How do check gearbox level on a vw t4?

To check the gearbox level on a VW T4, start by ensuring the vehicle is on a level surface. Locate the gearbox filler plug, which is typically found on the side of the gearbox. Remove the plug, and the oil level should be just below the edge of the hole; if oil drips out, the level is adequate. If not, add the appropriate gearbox oil until it reaches the correct level, then securely replace the filler plug.