Compatible with A4 (2013–2015), A4 Avant (2013–2015), A4 Allroad (2010–2016), A5 (2012–2016), S5 (2012–2016), Q5 (2009–2017), A6 (2011–2018), A6 Avant (2011–2018), A6 Allroad (2013–2018), A6L C7 (2012–2018), A7 (2011–2018), A8 (2010–2017), S8 (2010–2017), RS4 (2013–2016), RS5 (2010–2016), RS6 (2013–2018), and RS7 (2014–2018).This part is a steering gear cover and tie rod cover.Part numbers: 4G0423831 and 4G0423832A. Important: This is an independent aftermarket part.Brand/model references serve only to show compatibility.