How to Replace a Water Pump in an Audi A4 2 8

1. Unfasten the negative battery cable from the battery post on your Audi A4 2.8 litre engine with an open end wrench. Move the cable out of the way so that it does not touch any other metal parts.
2. Take the cap off of the radiator and also off the coolant overflow tank. Place a drain pan underneath the drain plug at the bottom of your radiator.
3. Open the drain plug with an open end wrench and allow the coolant to drain out completely. Once it has finished, close the drain plug.
4. Locate the radiator hose that runs from the radiator to the top of the water pump and remove the hose from the water pump using a screwdriver to unfasten the screw clamp.
5. Unhook the electrical fan wire connector from the plug in connectors that go to the battery and use an open end wrench to disconnect the fan blade assembly from the front of the water pump. Use a socket wrench to unfasten the fan blade pulley from the engine block and remove the fan belt.
6. Disconnect the bolts that are securing the water pump to the engine block and use a screwdriver to pry the water pump away from the engine.
7. Use a putty knife to remove any remaining gasket material or debris from the face of the engine block where the water pump was mounted.
8. Spread a thin layer of gasket seal over the face of the new Audi A4 2.8 water pump and then lay the cardboard gasket material that came with your new pump over the face of the water pump.
9. Position your water pump over the engine block and attach it with the bolts that you removed from the old pump.
10. Place the fan belt around the pulley and reattach it to the engine block by pulling back on the pulley to tighten the belt while you secure the pulley with a bolt to the pulley bracket. Reattach the fan blade assembly to the front of the water pump with bolts.
11. Attach the radiator hose to the top of the new water pump with a screw clamp and plug the electrical connector for the radiator fan back into the electrical wiring plug.
12. Fill the coolant overflow tank about 1/2 full of coolant and place the cap back on the tank. Refill the radiator tank with coolant and water until it reaches the full level and then place the cap on the radiator tank. Reattach the negative battery cable back on the battery post with an open end wrench.
13. Remove the drain pan from underneath the radiator and set it aside. Start the engine to allow the coolant to cycle through the new water pump. Verify that there are no leaks around the new pump. When you are satisfied with the work, turn the engine off and dispose of the drained coolant at your local recycling center or automotive supply center.