Air Injection Control Valve: Service and Repair

11 72 060 - Removing and installing/replacing both secondary-air valves (S65)





Necessary preliminary tasks:
- Carry out system test: secondary air with BMW diagnosis system.
- Disconnect battery at negative lead.
- Remove left exhaust manifold.
- Remove right exhaust manifold Service and Repair.
- Remove secondary-air pump Service and Repair.
- Unfasten engine wiring harness partially and lay to one side.





Removing secondary-air valve, bank 1:
Unscrew nuts (1).
Remove secondary-air valve (2).

Installation:
Clean sealing surfaces.
Replace seal.





Removing secondary-air valve, bank 2:
Unscrew nuts (1).
Remove secondary-air valve (2).

Installation:
Clean sealing surfaces.
Replace seal.





Assemble engine.
Carry out system test: secondary air.