Buy Audi A4 Power Steering Hose O-Ring (Upper, Lower). 2008-12, 2.0 LITER, to pump, w/w/dynamic LITER, Line, Pressure - OEM Audi Part # 7M0422999 (1H0422999, 7M0-422-999)

Ring. Line. Pressure. Return. Seal.
Power SteeRing Hose O-Ring. Power Stee Hose O -. Included with: Lower Return Line, Pressure Hose, Pressure Line, Return Hose, Return Line, Upper Pressure Line.

Power Steering Hose O-Ring

Fits A4 (2009 - 2009)

2008-12, 2.0 LITER, to pump, w/w/dynamic steering. 2008-12, 3.2 LITER, to pump, w/dynamic steering. 2008-12, 4.2 LITER. 2010-12, 2.0 LITER, to pump, w/dynamic steering. 2010-12, 3.0 LITER, to pump, w/dynamic steering. 2010-2012, upper, w/dynamic steering. 3.0 LITER. 3.0 LITER, DIESEL. 3.0 LITER, GAS. 3.2 LITER, upper, w/dynamic steering. 3.6 LITER.
Power Steering Line - Repair or Replace
If the steering in your Audi A4 whines or groans, or if your steering wheel is hard to turn, you may have a leaking power steering line.