11 31 090 Removing and installing/replacing chain tensioner (B36A/B38A)

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Necessary preliminary tasks:

Remove CATALYTIC CONVERTER

Removal:

Release chain tensioner (1).

NOTE: Have a cleaning cloth ready. A small quantity of engine oil will escape after the screw connection has been released.

Fig 1: Chain Tensioner

G11645133

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

If the chain tensioner is reused, its oil chamber must be drained.

Place chain tensioner on a level support and slowly compress.

Repeat process twice.

Fig 2: Compressing Chain Tensioner

G11671439

Courtesy of BMW OF NORTH AMERICA, INC.

Parts: Replace sealing ring (1).

Fig 3: Sealing Ring

G11645135

Courtesy of BMW OF NORTH AMERICA, INC.

Release chain tensioner (1).

Tightening torque 11 12 5AZ .

Fig 4: Chain Tensioner

G11645133

Courtesy of BMW OF NORTH AMERICA, INC.