2013-2017 Audi A5 2.0 LITER ENGINE ONLY. 2013-2017 Audi A5 Quattro 2.0 LITER ENGINE ONLY. 2013-2017 Audi A4 2.0 LITER ENGINE ONLY. 2013-2017 Audi A4 Quattro 2.0 LITER ENGINE ONLY. Diagnostic Analysis : The most common problem with this particular compressor is usually not a failure of the compressor itself.
