Audi A4: Engine

 Control Module/Digital Sound System Amplifier, Removing and Installing

Special tools and workshop equipment required Fiber-Optic Repair Set - Connector Protective Caps -VAS6223/9-. The Digital Sound System Control Module -J525--1- is located behind the left luggage compartment side trim panel.   Note If replacing the control module, select the "Replace contr

 Water Drain Hoses

Overview - Water Drain Hoses Overview - Front Water Drain Hoses 1 -  Grommet Push all the way into the body using a soap solution 2 -  Front Water Drain Hose Cleaning. Refer to → Chapter "Water Drain Hoses, Cleaning". Removing and installing. Refer to → Chapte