I am going to try to explain the problem without having seen it. My brother was doing some work and after a couple hours noticed a leak. It is coming from the pump near the hydraulic hose connections. He said it looks like a bolt that the head has been sheared off (maybe a 3/16 size?) but it may be a bleed screw or something? It is on the very underside of the case. He also said it looks like an allen head bolt is close to it. Any ideas or schematics of this area? It is a 2009 MY 1533. Thanks!