine is cold. Ours is DSG so more difficult to control

did you get to bottom of this?

the only thing thats improved ours is increased idle speed.

whats yours set at?

Thanks
Ian

[shaun tdi]

i have the same problem on my a4 1.9 tdi only idles rough when warmed up changed the coolant temp sensor..now i might try the coolant temp sender.

[siman05]

any news guys... i too now have the same issue.... my cars starting to have a list of issues!!

[shaun tdi]

well tried the new coolant temp sender and its still the same
so now looking towards the fuel pump side of things now..although the car seems to run slightly better its still very lumpy at tick over.
I will keep you posted if i get any further.