Now I have tried to unscrew it out. However, this is provided on one side with a relatively long bolt. Therefore it is necessary to push the cylinder back to the engine compartment. This is not possible, since it is at the lower part of the brake power amplifier. That is, it is only necessary because of this long bolt the Brmskrft amplifier with ABS hydraulics etc. lo This can’t be true, what Volvo is allowed to do. Has anyone ever done this before? Or is there another trick? In addition, there are two versions of cylinders. The old version with threaded connection for the hydraulic line and a new one in which the hydraulic line is plugged and secured with a clip somehow. How to get the clip in the engine compartment under the brake hydraulics in the built-in condition, the dear G ott. The part is simply round and no clip stands out. It is to despair. Someone knows this problem mfG