Buy OEM Audi Part # 8E0121331D (8E0-121-331-D). Radiator Air Seal. 4.2 LITER, MAIN. 4.2 LITER, MAIN, A4/S4. Radiator - Repair or Replace Typical symptoms for a failed radiator include

Radiator Air Seal. Side Seal.
Seal used on the Radiator.

Radiator Air Seal

Fits RS4, S4

4.2 LITER, MAIN. 4.2 LITER, MAIN, A4/S4.
Radiator - Repair or Replace
Typical symptoms for a failed radiator include both an overheating engine and a coolant leak. But some radiator failures can also result in burned or dark transmission fluid. If the cooling system in your Audi needs attention, contact a factory-trained Audi technician.