I=41:13=3,15 Final drive (front axle) Teilegruppe Front axle, front suspension Spring strut, add-on parts BMW Genuine Part 31 50 7 504 533 Product 31-50-7-504-533 Manufacturer number 7 504 533 supply number 7-504-533 installation location: Front Axle Front Suspension/ Spring Strut Add-On Parts