Mercedes Benz

Steering - Front End Knocking Noise on Turns SI M 32 02 05 Steering and Wheel Alignment June 2005 Technical Service This Service Information bulletin supersedes Service Measure M32 200 04 dated December 2002-2006. SUBJECT Power Steering Pump Noise MODEL R50 (Cooper) and R53 (Cooper S) manufactured before June 2002-2006. SITUATION Customer may hear a knocking noise from the front axle area when turning the steering wheel. CAUSE The power steering pump bracket is not properly mounted and makes contact with the power steering gear. CORRECTION Move the power steering pump bracket down as far as possible to increase the clearance between the bracket and the steering gear. PROCEDURE Do not replace the power steering gear or the electro-hydraulic power steering pump. 1. Loosen the two M8x12 hex bolts holding the power steering pump bracket. These bolts are accessible from the rear of the vehicle (under the power steering gear). 2. Move the power steering pump bracket down as far as possible...