Genuine Audi A6 Power Steering Pump

Audi A6 Power Steering Pump Parts and Q&A

• Power Steering Pump
  4B0-145-156-R
  Q: How to remove and install the Power Steering Pump and associated components in the 2.8 liter engine on Audi A6?

  A:

  Unclip the upper engine cover and remove it. Remove the bolts for the air filter duct housing at the front of the lock carrier and lift the air duct out. Disconnect the 5-pin connector from the ignition coils, then disconnect the three rear connectors from the ignition coils. Remove the four mounting bolts and swing the ignition coil bracket toward the rear. Counterhold the pulley for the viscous fan using a VAG 3212 spanner and remove the viscous fan with a VAG 3312 open-end spanner, lifting it up and out. Remove the electric fan by first removing the bolt, releasing the electric fan harness clips on the viscous fan air guide, and rotating the electric fan slightly to place it aside to the right. Before removing the engine accessory belt, mark the direction of rotation with chalk or a felt-tip marker. Turn the belt tensioner to the right using a long torque wrench and a 17 mm socket insert, securing it when both bores align. Remove the accessory belt from the belt pulley and unbolt the belt pulley for the power steering pump, counterholding it with a VAG 3212 spanner. Pinch off the intake line and return line using 3094 hose clamps, remove the expansion hose bracket bolts on the cylinder head, open the clamp and remove the fluid supply hose, and unbolt the expansion hose. Be prepared to catch dripping fluid. Unbolt the power steering pump bracket and remove the pump together with the bracket, then unbolt the power steering pump from the bracket. When installing, fill the intake side with hydraulic fluid and turn the pump by hand until fluid comes out the pump side, cleaning any spilled fluid in the engine compartment. Install the pump with the bracket, first tightening the front two bolts and then the rear two bolts to 22 Nm. Install new seals on the banjo fitting, tighten the banjo fitting for the expansion hose, bolt the line for the expansion hose to the cylinder head and tighten it, and install the intake hose with the marking facing toward the pump. Remove the hose clamps and tighten the Allen bolts for the power steering pump belt pulley. First, install the ribbed belt onto the crankshaft pulley and idler wheel, pushing the belt onto the tensioning roller last. Note the previously marked direction of rotation of the belt and ensure it is seated correctly on the pulley. Remove the drift, first install the electric fan and then the viscous fan, fill and bleed the steering system, and check the steering system for leaks.