OVERVIEW
Renew the original upper radiator hose connection
1K0-122-291-BE is the Genuine VW/Audi coolant hose connector for the specified upper radiator hose connection. The molded elbow joins the hose to the radiator fitting, with a retaining clip that secures the quick-connect joint in its installed position.
Heat cycling and repeated service can damage the connector or its retaining features. A cracked housing or compromised sealing surface can allow coolant to escape even when the hose itself remains serviceable.
Technical details
- Complete factory number: 1K0-122-291-BE.
- Factory specification: factory upper radiator coolant hose adapter, revision BE.
- Design: molded elbow coupling with original quick-connect retaining clip, as pictured.
- Quantity supplied: one individual coolant hose connector.
This is the connector component, not a complete radiator hose or radiator. The factory catalog describes the adapter with its retaining and sealing components. Confirm the original hose assembly and connector interface before disassembly.
Common reasons to replace
- The connector body is cracked or damaged.
- Coolant leakage is traced to the connector's sealing joint.
- The retaining feature is damaged and no longer holds the joint securely.
- The original connector is damaged during radiator or hose replacement.
Check the radiator neck, hose, sealing surface and retaining groove before replacing the connector. A damaged radiator fitting or deteriorated hose requires its own repair. Diagnose the actual coolant leak location rather than replacing the adapter solely because fluid is visible nearby.
Vehicle fitment
Use this adapter only at the original upper radiator position specified below. Connector revisions and hose routing vary; confirm the complete BE suffix and original hose assembly.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Volkswagen Golf | 2015–2018 | 1.8L turbocharged gasoline inline-four | Mk7 hatchback; S; matching upper radiator connection | Upper radiator connector; verify original connector number and hose assembly. |
| Volkswagen GTI | 2015–2021 | 2.0L turbo gasoline | Mk7 / Mk7.5 | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Volkswagen Golf Alltrack | 2017–2019 | 1.8L turbo gasoline | 4MOTION | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Volkswagen Golf SportWagen | 2015–2018 | 1.8L turbo gasoline | FWD | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Volkswagen Golf R | 2015–2019 | 2.0L turbo gasoline | Mk7 / Mk7.5 4MOTION | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Volkswagen Jetta GLI | 2019–2025 | 2.0L turbo gasoline | GLI only | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Audi A3 | 2015–2016 | 2.0L turbo gasoline | 8V quattro sedan | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Audi A3 | 2017–2020 | 2.0L turbo gasoline | 8V FWD / quattro sedan | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Audi S3 | 2015–2020 | 2.0L turbo gasoline | 8V quattro sedan | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Audi TT | 2016–2023 | 2.0L turbo gasoline | 8S quattro Coupe / Roadster | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
| Audi TTS | 2016–2023 | 2.0L turbo gasoline | 8S quattro Coupe | Original upper radiator supply connection; match the complete BE connector number and hose assembly. |
Installation guidance
Allow the cooling system to cool and depressurize it according to the vehicle repair procedure. Capture drained coolant, release the retaining clip correctly and avoid levering against the radiator neck. Clean and inspect the mating fitting before installing the seal and connector.
Confirm the retaining clip is fully engaged, refill with the specified coolant and bleed the cooling system using the prescribed procedure. Carry out the specified pressure and leak checks before returning the vehicle to service.
Ordering information
One Genuine VW/Audi coolant hose connector. Hose, radiator and coolant are separate. Verify VIN, original connector number and upper hose configuration.