Genuine Audi A3 Drive Belt

Audi A3 Drive Belt Parts and Q&A

• Serpentine Belt
  04L-260-849-AB
  Q: How to renew the poly-vee drive belt and adjust its tension on Audi A3?

  A:

  The poly-vee drive belt drives the alternator and, where fitted, the air conditioning compressor, with the drive belt tension adjusted automatically by a spring-tensioned idler on all engines. To renew the drive belt, first remove the engine top cover. For better access, apply the handbrake, jack up the front of the vehicle, and support it on axle stands before removing the right-hand front roadwheel and the access panel from the inner wheel arch. If reusing the drive belt, mark it for clockwise direction to ensure correct refitting. On all 2.0 litre and 1.6 litre SOHC engines, use a spanner on the lug provided to turn the tensioner clockwise and lock it in the released position with a drill. For 1.6 litre DOHC engines, turn the tensioner central bolt anti-clockwise to release the tension, then insert a suitable drill bit or metal rod to hold the tensioner. Note the routing of the drive belt, then remove it from the crankshaft pulley, alternator pulley, and air conditioning compressor pulley. Locate the new drive belt on the pulleys, release the tensioner, and ensure the belt is correctly positioned in the multigrooves. Finally, refit the access panel and roadwheel, lower the vehicle to the ground, and replace the engine top cover.
• Serpentine Belt
  06F-260-849-L
  Q: How to improve access to replace the drive belt on Audi A3?

  A:

  In order to increase access, use the handbrake, lift up the front of the car, and place it on axle supports. Take the right front wheel of the car out along with the panel on the inner wheel arch. A spanner is supplied to a lug which is used to clockwise turn the tensioner and then locked in the released position by passing a drill bit through the lug into the tensioner body. Record the position of the routing of drive belt, then pull it off of crankshaft pulley, alternator pulley and air-conditioning compressor pulley as needed. Find the new drive belt on the pulleys, take off the drill bit, and loosen the tensioner, be sure the belt is fitting in all the multigrooves of the pulleys. Install the access panel and roadwheel again and then lower the vehicle to the ground.