The BMW T60 Torx Serpentine Belt Tensioner Tool, No. 68200, from SP Tools gives access to the T60 belt tensioner found on BMW 135, 335, 535 and all other models using the N54 twin-turbo straight-six engine. The wrench cuts labor time by reducing the number of parts to be removed to gain clearance for the tensioner. The unique wrench design loosens the spring pressure with minimal force.