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Home >> BMW >> 2016 >> Z4 sDrive35is >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine - Repair (N20) -- Z4-E89) >> 1128 V-ribbed belt w.tens./deflect.elemt >> 11 28 020 Replacing tensioning device for alternator drive belt (N20)

11 28 020 Replacing tensioning device for alternator drive belt (N20)

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Special tools required: 

Necessary preliminary tasks: 

Remove special tool 11 0 390 from the belt tensioner (1), if applicable a lock pin (2).

Release screw (3) on belt tensioner.

Tightening torque 11 28 1AZ .

Fig 1: Identifying Belt Tensioner, Lock Pin And Screw
G09920820

Assemble engine.