ERR1178 - Oil Pump – 200TDiDescription: Oil Pump 200Tdi is the engine driven pump responsible for circulating pressurised oil throughout the lubrication system of the 200Tdi 2. 5L direct injection diesel engine. Mounted in the lower front of the engine and driven off the crankshaft, the oil pump draws oil from the sump and delivers it under pressure to the main bearings, big end bearings, camshaft, and valve train. Wear in the pump gears reduces flow capacity and pressure,