Wheel balancing (Audi 100 C4)

Wheels must be balanced statically and dynamically. There are two methods for this:

The wheel is removed from the car and installed on a balancing machine. It is rotated in a test mode. The resulting imbalance is balanced by placing lead weights.

To neutralize the last imbalances, it is necessary to perform precise balancing. In this case, the imbalances of the wheel hub and brake disk are also balanced. The wheels installed on the car are driven by the engine into the required rapid rotation, revealing the residual imbalance. It is again balanced with lead weights.

For all-wheel drive Audi-100 vehicles, all 4 wheels must be lifted to perform accurate balancing.

Due to the lack of their own drive, the rear wheels of front-wheel drive models are driven by an electric motor with a friction disc for dynamic balancing.

(This article was copied from an online resource: Audimanual.ru)