2025 BMW X6 Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

4 Coolant / Antifreeze parts are listed for the 2025 BMW X6, from VALVOLINE and PRESTONE. 3 parts fit every engine; the other 1 is engine-specific.

In the Economy grade, VALVOLINE supplies 1 part: the catalog's value-priced group. A representative part number is VALVOLINE 719009.

The Heavy Duty section lists 1 option from PRESTONE — rated for severe service. PRESTONE AFC12100 is listed in this group.

The Standard Replacement section lists 1 option from VALVOLINE — built to original-equipment specification. VALVOLINE 904685 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

This group includes VALVOLINE 719009, PRESTONE AFC12100 and VALVOLINE 904685 and the remaining parts above.

This table covers the bleeders used to purge air from the coolant circuit. Read more

2 Coolant Air Bleeder parts for the 2025 BMW X6 come from DORMAN.

Part numbers include DORMAN 902404 and DORMAN 902404HP.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

6 Coolant Reservoir parts for the 2025 BMW X6 come from 3 brands — MAHLE / CLEVITE, REIN and TECHPRO. The "Popular" part is MAHLE / CLEVITE CRT302000S. 5 parts fit every engine; the other 1 is engine-specific.

This group includes MAHLE / CLEVITE CRT302000S, REIN EPK0277 and MAHLE / CLEVITE CRT295000S and the remaining parts above.

This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

7 Coolant Reservoir Cap parts for the 2025 BMW X6 come from 3 brands — REIN, CALORSTAT and MOTORAD. The "Popular" part is REIN CPE0035. 3 parts fit every engine; the other 4 are engine-specific.

Part numbers include REIN CPE0035, REIN CPE0034 and CALORSTAT RC0084, among others listed above.

This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap. Read more

5 Radiator parts are listed for the 2025 BMW X6, from CSF, FVP and UAC. 1 part fits every engine; the other 4 are engine-specific.

Listed part numbers: CSF 4009, CSF 4011 and FVP RAD13989, plus the other parts above.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

2 Temperature Sender / Sensor parts are listed for the 2025 BMW X6, from NISSENS and STANDARD MOTOR PRODUCTS. All of them fit every engine offered in the 2025 X6.

This group includes NISSENS 207110 and STANDARD MOTOR PRODUCTS TS658.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

5 Thermostat parts for the 2025 BMW X6 come from 4 brands — MOTORAD, CALORSTAT, FOUR SEASONS and 1 other brand.

Listed part numbers: CALORSTAT TE7331105J, FOUR SEASONS 85956 and MOTORAD TA3156, plus the other parts above.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2025 BMW X6, from FEL-PRO and MAHLE / CLEVITE.

This group includes FEL-PRO 36226 and MAHLE / CLEVITE C32504.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

This group shows a single part: GRAF AWP061.