Hello guys I have a 645ci with now just under 180000KM. What is it about the durability of the engines ordered ? With regard to the engine capacity the power is not very much, therefore it should actually last long. Problematic are the features like Vanos or Valvetronic. Could the owners please specify the KM stands + repairs. With mine was done in the last 3 years the following: -Differential at 145000KM (cookers in case of load changes) (Diff is used for manual switching s -Manual transmission at 155000KM (singing of synchronous rings, bearing damage) -Air mass meter at 158000KM (power loss) -Water pump at 170000KM (it has completely disassembled during driving) -Back guide handlebar at 178000KM My engine is actually running very well. According to compression testing, all cylinders are in the green area.