VW-MAN 8,136 problem with air compressor ! My air compressor no longer pushes compressed air into the boiler. Air pressure then dropped to 4 bar and then the parking brake was fixed, which is also so good as a safety function. The compressor has become so hot, so that the paint of the pressure line that goes to the boiler is smeared off. 1. Question: What can be the reason for this ? 2. Question: Does someone still have such a compressor lying around cost-effectively ? Thank you in advance for your answers here. MfG Thomas