1. Method for lubricating and/or cooling a transmission unit, in particular a transmission unit of the type which makes use of a continuously variable transmission (2) with pulleys (5-6) and an endless transmission element (7) provided in between, at least one hydraulic cylinder/piston unit (13) with a pressure chamber (15) which cooperates with the continuously variable transmission (2), and a pressure compensation chamber (23) cooperating with the above-mentioned pressure chamber (15), characterized in that at least part of the hydraulic medium coming out of the pressure compensation chamber (23) is guided back via a number of parts of the transmission unit (1) to be lubricated and/or cooled, so as to provide for the lubrication and/or cooling of these parts.