11 28 020 Replacing tensioning device for alternator drive belt (N14)

WARNING: This page is about a different car, the 2008 MINI Cooper and 2007 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Tensioning device subject to spring bias (danger of injury!) .

Necessary preliminary tasks:

Bring Front Panel into service position.
Disconnect lambda oxygen sensor cable.

Pretension tensioning device (1) with tool (2) in direction of arrow.

Press in locking pin (3) in direction of arrow and hold.

Release tool (2) slowly and secure locking pin (3) in position.

NOTE: Locking pin (3) holds tensioning device (1) at pretension.

Fig 1: Belt Tensioner, Wrench, Drive Belt, Locating Pin And Removal Directions

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (2).

For tightening torque refer to 11 28 1AZ in 11 28 V-RIBBED BELT WITH TENSION AND DEFLECTION ELEMENT .

Remove tensioner (3).

Fig 2: Tensioner And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Lever tensioning device (1) with tool (2) in direction of arrow.

Locking pin (3) is pretensioned with a spring and is automatically relieved during unlocking.

Fig 3: Belt Tensioner, Wrench, Drive Belt And Installation Direction

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.