Genuine BMW BMW Thermostats for BMW G01 X3 xDrive30i B46 2.0L

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BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.

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Genuine BMW - Thermostat with housing and gasket - 11537644811 ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with the Gen1 B48/B46 only - not compatible with the later Gen2 B48 (TU) engines

T#:539226

Part#: 11537644811

In Stock

Sale - Save 5% $ 544.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 517.48 USD

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Sale - Save 5%

$ 544.99

This product was last offered at the strikethrough price on
06-25-2026

$ 517.48 USD

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11537644811 - Thermostat with housing and gasket. The thermostat controls the flow of coolant based on temperatures in the engine. This is a crucial component to your cooling system and making sure your car is operating properly.

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Genuine BMW Coolant Thermostat Module - BMW G20 G22/23 G30 B48 2.0L ...

For models with the B48D, B46D, or B46X engines only - Not for the earlier Gen1 or late...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:617367

Part#: 11538642560

In Stock

9% off MSRP $ 446.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 408.99 USD

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9% off MSRP

$ 446.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 408.99 USD

Add to Wish List

Modern BMW thermostats are electronically controlled, allowing the DME/ECU to directly regulate coolant flow throughout the engine and its components. This system enables the thermostat to operate based on a broader range of temperature inputs, such as coolant, cylinder head, engine block, and oil temperatures, for more refined control of engine warm-up and temperature across diverse conditions. Unlike traditional thermostats, which simply open or close to permit coolant flow, this system uses a rotary valve for more dynamic control. The rotary valve adjusts to various positions, allowing for partial or full coolant flow to designated passageways as needed. This precision control helps your BMW's engine reach optimal temperatures quickly and ensures efficient heat management under various driving conditions.

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Genuine BMW Water Pump & Thermostat Kit - Gen 1 B46 2.0L

For model years 2018-2019

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T#:35863148

Part#: 11518638026KT

Ships in 3 Business Days

$ 761.99 USD

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$ 761.99 USD

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The cooling system has always been a weak point for BMW. Two of the biggest issues are the water pump and thermostat. This continues to be true even on the newest B-Series engines found in 2016+ BMWs. This kit includes a brand new Genuine BMW water pump, a new thermostat (now referred to as a Heat Management Module), and 1 gallon of BMW's G48 coolant concentrate (makes 2 gallons of 50/50 coolant). Don't spend thousands of dollars at the dealership, these can easily be replaced in an afternoon with basic mechanic's tools.

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Genuine BMW BMW Thermostats for BMW G01 X3 xDrive30i B46 2.0L

Genuine BMW - Thermostat with housing and gasket - 11537644811 ...

Genuine BMW Coolant Thermostat Module - BMW G20 G22/23 G30 B48 2.0L ...

Genuine BMW Water Pump & Thermostat Kit - Gen 1 B46 2.0L

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