How to Remove 2004 Audi Radiator

Written by russell wood
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The radiator in a 2004 Audi circulates coolant through its core, keeping it cool and ensuring that the engine doesn't overheat. Because the radiator uses water, as well as coolant, it can rot out internally and crack. It can also get damaged from an accident. To fix or replace the radiator, you need to first remove it. In this case, the project vehicle is a 2004 Audi A6, but the process is similar for other vehicles, as well.

Skill level:
Moderately Easy

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Things you need

  • Drain pan
  • Flathead screwdriver
  • Line wrench set
  • 3/8-inch ratchet and socket set

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Instructions

  1. 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. 2

    Unscrew the hose clamps on the upper and lower radiator hoses with the flathead screwdriver. Pull the hoses off the radiator, by hand, and point them towards the drain pan.

  3. 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. 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.

Tips and warnings

  • Never work on a hot cooling system in your Audi. The coolant is pressurised and heated to over 93.3 degrees C, and serious burns and injuries could occur.

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