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 (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.

Fig 1: Identifying Secondary-Air Valve And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Removing secondary-air valve, bank 2: 

Unscrew nuts (1).

Remove secondary-air valve (2).

Installation: 

Clean sealing surfaces.

Replace seal.

Fig 2: Identifying Secondary-Air Valve And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Carry out system test: secondary air.