It is not necessary to change the vacuum amplifier of the brakes on the BMW 3 E46 if the motor oil is hit, but it can be cleaned, but it will be very difficult to get to it. The oil in the vacuum booster may be due to the valve that is not operating. Product of the "vacuum" should only be on one side, if it is lost in two, it means that it is not in the right, and the oil will get into it again.
