Thermostat - 88 Degree - E24, E28, E30, E32, E34, E36, E39, Z3
The thermostat regulates the temperature of your coolant. At a predetermined temperature the thermostat will open to let coolant flow to the radiator and be cooled by airflow or the fan. Over time the thermostat will become stuck open or closed, leading to a variety of issues. A closed thermostat will never allow the coolant to reach the radiator and be cooled. Hot coolant will continue to circulate through the engine and absorb even more heat until boiling and the system overheats. An open thermostat is not as bad but is still not ideal - the coolant is always cool, with the temp needle always reading in the cool range. This tells the ECU to richen the fuel mixture to bring the car up to normal operating temp. So your fuel mileage decreases and the car runs rich.
Replacing the thermostat is an easy but messy job. This thermostat includes the main o-ring (but a housing gasket may be required). Consider replacing the housing and any associated temp sensors while you're in there. The cooling system will need to be bled after.
Most of the engines from the mid-1980s through the 1990s use the same thermostat design and they are interchangeable among the different temperatures. This is the 88* thermostat, towards the top of the range. However, keep in mind that BMW spent a lot of time engineering the cooling system to work in all kinds of conditions and changing thermostat temperature is not recommended to fix any failures in the cooling system.
Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.
This thermostat fits the following BMWs:
1977-1983Â E21 BMWÂ 323i
1986-1991Â E30 BMWÂ 318is 318ic 325e 325es 325i 325ic 325is 325ix
1992-1999Â E36 BMWÂ 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1982-1988Â E28 BMWÂ 528e
1986-1988Â E28 BMWÂ 535i
1989-1995Â E34 BMWÂ 525i 535i
1997-1998Â E39 BMWÂ 528i
1986-1989Â E24 BMWÂ 635csi
1988-1994Â E32 BMWÂ 735i 735il
1997-2000Â Z3 BMWÂ Z3 2.8 M Roadster M Coupe
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Product Details
The thermostat regulates the temperature of your coolant. At a predetermined temperature the thermostat will open to let coolant flow to the radiator and be cooled by airflow or the fan. Over time the thermostat will become stuck open or closed, leading to a variety of issues. A closed thermostat will never allow the coolant to reach the radiator and be cooled. Hot coolant will continue to circulate through the engine and absorb even more heat until boiling and the system overheats. An open thermostat is not as bad but is still not ideal - the coolant is always cool, with the temp needle always reading in the cool range. This tells the ECU to richen the fuel mixture to bring the car up to normal operating temp. So your fuel mileage decreases and the car runs rich.
Replacing the thermostat is an easy but messy job. This thermostat includes the main o-ring (but a housing gasket may be required). Consider replacing the housing and any associated temp sensors while you're in there. The cooling system will need to be bled after.
Most of the engines from the mid-1980s through the 1990s use the same thermostat design and they are interchangeable among the different temperatures. This is the 88* thermostat, towards the top of the range. However, keep in mind that BMW spent a lot of time engineering the cooling system to work in all kinds of conditions and changing thermostat temperature is not recommended to fix any failures in the cooling system.
Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.
This thermostat fits the following BMWs:
1977-1983Â E21 BMWÂ 323i
1986-1991Â E30 BMWÂ 318is 318ic 325e 325es 325i 325ic 325is 325ix
1992-1999Â E36 BMWÂ 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1982-1988Â E28 BMWÂ 528e
1986-1988Â E28 BMWÂ 535i
1989-1995Â E34 BMWÂ 525i 535i
1997-1998Â E39 BMWÂ 528i
1986-1989Â E24 BMWÂ 635csi
1988-1994Â E32 BMWÂ 735i 735il
1997-2000Â Z3 BMWÂ Z3 2.8 M Roadster M Coupe
Prop 65 Warning
- 11537511580
- 11531721002behr
- TX 28 88D
- tx2888d
- 2.124.88.312
- 11531721002
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