Audi A4 B7 - Problems, Reliability, and Tuning

A4 B7 Mods - TorqueCars

Which used Audi models should I avoid while buying a used Audi? I want a B7 A4 Quattro Avant 3.0 TDI. Is that a reliable car? - Quora

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2008-2016 Audi A4 2.0T Reliability In 2021

Here's WHY an Audi A4 B7 2.0T is a performance bargain in 2021!

Audizine Forums

Audi A4 tuning tips and A4 performance parts