When I replaced my belt, I just removed the three allen head bolts that secured the plastic fan to the assembly. Took ten minutes. That left me enough room to see everything and replace the belt in about 1/2 hour.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car