How to Remove 2004 Audi Radiator

1. Allow the engine to cool for at least several hours. Set the drain pan at the bottom of the car, underneath the radiator. Open the petcock located at the very bottom of the radiator and drain the coolant into the pan.
2. Unscrew the hose clamps on the upper and lower radiator hoses with the flat-head screwdriver. Pull the hoses off the radiator, by hand, and point them towards the drain pan.
3. Unplug the electrical connection to the fan mounted on the backside of the radiator. Unscrew the transmission cooler lines on the side of the radiator with a line wrench, if your Audi has an automatic transmission.
4. Unbolt the upper radiator retaining bolts from the core support with the 3/8-inch ratchet and socket. Tilt the radiator towards the engine. Lift it up and out of the engine compartment.