On a 119 you should be looking for two nipples with an allen (5 or 6mm) in the middle. They are right in front of the engine mounts. They are bolted vertically not horizontally to block and they are tapered (they don't use a washer, gasket). Just loosen them a few turns and the coolant will start pouring from the middle (allen hole). Make sure to uncover expansion tank.


Vinamg