11 31 095 Removing and installing/replacing right hydraulic chain tensioner (S65)

Necessary preliminary tasks: 

• Remove EXPANSION TANK .
• Unfasten both A/C LINES on A/C compressor.

Release chain tensioner (1).

Installation: 

Replace sealing ring.

Tightening torque: 11 31 1AZ .

Fig 1: Identifying Chain Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.