The thermostat on your vehicle controls the flow of coolant based on temperature. When you just start your engine, the thermostat remains closed to accelerate the warm up process. After a few minutes, it opens up to allow the warm fluid to flow. If your vehicle is overheating but not blowing warm air from the heater, the problem is more than likely your thermostat.
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Replacement oil filter kit for the M30 "big six" 12 valve inline 6 cylinder engine, found in many 1982 to 1993 BMWs.
This oil filter fits the following BMWs:
1977-1981 E12 5 Series - 528i, 530i 1982-1988 E28 5 Series - 535i, 535is, M5 1989-1993 E34 5 Series - 535i, M5 1976-1989 E24 6 Series - 630csi, 633csi, 635csi, M6 1977-1987 E23 7 Series - 733i, 735i 1988-1994 E32 7 Series - 735i, 735iL Show More Show Less