17111437362 Oil Cooler Radiator Expansion Tank Thermostat For BMW E46 E53 E83 E85 E86 X3 X5 Z4 323 325 328 330 Part# 17 11 1 437 362

The thermostat is a valve that goes between the engine and the radiator. It's purpose is to keep the engine at the proper operating temperature. When the engine gets too hot, the thermostat opens up and lets the engine coolant flow through the radiator, where it cools off. When the engine is too cool, the thermostat closes and stops the coolant from flowing through the radiator, so the engine heats back up.
Coolant thermostat housing assembly regulates the flow of the coolant going through the radiator to keep the engine in its stable operating temperature preventing it from over heating. Therefore, making it a critical component in the vehicle as failure to replace may damage the engine and other critical parts due to overheating which can leave you stranded on the road. This housing also includes sensor for a complete replacement.
This Thermostat Fits For the Following Vehicles: 2003-2007 BMW Z4 2.5L 3.0L 3.2L; 2004-2010 BMW X3 2.5L3.0L; 2001-2006 BMW X5 3.0i 3.0L L6; 2001-2005 BMW 330xi 3.0L L6; 2001-2005 330xi Base Sedan 3.0L; 2001-2005 BMW 330i 3.0L L6; 2001-2005 BMW 330Ci 3.0L L6; 1999-2000 BMW 328i 2.8L L6;
Fits For the Following Vehicles: 2000 BMW 328Ci 2.8L L6; 2001-2005 325xi 2.5L; 2001-2005 BMW 325Ci 2.5L L6; 2001-2005 BMW 325i 2.5L L6; 1999-2000 323ti Base Hatchback 2.5L; 1999 323is Base Coupe 2.5L; 1999-2000 BMW 323i 2.5L L6; 2000 BMW 323Ci 2.5L L6;
Thermostat helps to reduce oil dilution, cylinder bore wear, fuel consumption, exhaust emission, and improve efficiency of the heating system. Customers can find the product you need accurately according to the OE number. OE part number: 1430872; 143-0872; 17111437362; 17 11 1 437 362

Product Description

What is it?

The thermostat is a valve that goes between the engine and the radiator. It's purpose is to keep the engine at the proper operating temperature. When the engine gets too hot, the thermostat opens up and lets the engine coolant flow through the radiator, where it cools off. When the engine is too cool, the thermostat closes and stops the coolant from flowing through the radiator, so the engine heats back up.
Coolant thermostat housing assembly regulates the flow of the coolant going through the radiator to keep the engine in its stable operating temperature preventing it from over heating. Therefore, making it a critical component in the vehicle as failure to replace may damage the engine and other critical parts due to overheating which can leave you stranded on the road. This housing also includes sensor for a complete replacement.

Customers can find the product you need accurately according to the OE part number. This is a compatible replacement part manufactured our factory. Associated vehicle models and part numbers are used in this listing only to identify the vehicles this fits.

Replacement Part Number:

1430872; 143-0872; 17111437362; 17 11 1 437 362.

For exact years and models, please check compatibility.

2000 BMW 323Ci ; 1999-2000 BMW 323i

2001-2005 BMW 325Ci ; 2001-2005 BMW 325Xi

2001-2005 BMW 325i ; 2000 BMW 328Ci

1999-2000 BMW 328i ; 2001-2005 BMW 330Ci

2001-2005 BMW 330Xi ; 2001-2005 BMW 330i

2004-2006 BMW X3 ; 2001-2006 MW X5 L6 3.0L

2003 BMW Z4 L6 3.0L ; 2007 BMW Z4 L6 3.0L

All models with Automatic Transmission Oil Cooler Thermostat

How to replace the thermostat?

STEP 1: REMOVING THE RADIATOR FAN AND SHROUD

Disconnect the negative battery cable by loosening the 10mm nut; Remove the air collector push pin retainers; Remove the air collector; Disconnect the two electrical connectors on the passenger side of the fan shroud; Remove the T25 screw from the passenger side corner of the fan shroud; Remove the push pin retainer from the driver side corner of the fan shroud; Loosen the radiator fan clutch using a fan clutch tool; The fan clutch is reverse threaded; Remove the fan and fan shroud.

STEP 2: REMOVING THE AIR FILTER BOX

Disconnect the MAF electrical connector; Loosen the air filter box hose clamp; Disconnect the air tube from the air filter box; Release the air filter box lever latches; Remove the air filter box lid; Remove the air filter; Remove the two 10 mm bolts securing the air filter box; Disconnect the wiring from the retaining tab; Remove the air filter box.

STEP 3: REMOVING THE OIL COOLER THERMOSTAT

Remove the coolant reservoir cap; Open the radiator drain at the bottom driver side of the radiator to drain the coolant; Release the retaining clips to disconnect the upper radiator hose from the coolant reservoir and radiator; Remove the T20 radiator screw above the coolant reservoir; Remove the T20 coolant reservoir screw; Pry up the retaining clip to disconnect the coolant hose from the reservoir. More coolant will drain out, have a drain pan ready; Pull the reservoir retaining lever towards the center of the vehicle; Lift the reservoir straight up to remove it; Disconnect the coolant level sensor electrical connector; Remove the oil cooler thermostat.

STEP 4: INSTALLING THE OIL COOLER THERMOSTAT

Insert the oil cooler thermostat using the keyway as a guide; Reconnect the coolant level sensor electrical connector; Lower the coolant reservoir onto the connections and lock the retainer; Reconnect the hose to the reservoir and lock the retainer; Install the T20 reservoir screw; Install the T20 radiator screw; Install the upper radiator hose onto the thermostat housing and lock the retainer; Install the upper radiator hose onto the radiator and coolant reservoir and lock the retainers.

STEP 5: INSTALLING THE RADIATOR FAN AND SHROUD

Lower the radiator fan and fan shroud together; Tighten the fan clutch onto the water pump pulley by turning it clockwise; Torque the fan clutch nut to 22-29 ft-lb if able; Install the fan shroud push pin retainer on the driver side; Install the fan shroud T25 screw on the passenger side; Reconnect the two electrical connectors on the passenger side of the fan shroud.

STEP 6: INSTALLING THE AIR FILTER BOX

Lower the air filter box into position

Install the two 10 mm air filter box bolts

Install the air filter

Slide the air filter cover onto the air tube

Secure the air filter cover with the lever latches

Reconnect the MAF electrical connector

Tighten the air filter cover hose clamp

Insert the air collector into the air filter box

Secure the air collector with the push pin retainers

Reconnect the negative battery cable and tighten the 10 mm nut

STEP 7: REFILLING THE COOLANT

Use coolant specified by the vehicle manual

Fill the coolant reservoir

Remove the bleeder screw adjacent to the reservoir opening

Fill the reservoir until coolant flows out the bleeder opening

Reinstall the bleeder screw

Adjust the coolant level as necessary

Run the engine with the heat on to bleed the system

Adjust the coolant level as necessary