Power Window Switch Replacement needs attention as follows: 1.Turn off the power before replacement. 2. Align and plug in the switch in parallel to the socket to prevent deviation, pin deformation and poor contact. 3. Make sure that the plug is in place correctly. Power Window Switch For: Mercedes-Benz C230 2009-2012 4Matic Sedan 2.5L V6 GAS 2009-2011 Base Sedan 2.5L V6 GAS Mercedes-Benz C250 2012 Base Coupe, Base Sedan 1.8L l4 GAS 2012 Luxury Sedan,Sport Sedan 1.8L l4 GAS 2012 Sport Sedan 3.5L V6 GAS Mercedes-Benz C300 2009-2012 4Matic Sedan,Luxury Sedan,Sport Sedan 3.0L V6 GAS 2010 Classic Sedan 3.0L V6 GAS 2010-2011 Elegance Sedan 3.0L V6 GAS 2009 Luxury Sedan 3.0L V6 FLEX 2010-2011 Luxury Sedan 3.0L V6 GAS 2009-2011 Sport Sedan 3.0L V6 FLEX,GAS 2010-2011 Sport Sedan 3.5L V6 GAS Mercedes-Benz C350 2009-2012 4Matic Sedan 3.5L V6 GAS 2009-2010 Base Sedan 3.5L V6 GAS 2012 Base Sedan 3.5L V6 GAS 2012 Base Coupe 3.5L V6 GAS,FLEX 2009-2012 Sport Sedan 3.5L V6 GAS 2012 Sport Sedan 3.5L V6 FLEX Mercedes-Benz C63 AMG 2009-2011 Base Sedan 6.3L V8 GAS 2012 Base Coupe,Sedan,Series Coupe 6.3L V8 GAS Mercedes-Benz E350 2011-2012 4Matic Sedan,Wagon 3.5L V6 GAS 2012 4Matic Coupe 3.5L V6 GAS 2012 4Matic Sedan,Wagon 3.5L V6 FLEX 2011-2012 Base Convertible,Coupe,Sedan 3.5L V6 GAS 2012 Base Convertible,Sedan,Coupe 3.5L V6 FLEX 2011-2012 Bluetec Sedan 3.0L V6 DIESEL Mercedes-Benz E550 2011 4Matic Sedan 5.5L V8 GAS 2012 4Matic Sedan 4.7L V8 GAS 2011 Base Convertible 5.5L V8 GAS 2011 Base Coupe 5.5L V8 GAS 2011 Base Sedan 5.5L V8 GAS 2012 Base Convertible 4.7L V8 GAS 2012 Base Coupe 4.7L V8 GAS Mercedes-Benz E63 AMG 2011 Base Sedan 6.3L V8 GAS 2012 Base Sedan 5.5L V8 GAS 2012 Base Wagon 5.5L V8 GAS Mercedes-Benz GLK350 2010-2012 4Matic Sport Utility 3.5L V6 GAS 2010-2012 Base Sport Utility 3.5L V6 GAS OE Number: 2049055302