judder/misfire 2.0 tdi

[corradovr32]

greetings
firstly apologies if this has allready been mentioned or talked about

recently purchased my a6 2.0 tdi 2008 MY

have had it fully serviced with all filters and oil.
the car is still juddering in idle and when the revs are held.
when driving there is no possible problems (this is my first diesel) and it pulls well i think.
no smoke,no warning lights and no fault codes shown on vagcom
mileage just under 100k
any help will be appreciated
thanks

 

[audijonny]

Plug in vcds. Or take it to garage for full scan to start with.

 

[corradovr32]

was fully scanned with vcds
no faults found
any measuring blocks in vcds to check?

 

[owais2k1]

My friend raised the idle revs. Fixed it for my car. 2.0 tdi 2006.

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[corradovr32]

My friend raised the idle revs. Fixed it for my car. 2.0 tdi 2006.

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what rpm did he raise the revs to?

 

[owais2k1]

what rpm did he raise the revs to?

Let me check with him. I'll get back to you.

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[corradovr32]

update on my recent works.
have had the car remapped via rolling road with EGR blank. also have changed the cam position sensor as it was showing a fault.
the car is still juddering in idle.
there are no faults on vagcom/vcds.
have used shell vpower diesel for the last 2000 miles and its had a major service and the problem is still here

is there anything else i should do or check?

 

[owais2k1]

Hi my issue was tandem pump. Leaked oil into fuel. Causing the problem.

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