Accessory Drive Belt — Check (15,000 km) (Audi A4 B5)

1. Depending on the engine type and vehicle configuration, one, two or three auxiliary drive belts may be installed. The main belt drives the generator, the fan drive viscous coupling and the power steering pump. If an air conditioner is installed, the second belt from the crankshaft pulley drives the air conditioner compressor. On all engines, except AHL, the third belt from the additional pulley on the power steering pump drives the cooling system pump.

2. To gain access to the belts, lift the front of the car with a jack, then remove the protective pan of the power unit (if installed) and, if present, the top engine cover.

3. Check for delamination and cracks along the entire length of the belt. This requires turning the engine, which is done using a head with a ratchet, grasping the bolt on the crankshaft pulley. Unfold the belt between the pulleys so that you can check the back side as well. Make sure there are no abrasions on the back surface. Check the pulleys for cracks, burrs, curvature and corrosion. Use a small mirror if necessary.

4. If the belt requires replacement, please contact chapter 2A.