How to Install a Sway Bar on a 2001 Audi A4

1. Loosen the lug nuts on the rear wheels using the 17 mm lug wrench. Raise the car with the floor jack and position the rear on top of the jack stands.
2. Remove the rear wheels so you can access the sway bar's end-links, located behind the brake rotors. Spray the hex nuts with the silicon lubricant to prepare them for the next step.
3. Insert the 5 mm hex key into the bolt. While keeping the key inserted, remove the nut from the end-link bolts with the 17 mm open wrench.
4. Unscrew the four 13 mm bolts that secure the driver- and passenger-side sway bar bushings to the subframe by holding the bolt's head with the 13 mm open wrench and using the 13 mm socket to unscrew the nut from the bolt.
5. Remove the sway bar by tilting it to the passenger side and gently sliding it away from the exhaust. The sway bar will not drop directly down to the ground because the exhaust slightly obscures it.
6. Grease the new bushings thoroughly before installing them on them onto the A4 in the following steps.
7. Reinstall and secure the new bushings with the 13 mm socket and wrench.
8. Position the new sway bar into place by sliding it up and over the exhaust and lining it up with the subframe mounting holes.
9. Reinstall the subframe mounting bolts and tighten them with the torque wrench to 18 foot-pound. Over tightening these bolts will make the bushing squeak while the car is being driven.
10. Secure the sway bar to the end-links with the 5 mm hex key and 17 mm open wrench. Tighten the end-link nuts to 74 foot-pound torque on each side with the torque wrench.
11. Mount the rear wheels and screw in the lug nuts, but do not tighten the lug nuts all the way into the wheel. It is best to use your fingers to ensure that you do not over tighten the lug nuts.
12. Lower the car and remove the jack stands. Using the 17 mm lug wrench, tighten the lug nuts all the way. Complete the procedure by using your torque wrench to ensure the lug nuts are tightened to 89 foot-pound.