11 72 060 Removing and installing/replacing both secondary-air valves (S65)
WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Carry out system test: secondary air with BMW diagnosis system.
- Disconnect battery at negative lead.
- Remove LEFT EXHAUST MANIFOLD (S65) .
- Remove right EXHAUST MANIFOLD .
- Remove SECONDARY-AIR PUMP .
- 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.