Audi AMB Service Manual page 314

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
Fig. 414: Disconnecting Connector At Engine Coolant Temperature (ECT) Sensor G2/G62
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Disconnect connector - arrow - at Engine Coolant Temperature (ECT) sensor G2/G62.

Move wiring harness at bulkhead clear.

Fig. 415: Vacuum Hose Disconnected At Combination Valve
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Disconnect vacuum hose - arrow - at combination valve.

Remove 4 bolts from combination valve and remove combination valve.

Installing
Install in reverse order, paying attention to the following:
NOTE:
Replace seals.

Tightening torques
Component
Secondary air combination valve to cylinder head
2005 Audi A4 Quattro
1:01:37 AM Page 302
Nm
10