Audi A4 || What is TDI engine || Why TDI engine used in AUDI, SKODA and VOLKSWAGEN ||best luxury car

Hello everyone
today I come with a new video of Audi A4 2013 model 2.0 Tdi
In today video I will tell you about
what is TDI engine
full form of TDI engine
why TDi engine is better than other diesal engine
why diesal engine give more mileage
use of turbo in TDi diesal engine
and
what to check when buying a used car
how to check a used car before buying
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