I was wondering why it seems that the Audi A4 with the 2.0 TDI 140 engine is so much more thirsty than other VAG cars with the same engine ? My car has now done 10.5K miles and compared to my old TDI 130 the fuel consumptions is still fairly unexciting. I get 44-45 MPG on a motorway run if I'm really gentle, whereas the old TDI 130 on the same journeys would do 50-52 mpg. The thing that seems strange to me is talking to A3 and Passat drivers with the same engine, they seem to have never had issues with fuel consumption. My cars MPG was awful until I had done at least 6K miles.
How does everyone else get on with their VAG 2.0 TDI motor ?
Edited by Dynamic Dave on 01/11/2007 at 10:15
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The 2.0 unit is 16v, not 8 this will increase fuel consumption.
My A3 spends most of it's life driving round town and I get published urban figure or slightly better.
Motorway run I'll get high 40s - mine is a 170PS with DSG (nearly 5,000 miles), but figures are similar to the 140 I had. Best I ever did from the 140 was mid 50s on a trip to East Anglia - miles of mid 50s mph motoring.
I'm due a long trip this weekend so I'll report back next week.
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I suspect this engine has a particle filter as standard. If it employs similar technology to my old C5, it has to waste fuel to heat the filter & burn out the particles. This process, as you might guess, does nothing for the fuel consumption. I have now moved on to a 130 Passat & much improved fuel consumption.
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It's well documented that throughout the VAG car range, the 2.0 PD diesels (Euro Cat IV) are more thirsty that the Cat III units due to the restriction and regeneration requirements of the DPF.
The 130PS PD engine was the best diesel VAG produced - sadly now ruined by legislation.
659.
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This is a factor in keeping my 1.9TDi (3 years, 46000 and multitronic) and not buying another. Just hope the multitronic keeps going. I wouldn't go to a main dealer for a replacement box in the event of a catastrophy but you might want to know that I casually asked and was quoted £6000. (I didn't ask if that was with our without VAT)
Edited by Dynamic Dave on 01/11/2007 at 12:35
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It's well documented that throughout the VAG car range the 2.0 PD diesels (Euro Cat IV) are more thirsty that the Cat III units due to the restriction and regeneration requirements of the DPF. The 130PS PD engine was the best diesel VAG produced - sadly now ruined by legislation.
I agree with the last statement, but the TDI 140 doesnt have a DPF, only the TDI 170 has this in the UK. I have physically looked at mine and there is no DPF.
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Returned earlier today from a 400 mile trip to Worcestershire/Shropshire border country from Yorkshire - steady journey to Ironbridge on the way using M1, A38 then A5 cross country followed by A and B roads to south of Ludlow. Motorway all the way back. I've just filled up again and it took 38 litres - 47.789 mpg.
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