Buy 1999 Audi A4 1.8L A/T Quattro Window Regulator. A4; Right. S4, RS4; Right. Window Regulator - - OEM Audi Part # 8D0839462 (8D0-839-462)

Regulator.
A mechanical assembly that moves the window up and down. It can be controlled by a motor or manual crank. Power Operated. Drive Unit. Liftgate Window. Manual. Module. Power. Sliding Window. Tailgate Window.

Window Regulator

Fits A4, S4

A4; Right. S4, RS4; Right.
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. Consider replacing the window regulator on your 1999 Audi A4.