One result for your BMW X4 M40d 2020
3.0 D 326 245/45 R 20 103W - 275/40 R 20 106W You can mount non-OE marked tyres on your vehicle, but you should change all 4 tyres at the same time
All 4 tyres should be changed at the same time on 4x4 vehicles
Your vehicle accepts Runflat Technology
