Hi Neil, Sorry to hear about your troubles. Never experienced brake judder with my XF-S, though the bumpy ride is a rather well-known XF 'feature'. As you'll see from my posts elsewhere on this forum, I solved this ride problem by getting Spires to fit their 'Comfort' suspension to my car. No adverse effect on the excellent handling, but the ride is now as I think it should have been in the first place. As other members have noted, tyres can be critical. What wheel size are you running? - I believe that anything larger than 18 inch is likely to transmit excessive shock and vibration into the car. Best wishes, Martin