11 31 090 Installing and removing / replacing piston for chain tensioner (M62)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.

Remove upper section of suction filter housing style with mass air flow sensor.

Remove lower section of suction filter housing.

Fig 1: Removing Upper Section Of Suction Filter Housing Style With Mass Air Flow Sensor

G03152508

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screw connection.

Installation

Replace sealing ring.

For tightening torque, refer to 11 31 7AZ in ENGINE - TIGHTENING TORQUES - 540i .

Fig 2: Unfastening Screw Connection

G03152509

Courtesy of BMW OF NORTH AMERICA, INC.

Remove screw connection and piston for chain tensioner.

Fig 3: Removing Screw Connection And Piston For Chain Tensioner

G03152510

Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement of Components:

Screw plug
Sealing ring
Sleeve
Recoil spring
Hydraulic piston

Installation

Tapered end of recoil spring (4) faces hydraulic piston (5).

Fig 4: Arranging Components

G03152511

Courtesy of BMW OF NORTH AMERICA, INC.

Installation

To simplify assembly, drain oil chamber between sleeve and hydraulic piston.

Fig 5: Draining Oil

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Courtesy of BMW OF NORTH AMERICA, INC.