Is 1.6 TDI better than 2.0 TDI? Re: 2.0tdi any better than 1.6tdi The down side is fuel – the 2.0 will use more of it. Fact. Even if you drive like Miss Daisy you’ll use more, but if you have to flog the living daylights out of your 1.6, then I doubt you’ll notice as much difference.The TDI engine is a lot more lively and engaging than the 2.5 Liter in the Passat. The Insurance Institute for Highway Safety gave the Jetta its best possible rating of "Good" in the frontal
Your A4 is running at 725 PSI (50 bar) at idle and 1595 PSI (110 bar) under full load. Modern common-rail diesels can run up to approx. 20,000 PSI depending on the system type. The system in your Audi can't touch the diesels for pressure but the pressure and the rail pump and injector combo contribute to the noise.
For economy and reliabilty go for fwd 3.0 tdi (204bhp) model. Do same miles than 2.0 177 version with a bit more power too. Under powered 3.0 give reliabilty with movement to remap for more power ect without strain on the setup.
In this article, you will find the most common VW 2.0 TDI engine problems & the best solutions to get your vehicle running smoothly again. The VW 2.0 TDI engine was released as a replacement for the popular 1.9 TDI, and though the 2.0 has become popular, it is not quite as durable as its predecessor.