A drain valve was not fitted at the rear on Audi A7 vehicles manufactured within a specific period. This Update is in effect until removed. Procedure is valid only for vehicles that show the 53B6 code in the ElsaWeb Campaign/Action Information screen on the day of repair. Vehicle must be within the New Vehicle Limited Warranty. Procedure must be performed within the allotted time frame stated in this Technical Service Bulletin. Procedure must be performed on applicable vehicles in dealer inventory prior to sale. A drain valve was not fitted at the rear on Audi A7 vehicles manufactured within a specific period.
