11 28 050 Removing A/C compressor drive belt (COOPER S)

Special tools required:

11 8 410
11 8 470

IMPORTANT: Drive belt tensioner is subject to heavy tension. Make sure that locking pin is correctly seated. Mark the direction of rotation of the drive belt if it is to be reused. Replace the drive belt if it is fouled with coolant/engine oil or hydraulic fluid.

Necessary preliminary tasks:

Remove tank venting valve. Refer to 13 90 500 REPLACING TANK VENTING VALVE .
Remove underpan. Refer to 51 47 490 REMOVING AND INSTALLING/REPLACING FRONT UNDERBODY PROTECTION (ENGINE) .
Remove right front wheel. Refer to 36 10 300 REMOVING OR INSTALLING FRONT OR REAR WHEEL .
Remove right wheel arch liner. Refer to 51 71 040 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT WHEEL ARCH LINER .

NOTE: If special tool 11 8 410 is used in a car with an Aisin transmission, special tool 11 8 410 must be changed.

Modify special tool 11 8 410 at studs (1) to 5 mm.

Fig 1: Modifying Special Tool

G00397803

Courtesy of BMW OF NORTH AMERICA, INC.

Pull dipstick out of dipstick tube.

Remove tank venting valve.

Insert special tool 11 8 410 as shown.

Fig 2: Inserting Special Tool

G03309766

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Make sure paintwork is not damaged.

Attach special tool 11 8 410 to tensioner (1).

Fig 3: Attaching Special Tool Tensioner

G03309767

Courtesy of BMW OF NORTH AMERICA, INC.

Relieve tension of drive belt and block tensioner with locking pin, special tool 11 8 470.

NOTE: A second person may be needed to hep install special tool 11 8 470 in the second bore hole.

Remove drive belt.

Examine drive belt for traces of coolant or oil, replace if necessary.

Assemble engine. Check that drive belt is in correct installation position.