A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
Power Steering Motor: All Technical Service Bulletins
Steering - Steering Column Noise When Turning
48 Dynamic steering (1N7) steering column motor noise
48 10 10
2020342/2
September 28, 2010.
Supersedes Technical Service Bulletin Group 48 number 09-05 dated June 4, 2009 for reasons listed below.
AFFECTED VEHICLES
CONDITION
Customers with dynamic steering (1N7) may complain of a rubbing, whirring or motor-type noise from the steering column while turning.
TECHNICAL BACKGROUND
Particles found in the harmonic drive. A new cleaning process to eliminate particles has been introduced.
PRODUCTION SOLUTION
New cleaning process to eliminate particles.
SERVICE
1. Remove lower steering column trim.
2. Disconnect the dynamic steering column motor connector.
3. Retest for noise.
^ If the noise is gone, replace the steering column.
^ If noise is still present, continue diagnosis and submit a Technical Assistance Center ticket.