Charge air cooler, component overview

WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Charge Air Cooler, Component Overview

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Air duct

For charge air cooler

2 - Air guide hose

To lock carrier and to turbocharger
Must be free of oil and grease when installing

3 - Hose clamp (reinforced), 5.5 Nm

4 - Air guide hose

To Intake manifold
Must be free of oil and grease when installing

5 - Seal

Replace if damaged or leaking

6 - O-ring

Replace
Only in left charge air cooler

7 - Charge Air Pressure Sensor G31

Removing and installing → Charge Air Pressure Sensor G31 , removing and installing
Only in left charge air cooler

8 - 5 Nm

Only in left charge air cooler

9 - Mountings

10 - Bracket for charge air cooler

11 - Rubber grommet

12 - 22 Nm

13 - Air charge cooler

Removing and installing → Left and right charge air coolers, removing and installing

14 - Bracket for refrigerant line

15 - 15 Nm