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Home >> BMW >> 2021 >> 840i xDrive 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Accessory Drive Belt & TENSIONER -- Repair (G14, G15, & G16) >> 11 28 Accessory Drive Belt And TENSIONER >> 11 28 020 Replace belt tensioner for drive belt of the alternator (M850i coupe/convertible/Gran Coupe xDrive sedan) >> Removing the belt tensioner

Removing the belt tensioner

CAUTION: Component with preload. 
Injury hazard! 
  • Reduce preload as far as possible before disassembly. Relieve component.

Preliminary work 

G14253285Courtesy of BMW OF NORTH AMERICA, INC.