Hello friends, the Mercedez pump is lubricated independent to the engine and therefore you have to check the oil by a red barilla, to put oil it has a red plug through the governor and also has a small one had on the side of the pump, that when you put oil and it is at the level the oil begins to bounce that that means that it is full, it also has a plug to drain the pump when you want to change the pump when you want to change the pump when you want to change the pump when you want to change La pompe lorsque vous souhaitez modifier la pompe lorsque vous souhaitez modifier la pompe lorsque vous souhaitez changer la pompe lorsque vous dans ce cas cette pompe est lubrifiée avec de l'huile, il y en a d'autres qui ne sont que lubrifiés avec du diesel.