Further to 4b: Fine balancing of the rear wheels
NOTE:
- Due to the all-wheel drive, all four wheels must be raised and must be able to turn freely.
- Do not damage any parts with the take-up fork of the measuring support!
- Position measuring support at the rear axle on the right and left. Before the first measuring run, re-check to ensure that slipping from the measuring support is not possible!
- Set the sensitivity control to 3...3.5 (depending on the equipment version). This corresponds to approx. 1/3 of the max. sensitivity.
- Perform measuring run at a speed of 130 km/h or 1,150 to 1,200 rpm (wheel revolutions) in the highest gear. Affix the corresponding balancing weight.
- Perform a check run. Calibrate the finish balancer if the balancing result is unsatisfactory. This means that the sensitivity control must be adapted to the actual conditions.
- Then (in the case of a good balancing result) slowly increase the speed to 190 km/h and carefully observe at what speed vibration can be felt at the steering wheel and/or seat again (mainly at 175 +/- 5 km/h).
- Maintain this speed and re-balance the wheels in the same way as at 130 km/h. Do not affix any new weights; instead, improve the wheel running smoothest by changing the existing weights according to the balance correction schematic.
The imbalance values shown here in this speed range are not real values. They are actually max. 1/4 to 1/3 of the indicated values.
The subjective impression in the vehicle is the decisive criterion here. The balancing process is complete only when no more vibrations caused by imbalance are perceptible!