Quote:
Originally Posted by Happy Jose
Also note that the oil cooler use the engine's coolant to remove excess heat from the oil.
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This is incorrect for a 135i. The oil cooler is a air-to-liquid heat exchanger mounted in the passenger side wheel well. Some 128's have an oil cooler that uses engine coolant that is mounted where the oil filter housing is, but not the 135i as far as I know.