TheAudi DETA or A4 B9 2.0 TDI 2.0-liter diesel engine has been assembled since 2015 and installed in its popular longitudinal models. There is a similar diesel engine with the same power characteristics and DESA index. The 2.0-liter Audi DFBA 2.0 TDI diesel engine has been produced by the company only since 2018 and is installed on
3 Dec 8, 2016. #1. I have looked on here but can not find a great deal. So, now I have this 2.0 tdi tank but would like to do a few things to it to maybe improve the mpg and also possibly the ride. I have been told to get a Miltek Exhaust and Darkside intercooler then on the other hand I have also been told to avoid them.Audi2009 2.0 TDi P0299 fault code saying Turbo charger under boost!! Please help? #1. MSS3. View Profile View Forum Posts Engine code would be helpful as well IF ITS A 2.0 PD THEN MOST LIKELY TO BE THIS ( vacuum unit of intake manifold ) IF FITTED, THESE UNITS FAIL AND DEPLETE VACUUM By Kofi H in forum Audi A4 -