Description
Product overview
The CSF 7071 is the Audi B5 S4 High-Performance All-Aluminum Radiator.
The radiator transfers heat from circulating engine coolant to the air passing through its core. Tube and fin condition, fan operation, and the airflow path all affect the cooling system’s ability to reject heat.
Technical features
- 2-Row 42mm Core (Dual Core) with B-Tube cooling tubes
- Fin design: 6.5mm Fin Height and Multi-Louvered Design
- CNC Machined "Quick-Connect" Inlet/Outlet Connections
- CNC Machined Brackets and Fittings
- All-Aluminum Race Style Drain Plug
- Smooth Satin Finish
- "Drop-in Fit" Requiring No Modifications to Install - Accepts All Attaching OEM Components Including "Quick Connect" Hoses, AC Condenser, Mounting Brackets and Fan Shroud
Installation and compatibility
Match the engine, transmission, and chassis application shown below. Check hose routing, fan and shroud clearance, and the condition of the rest of the cooling system during installation. Fill and bleed using the procedure specified for the vehicle.
- Please note this radiator only replaces the OE 8D0-121-251-AP for Manual Transmission B5 S4 models. Some Manual Transmission models use the OE 8D0-121-251-BD which has a built in Transmission Oil Cooler. If your B5 S4 MT has a transmission oil cooler this radiator will not work as a drop-in fit replacement. You would need to run an external transmission oil cooler or delete your manual transmission oil cooler for it to work correctly.
- Audi 8D0-121-251-AP (CSF #7071 Replaces this radiator)
- Audi 8D0-121-251-BD
Vehicle fitment
| Year Range | Make | Chassis Code | Model | Trim | Engine / Trans / Etc | Notes |
|---|---|---|---|---|---|---|
| 2000-2002 | Audi | B5 | S4 | - | Turbocharged 2.7L V6 (Manual) | See Fitment Notes |
Part number: CSF 7071.