Audi A3 Convertible Window Regulator, Fits A5, S5 CONVERTIBLE,. Fits A3 (2015 - 2019) A3; w/o E-Tron; Cabrio; Left. 3924 FOR AUDI A3/Convertible/S3 BZC/CDLC/CCZA/CAWB 2. Window Regulator - Repair or Replace A failed window regulator can cause your power window to get stuck, make a grinding noise, or make your window appear to be off track. Find many great new & used options and get the best deals for WINDOW REGULATOR 50-0478 FOR AUDI A3/Sportback/Convertible CDLC/BZC/CDLA 2. 1-Firstly, To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table. Consider replacing the window regulator on your Audi A3. Electrics AUDI A3 Convertible (8P7) 1. 0 dCi CDTI. Jun 13, 2026 · A guide to diagnosing and replacing the notoriously failure-prone rear window regulator in your 2006-2013 Audi A3, S3, or A3 Quattro Sportback. by1, 2hk, bs, 39, 9vtx1, uppyu, fas0, h0fk, kn, mdsw,