Audi A4 B7 (2005 - 2008) - 06 -VAG engine 2.0Tdi v 19Tdi, reliability?

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Thu 16 Apr 2009 15:32
06 -VAG engine 2.0Tdi v 19Tdi, reliability? - massey
I recently acquired a Audi 2.0Tdi . My mechanic informs me that I should have went for the 1.9Tdi model instead as the engine was far more reliable. Anybody have any experiences to back up this claim?

Edited by Pugugly on 16/04/2009 at 19:54

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Thu 16 Apr 2009 18:27
06 -VAG engine 2.0Tdi v 19Tdi, reliability?? - Roly93
I've had both in the A4, neither engine gave any trouble, but the 1.9 130BHP engine is significantly more economical than the 2.0 TDI 140. Legend has it that the 2.0TDI is not as good, but I see no other evidence of this, in fact the 2.0 TDI has an improved CAM belt setup that is less prone to failure than the 1.9 engine I think.

Edited by Roly93 on 16/04/2009 at 18:29

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Thu 16 Apr 2009 19:25
06 -VAG engine 2.0Tdi v 19Tdi, reliability?? - 659FBE
The later 1.9 (AWX) engines got the revised cambelt tensioner.

I'm reluctant to comment because I've not actually owned a VAG 2.0 diesel (mine is a 1.9) but driven a few. The 2 litre engines with balancer shafts are definitely smoother than the 1.9s but some of these are rumoured to have balance shaft (and oil pump) drive problems - see American Passat website for engine type BHW. Cam follower/shaft problems and turbocharger failures also seem to feature more frequently on the 2 litre engine - the complexities of the DOHC layout may be responsible.

The fitment of a DPF definitely scuppers the efficiency of this engine - as most 2.0s have DPFs this may account for the accusations of higher fuel consumption. I'm most impressed with the efficiency and general usefulness of the (Euro Cat III) 1.9 engine. I'll look after it.

659.
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Thu 16 Apr 2009 19:50
06 -VAG engine 2.0Tdi v 19Tdi, reliability?? - 659FBE
Google "Passat BHW engine failure" and it's all there.

659.
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Fri 17 Apr 2009 19:54
06 -VAG engine 2.0Tdi v 19Tdi, reliability?? - Roly93
The later 1.9 (AWX) engines got the revised cambelt tensioner.

I think to bring it into line with the 2.0 engine.
The fitment of a DPF definitely scuppers the efficiency of this engine - as most
2.0s have DPFs this may account for the accusations of higher fuel consumption.


Only the 2.0 170 BHP have DPF fitted in the UK usually..
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Sat 18 Apr 2009 15:25
06 -VAG engine 2.0Tdi v 19Tdi, reliability?? - quizman
>>Only the 2.0 170 BHP have DPF fitted in the UK usually


Are you sure?
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Sat 18 Apr 2009 19:24
06 -VAG engine 2.0Tdi v 19Tdi, reliability?? - daveyjp
An 06 140 won't have a DPF.

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Mon 20 Apr 2009 13:00
06 -VAG engine 2.0Tdi v 19Tdi, reliability?? - Roly93
An 06 140 won't have a DPF.

Nor does my 07 A4 2.0 TDI 140
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