Changing M271 serpentine belt

How to change the serpentine belt on Mercedez-Benz M271 engine as found in C180,C200, C230 and E200 Kompressor. 1. Remove air duct, three clips 2. Unscrew hose clamp of breeder hose and pull loose from multiband silencer 3. Unscrew hose clamp at the compressor end of multiband silencer 4. Remove spring clip at intercooler end of multband silencer and pull out hose 5. Unscrew two E10 screws securing multiband silencer to engine (fiddly!) 6. Wiggle multiband silencer out from engine bay 7. Use T55 torx bit o