【OEM Numbers】 63117180050 , 4L0907391 , 3D0907391B , 63 11 7 180 050 , 63 12 6 938 561 , 7180050 , 6 938 561 , 6224L8 , 89034934 , 30784923 , 7701208945 , 6224F9 , 13128287 . 【Compatible with 1】MiTo (955) 09.2008 - ...; 013 ；E87 02.2003 - 01.2013；C4 Coupe 11.2004 - 07.2011；C4 I Hatchback 11.2004 - 07.2011；C5 III Saloon 02.2008 - ...；C5 III Estate (RW) 02.2008 - ...；C4 I Saloon 07.2006 - ...；C4 II Hatchback 11.2009 - ...；DS4 Hatchback 04.2011 - 07.2015；DS5 Hatchback 11.2011 - 07.2015；C4 II Box Body / Hatchback (NC_) 11.2009 - ...； 【Compat bel with 2】 Vectra C Sedan (Z02) 04.2002 - 01.2009; CC (Z02) 08.2002 - 01.2009; (Z03) 05.2003 - 12.2008; (Z02) 10.2003 - 01.2009；3008 I (0U_) 06.2009 - 12.2017；5008 I (0U_, 0E_) 06.2009 - 03.2017；508 I (8D_) Saloon 11.2010 - 12.2018；50 8 I SW (8E_) 11.2010 - 12.2018；(5P1) 03.2004 - ...；(5P2) 04.2004 - 05.2009；(1P1) 05.2005 - 12.2012；(5P5, 5P8) 10.2006 - ...；(6Y5, 6P1) 2008 - 2017； (6Y, 6P) 2008 - 2018；(3R2) 2008 - ...；(3R5) 05.2009 - ...；(6Y8, 6P8) 2010 - 2016; 【Compatible with 3】V70 II (SW, 285) 11.1999 - 12.2008；S60 I (P24, 384) 07.2000 - 04.2010；XC90 I (C, 275) 06.2002 - 12.2014；XC60 I (156) 05.2008 - ...；Phaeton (3D1, 3D2, 3D3, 3D4, 3D6, 3D7, 3D8, 3D9) 04.2002 - 03.2016；B6 Saloon (3C2) 03.2005 - 11.2010；B6 Variant (3C5) 08.2005 - 10.2011；(1F7, 1F8) 03.2006 - 08.2015；Scirocco III (137, 138) 05.2008 - 11.2017. 【Function】The ballast is usually installed on the back or bottom of the headlight and is an important part of the fluorescent lamp or HID bulb. It controls the current that flows through the bulb, which keeps the light on and helps turn the light on.