Please make sure this is the correct part before buying. In this product page you can see a AUDI A6 4G S LINE C7 2013 2.0 TDI CGLC ECU ENGINE CONTROL UNIT KIT 03L906018LB that will fit a Audi A6 and any of the vehicles in the compatibility list. This vehicle part is a Used part, so please ensure it is the right one before buying.