Buy OEM Audi Part # 4Z7121212 (4Z7-121-212). Radiator. 4.2 LITER, AUXILIARY. Radiator - Repair or Replace Typical symptoms for a failed radiator include both an overheating engine

Auxiliary Radiator.
Auxiliary. Radiator.

Radiator

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4.2 LITER, AUXILIARY.
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.