XC90 FWD L6-3.2L VIN 98 B6324S (2007)
M6. Refer to Specifications, B6324S See: Engine, Cooling and Exhaust/Engine/Specifications/Mechanical Specifications/Tightening Torque
Use: 19 mm fixed wrench, slacken the tensioner and relive the tension on the belt.
Use: 3 mm pin. and lock the tensioner in position.
When installing, check the belt's position on all belt grooves.