For G40 & G60-charger.
As a result of extreme temperature fluctuations in the engine room, the oil tubes will get fragile with the time and can be leak. In this case, the oil supply of the G-Supercharger will be interrupted and a quickly damage of the G-Supercharger is the result. Therefore, the two oil tubes must be replaced regularly.
Specialy for G60 our lower oil pipe has a length of 400mm. According to the VW repair guide the length from the lower pipe should be reduced (only G40) to 165mm.