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Home >> BMW >> 2021 >> 430i 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Accessory Drive Belt & TENSIONER -- Repair (G22, G23 & G26) >> 11 28 Drive Belt And TENSIONER >> 11 28 020 Replacing belt tensioner for drive belt of alternator (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan) >> Removing belt tensioner of alternator

Removing belt tensioner of alternator

Preliminary work 

CAUTION: Component with preload  .
Injury hazard! 
  • Reduce preload as far as possible before disassembly. Relieve component.
G14229396Courtesy of BMW OF NORTH AMERICA, INC.