BMW oil pan refers to the metal pan that is located under the engine block. It is bolted and sealed onto the engine block. Its main purpose is to catch dripping oil from the engine block and allow it to re-circulate back to the oil reservoir. The oil in the oil pan also allows the moving parts of the engine to be partially immersed even when the engine is not running. By being partially immersed, the moving parts, particularly the camshaft and crankshaft will have minimal resistance during engine start.
Basically, an oil pan such as the BMW oil pan can still be considered as a component of the engine oil system. The other parts of the engine oil system include the oil reservoir, the oil pump, the oil filter and the oil heat exchanger. The oil heat exchanger is basically a small radiator that facilitates the dissipation of excess oil heat. When the oil enters the engine block, it immerses the moving parts such as the pistons and valves. Although the oil is primarily intended to lubricate the moving parts, the oil inevitably absorbs some heat from the engine.
If the oil becomes excessively hot, it will be less effective in lubricating the moving parts. Consequently, the moving parts will start to overheat due to friction. The moving parts may expand and become deformed. This will lead to the slowing down and eventual locking of the moving parts. Pressure will uncontrollably increase which can lead to engine breakdown. Typically, heated oil may overflow onto the oil pan. The BMW oil pan prevents the oil from being wasted. Discount BMW oil pan can be conveniently purchased online.