Recommended tools to clean an engine compartment (like this 2007 Audi A4 Avant).

Recommended tools to clean an engine compartment (like this 2007 Audi A4 Avant). First, P21S Total Auto Wash. A great cleaner for the dirt and grime that accumulate on the plastic, rubber, and metal surfaces in the engine bay.

Engine Splash Shield Under Cover For 2009-2012 Audi A4 / 10-12 A5 Quattro

2007 Audi A4 2.0T Avant quattro

Best B7 Audi A4 2.0T FSI Upgrades

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2007 Audi A4 Avant 3.2 - Silver — BN Imports

SUPER CLEAN ENGINE BAY - Widebody Audi A4 Avant Wagon

Engine cleaning with a pressure washer - Audi A4 B8 2.0 TDI

2007 Audi A4 Avant Built for Backroads

New Car - Audi A4 Avant B7 ·