Hello together, have the following problem. Mostly the Atos brakes quite normal, everything paletti. In between then the following error: No brake power amplifier, thus hardly any braking effect and a metallic noise. This problem is really to vomit, especially since I can not make a rhyme on it. You can enter the brake with all the force and there is no change. Then it stops completely normal again. This error can not occur at all for two weeks and there nn again several times in one day. The car now has about 125,000 km down. Does anyone have an idea??? Igelbuggy