This bulletin applies to 2013-2014 Audi A4, A5, A5 Cabriolet, A6, Q5 and TT vehicles equipped with a 2.0L engine. The MIL may be on, and reduction of power may be experienced.
This bulletin applies to 2013-2014 Audi A4, A5, A5 Cabriolet, A6, Q5 and TT vehicles equipped with a 2.0L engine. The MIL may be on, and reduction of power may be experienced and DTC P029900 (turbo/super charger underboost) may be stored in the ECM. The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall off due to low clip tension. An improved replacement clip is available that provides higher tension.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
