Identification SAC clutch (Self-Adjusting Clutch)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

3 openings each with a pressure piece (1) of adjustment ring and a pressure spring (2)

NOTE: Illustration shows new position of pressure pieces.

Fig 1: Locating Pressure Springs

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Block flywheel with special tool 11 9 260 .

Fig 2: Blocking Flywheel Using Special Tools (11 9 260)

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Unfasten bolts and remove SAC clutch from flywheel.

IMPORTANT: Do not use a special tool to detach SAC clutch from flywheel.

Fig 3: Locating SAC Clutch Bolts

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Remove clutch plate (1) from flywheel.

Clean flywheel, check for wear and damage.

REPLACE DAMAGED FLYWHEEL.

Check grooved ball bearing in crankshaft for ease of movement and tightness and if necessary replace grooved ball bearing.

Fig 4: Identifying Clutch Plate

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IMPORTANT: Always replace clutch plates fouled e.g. by oil, cleaning agent.

Check clutch plate for damage and friction rust in hub profile and replace if necessary.

Check clutch disk for wear:

Measure lining protrusion at lining rivets at closing head (A) in each case.

NOTE: Rivet connection

Closing head
Swage head

Replace clutch plate if lining protrusion at closing head (A) is less than 1 mm.

Push clutch disk onto the cleaned transmission input shaft and check for easy movability.

Fig 5: Identifying Closing And Swage Head Rivet Connection

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not clean SAC clutch with high-pressure cleaner or washing machine as this may impair function of adjustment unit.
Clean friction surface only.
Check SAC clutch for wear and damage and replace if necessary.