Related Products
Radiator - Audi (4K0-121-212-C)
2020-2025 Audi - 4K0-121-212-C
- MSRP: $256.66
- Discount: $60.31 (23.5% off)
- Sale Price: $196.35
- MSRP: $256.66
Review Fitment & Product Details
Details
- Brand:
- SKU:
4K0-121-212-C
- Positions: Right
- Other Names:
Radiator
- Description:
2.9L, auxiliary. Side. S6. Right. At wheelhouse. S7. This factory Audi Radiator (4K0-121-212-C) moves heat out of the engine and charge air circuits, and because modern Audi engines run tight thermal windows, a partial loss of cooling capacity shows up as performance and economy loss before it shows as overheating. Ordering genuine avoids the fit and durability compromises that come with aftermarket substitutes. Use the fitment guide or contact our parts team to confirm the correct application.
- Applications: 2.9L.
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Pricing is valid online only and may vary in your local store
Vehicle Fitment
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
Key Product Information
Additional Information
| SYMPTOMS | What to look for before replacing this radiator and cooler (4K0-121-212-C): rising coolant temperature, low coolant level warnings, sweet smelling steam, a heater that blows cold, or visible pink or clear residue on hoses and joints. Addressing the issue early usually keeps the repair contained to this component. |
| TROUBLESHOOTING | Before replacing 4K0-121-212-C, work through the following: pressure test the system cold to expose seeping joints, then verify thermostat opening behavior against live coolant temperature data before replacing pumps or radiators. Document the readings before and after the repair so the fix can be verified. |
| INSTALLATION | Fitting Audi part 4K0-121-212-C calls for a proper vacuum or bleed fill so no air pocket remains, since trapped air in these systems causes false overheating and heater performance complaints. Torque values differ by model and production date, so consult the factory literature. |
| MAINTENANCE | Ongoing maintenance where 4K0-121-212-C is fitted means using the correct Audi coolant specification, never mixing coolant types, and checking hose condition and clamp tension at each service. Service records also help establish warranty eligibility if a component fails early. |
| GENERAL_NOTES | Ordering note for 4K0-121-212-C: coolant color and specification vary by production era, and mixing incompatible types causes gelling that clogs the heater core and radiator. Aftermarket equivalents often differ in material and tolerance, which shows up during installation. |
| REPLACEMENTS | Related parts to order with 4K0-121-212-C: hose clamps, O-rings, thermostat housings, and coolant are renewed at the same time because access is shared and old seals rarely reseal. Replacing wear items together restores the assembly to its original condition. |
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