1. Remove the cylinder head (Chapter 12), pallet (Chapter 16) and oil pump (Chapter 18).
2. Rotate the engine so that the No. 1 connecting rod journal is at BDC. Mark the position of the connecting rod and connecting rod cap relative to the cylinder with a puncher.
3. Turn off nuts, remove the bottom cover of the bearing of a rod.
4. Use a hammer handle to push the connecting rod and piston through the top of the cylinder. Place the bearing cap with the connecting rod. Keep all the details together.
5. Repeat the procedure given in points 2-4 inclusive, remove the remaining pistons and connecting rods.
6. Before disconnecting the pistons from the connecting rods, mark the orientation of the connecting rods, if necessary, marking the side facing the front end of the engine. The protrusion mark on the surface of the connecting rod and cap faces the front end of the engine.
7. Remove the circlips from the grooves in the piston pin holes (photo), push out the pin just enough to remove the connecting rod. Do not remove your finger completely unless you are installing a new one. If the finger is difficult to push out, heat the plunger in hot water.
8. New bushings can be installed in the connecting rods, but since they need to be expanded to the correct size after installation, this work is best left to an Audi agent.
9. Using old feeler gauges or pieces of plastic inserted behind the piston rings, carefully remove each ring from the piston. Fold the rings so that they keep the correct orientation so that the top ring can be identified. Carefully clean the rings and annular grooves on the pistons from carbon deposits using pieces of the piston ring.
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