Audi A8/S8 Master Window Switch / Button Front, Left 4E0959851C

The MASTER WINDOW SWITCH / BUTTON, OEM part number 4E0959851C, is a critical component located on the driver's side door of various Audi models, including the A8 and S8 from 2004 to 2010. This switch enables the operation of the vehicle’s windows, facilitating both manual and automatic functions, including the soft close feature for enhanced safety and convenience. Common issues such as non-responsive windows, intermittent function, or physical damage can necessitate replacement. This authentic, factory-original part directly interfaces with the vehicle’s electrical system, ensuring seamless coordination with window regulators and safety systems. Compatible with: - 2010 Audi A8 Quattro (4.2L V8 - Gas) - 2009 Audi A8 Quattro (4.2L V8 - Gas, 6.0L W12 - Gas) - 2009 Audi S8 (5.2L V10 - Gas) - 2008 Audi A8 Quattro (4.2L V8 - Gas, 6.0L W12 - Gas) - 2008 Audi S8 (5.2L V10 - Gas) - 2007 Audi A8 Quattro (4.2L V8 - Gas, 6.0L W12 - Gas) - 2007 Audi S8 (5.2L V10 - Gas) - 2006 Audi A8 Quattro (4.2L V8 - Gas, 6.0L W12 - Gas) - 2005 Audi A8 Quattro (4.2L V8 - Gas, 6.0L W12 - Gas) - 2004 Audi A8 Quattro (4.2L V8 - Gas) Alternative terminology includes "Driver's Window Switch" or simply "Window Switch." Additional compatible part numbers include 4E09621265PR, 8E0959565A4PK, and others. Replace your worn-out master window switch to restore the full functionality of your Audi's window system.