The 2025 Audi Q4 has 12 cooling system parts with verified fitment on this page — 5 part types and 8 brands, covering the ELECTRIC engine. Each part includes a manufacturer part number and application notes.
The cooling system system on the 2025 Audi Q4 keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. The largest groups are Coolant / Antifreeze (3 parts), Coolant Reservoir Cap (3 parts) and Radiator (2 parts). The other 2 part types cover the remaining 4 parts.
The 2025 Audi Q4 came with a single engine, the ELECTRIC, and every part is verified against it.
8 brands supply cooling system parts for the 2025 Audi Q4, led by REIN (3 parts), PRESTONE (2 parts) and NISSENS (2 parts), plus 5 more brands. Quality grades include Heavy Duty and Standard Replacement.
Each part number listed for the 2025 Audi Q4 opens a page with every vehicle that part fits.
Coolant / Antifreeze
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AFC12100 | 🇺🇸 US 🇨🇦 CA | Command Nitrite Free Extended Life CoolantYellow Nitrite Free OAT | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE | 904683 | 🇺🇸 US 🇨🇦 CA | HT-12 Pink1 Gallon | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | 78065 | 🇺🇸 US 🇨🇦 CA | Heavy Duty | 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.
3 Coolant / Antifreeze parts are listed for the 2025 Audi Q4, from PRESTONE and VALVOLINE.
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 904683 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Part numbers include PRESTONE AFC12100, VALVOLINE 904683 and PRESTONE 78065.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0162 | 🇺🇸 US 🇨🇦 CA | Maximum Pressure Rating: 23.0 PS | View on Amazon |
| MOTORAD | T93 | 🇺🇸 US 🇨🇦 CA | Standard | View on Amazon |
| REIN | CPE0039 | 🇺🇸 US 🇨🇦 CA | 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.
3 Coolant Reservoir Cap parts for the 2025 Audi Q4 come from 3 brands — CALORSTAT, MOTORAD and REIN.
Listed part numbers: CALORSTAT RC0162, MOTORAD T93 and REIN CPE0039.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KOYORAD | A13980 | 🇺🇸 US 🇨🇦 CA | Premium or Prestige | View on Amazon |
| NISSENS | 606780 | 🇺🇸 US | Fits Q4 e-tron Sportbackor Premium PlusEngine Code Edfaor Premium | 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 Audi Q4, from KOYORAD and NISSENS.
Listed part numbers: KOYORAD A13980 and NISSENS 606780.
Radiator Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | AVM0748 | 🇺🇸 US 🇨🇦 CA | Left Lower | View on Amazon |
| REIN | AVM0749 | 🇺🇸 US 🇨🇦 CA | Right Lower | View on Amazon |
This table covers the Radiator mounts. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
2 Radiator Mount parts for the 2025 Audi Q4 come from REIN.
This group includes REIN AVM0748 and REIN AVM0749.
Temperature Sender / Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS | 207067 | 🇺🇸 US | Fits Q4 e-tron Base Model or Prestigeconnector Oval, install method: bolted connection | View on Amazon |
| WELLS | 5S15293 | 🇺🇸 US 🇨🇦 CA | Connector Gender: Female | 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.
2 Temperature Sender / Sensor parts are listed for the 2025 Audi Q4, from NISSENS and WELLS.
This group includes NISSENS 207067 and WELLS 5S15293.
Buying Cooling System Parts for a 2025 Audi Q4
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 ELECTRIC 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 / Antifreeze and Coolant Reservoir Cap .
Frequently Asked Questions
How many cooling system parts fit the 2025 Audi Q4?
Our catalog currently lists 12 cooling system parts for the 2025 Audi Q4 across 5 subcategories and 8 brands, covering the ELECTRIC engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2025 Audi Q4?
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 Audi Q4 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 Audi Q4?
Every part on this page is matched to the ELECTRIC 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 Audi Q4
Cooling System Parts for Other Audi Q4 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.