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Home >> BMW >> 2021 >> X2 sDrive28i >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Accessory Drive Belt & TENSIONER -- Repair X2 (F39) >> 11 28 V Belt With Belt TENSIONER And Idler Pulley >> 11 28 020 Replacing alternator drive belt tensioner (X2 M35i 2019-2022) >> Removing the belt tensioner

Removing the belt tensioner

WARNING: Working on 12 V electrical system  .
Risk of short circuits! Risk of fire! 
  • Make sure that there is no charger  connected to the jump start terminal in the engine compartment.
  • Detach battery ground lead from battery.
  • For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.

Preliminary work 

CAUTION: Component with preload  .
Injury hazard! 
  • Reduce preload as far as possible before disassembly. Relieve component.
NOTE: TECHNICAL INFORMATION 
The belt tensioner must be installed to relieve the tension. The special tools or transportation retainers must be installed for disassembly.
G12701016Courtesy of BMW OF NORTH AMERICA, INC.