Coolant hoses do not need to be released!

IMPORTANT: Belt tensioner is under high initial spring preload.

Slowly and carefully pre-tension belt tensioner (1) in direction of arrow up to stop.

Secure special tool 11 3 340 in dowel hole (2).

Belt tensioner in installation position.

Remove drive belt.

Fig 1: Identifying Belt Tensioner Tensioning Direction

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: On vehicles which do not have a power steering pump, a deflecting element (3) is fitted in place of the power steering pump.

IMPORTANT: Belt tensioner is under high initial spring preload.

Put on the drive belt.

Remove special tool 11 3 340 from dowel hole (2).

Slowly relieve tension on belt tensioner (1).

Installation note:

Make sure drive belt is in correct installation position.

Fig 2: Identifying Belt Tensioner Tensioning Direction

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.