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Home >> Mini >> 2019 >> Cooper Clubman S ALL4, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Engine - Repair - B46 & B48 Engines, Cooper S & JCW (F55, F56)) >> Drive Belt And TENSIONER >> 11 28... Tensioning/releasing alternator drive belt (B48, B46)

11 28... Tensioning/releasing alternator drive belt (B48, B46)

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Special tools required: 

Preliminary work needed: 

If necessary, carry out work with aid of a second person.

Removal: 

Release expansion rivet (1).

Release screw (2).

Remove partition wall (3).

Fig 1: Line And Screws
G11645540Courtesy of BMW OF NORTH AMERICA, INC.

Loosen screws (1).

Unclip line (2).

Fig 2: Line And Screws
G11645410Courtesy of BMW OF NORTH AMERICA, INC.
WARNING: Injury hazard when tensioning or releasing the drive belt. Release belt tensioner (1) on screw (2) in arrow direction (refer to the following instructions).
Fig 3: Releasing Belt Tensioner
G00554468Courtesy of BMW OF NORTH AMERICA, INC.

Use special tool 2 365 291 to release belt tensioner.

Fig 4: Special Tool 2 365 291
G00554469Courtesy of BMW OF NORTH AMERICA, INC.

Position special tool 2 365 291 on the idler pulley of the belt tensioner.

Fig 5: Positioning Special Tool 2 365 291 On Idler Pulley
G00554470Courtesy of BMW OF NORTH AMERICA, INC.

Unclip fuel lines from bracket.

Release belt tensioner with special tool 2 365 291 in arrow direction.

Fig 6: Releasing Belt Tensioner
G00554471Courtesy of BMW OF NORTH AMERICA, INC.

Operation needs to be carried out by a second person helping.

Secure belt tensioner (1) in place with special tool 11 0 390.

Fig 7: Locking Belt Tensioner With Special Tool 11 0 390
G00554472Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: If the special tool 11 0 390 cannot be mounted, the engine must be pushed slightly (max. 3 mm) at the engine mount in the direction of the arrow using the mounting lever (1).
Fig 8: Pushing At Engine Mount Using Lever
G00554473Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Tighten down screws (1) with specified torque.

Tightening torque: 11 00 2AZ .

Fig 9: Line And Screws
G11645410Courtesy of BMW OF NORTH AMERICA, INC.