How to Replace the Serpentine Belt
BMW X5 - How to Replace the Serpentine Belt Only problem area might be getting fan off water pump and getting tension on new belt a bit tricky. it has 2 belts: serpentine and air conditioning (AC). When either belt shows cracks in the belt ribs, time to replace. Tools required: 30 millimeter (mm) thin wrench. I get thin wrenches from bicycle stores. 9mm socket or wrench 10mm socket or wrench. 13mm socket. 17mm socket. 2 ratchets or a ratchet and a breaker bar. Long flat blade screw driver. Flashlight or shop work light. Getting old serpentine belt off: Park on flat, well lit place. There is no need to jack up the car. Open hood and use a stick to prop it up. Hood should stay up on its own, but you do not want it to come crashing down on you while you leaning over engine. Under front of car, remove plastic shield that extends from bumper backward to the skid plate. This shield is held in place with 9 and 10mm fender screws. After removing...