The noise giving differentials are a relatively typical phenomenon in rear wheel driven vehicles and it’s typical that the noise, even faint, is troubling and can be heard within certain speed range or ranges (= frequency range).

According to our experiences with MB, BMW and other rear wheel driven brands the results vary somewhat depending on the object, reason and the current condition and wear rate of the device to be treated. It’s possible that RVS doesn’t have the capacity to totally remove the noise, but RVS helps basically always. The earlier the stage of the noise problem the better the potential for a totally successful RVS treatment result. Usually, if not totally eliminated, the noise level at least declines and often the noise giving speed (frequency) range changes and becomes lower and more tolerable at the same time.

It’s obvious (but not evident) that a strong noise indicates of bigger wear or bigger problem. Restoration of such device request naturally for more RVS compound than the restoration of problems giving noise hardly audible. If the wear and/or noise are extensive it’s recommendable to carry out the RVS treatment twice. Sometimes it is necessary and it makes sense to treat even three times.

I hope my reply at least partly your expectations and encourages you to try the effect of the RVS Technology.

It cannot harm…