The 2025 BMW M5 has 15 cooling system parts with verified fitment on this page — 6 part types and 8 brands, covering the 4.4L V8 ELECTRIC/GAS Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 2025 BMW M5, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. Most of the listed parts are Coolant Reservoir Cap (5 parts), Thermostat (4 parts) and Radiator (2 parts). The other 3 part types cover the remaining 4 parts.
The 2025 BMW M5 came with a single engine, the 4.4L V8 ELECTRIC/GAS Turbocharged, and every part is verified against it.
8 brands supply cooling system parts for the 2025 BMW M5, led by REIN (3 parts), CALORSTAT (3 parts) and MOTORAD (2 parts), plus 5 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2025 BMW M5. 1 part has it: REIN CPE0034 (Coolant Reservoir Cap). Each part number opens a page with every vehicle that part fits.
Coolant / Antifreeze
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE | 904685 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HT-12 Green1 Gallon | View on Amazon |
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.
One part is listed for the 2025 BMW M5 — VALVOLINE 904685.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Popular | CPE0034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | RADIATOR | View on Amazon |
| CALORSTAT | RC0084 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| CALORSTAT | RC0087 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Maximum Pressure Rating: 30.0 PS | View on Amazon |
| MOTORAD | T76 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| REIN | CPE0078 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Intercooler | View on Amazon |
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.
5 Coolant Reservoir Cap parts for the 2025 BMW M5 come from 3 brands — REIN, CALORSTAT and MOTORAD. The "Popular" part is REIN CPE0034.
Listed part numbers: REIN CPE0034, CALORSTAT RC0084 and CALORSTAT RC0087, plus the other parts above.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MAHLE / CLEVITE | CR2799000P | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Brazed cooling fins | View on Amazon |
| NISSENS | 606233 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Auxiliary (Engine Cooling) (Location-Wheel Arch) | View on Amazon |
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.
2 Radiator parts are listed for the 2025 BMW M5, from MAHLE / CLEVITE and NISSENS.
Listed part numbers: MAHLE / CLEVITE CR2799000P and NISSENS 606233.
Temperature Sender / Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS | 207110 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Location-Engine Block | View on Amazon |
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.
One part is listed for the 2025 BMW M5 — NISSENS 207110.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | TE7331105J | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 220.0 F Degrees | View on Amazon |
| FOUR SEASONS | 85956 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Housing | View on Amazon |
| MOTORAD | 606221 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Housing, Sensor, Seal | View on Amazon |
| REIN | CTA0028 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
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.
4 Thermostat parts for the 2025 BMW M5 come from 4 brands — CALORSTAT, FOUR SEASONS, MOTORAD and 1 other brand.
This group includes CALORSTAT TE7331105J, FOUR SEASONS 85956 and MOTORAD 606221 and the remaining parts above.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 36226 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermostat Seal | View on Amazon |
| MAHLE / CLEVITE | C32504 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Molded Rubber | View on Amazon |
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.
2 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 2025 BMW M5, from FEL-PRO and MAHLE / CLEVITE.
This group includes FEL-PRO 36226 and MAHLE / CLEVITE C32504.
Buying Cooling System Parts for a 2025 BMW M5
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 4.4L V8 ELECTRIC/GAS Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant Reservoir Cap and Thermostat .
Frequently Asked Questions
How many cooling system parts fit the 2025 BMW M5?
Our catalog currently lists 15 cooling system parts for the 2025 BMW M5 across 6 subcategories and 8 brands, covering the 4.4L V8 ELECTRIC/GAS Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2025 BMW M5?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2025 BMW M5 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2025 BMW M5?
Every part on this page is matched to the 4.4L V8 ELECTRIC/GAS Turbocharged engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2025 BMW M5
Cooling System Parts for Other BMW M5 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.