Just acquired a RRS 07 which seems to have a knocking noise underneath when travelling on an uneven road. No noise on the flat. Any ideas? The car is still under warranty so keen to get it sorted but thought I would ask first in case it's a common problem before taking in to the garage and being 'fobbed off'.

As it's a TDv8 you have then 99% certain it's the front suspension bushes..................... thousands and thousands of posts on here about it! There isn't a LR fix for it, you'll have to really pressure your dealer to fit a replacement set under the used car warranty - they won't like it but it's a case of replacement bushes I'm afraid 2020 Pangea Green 1st Edition D240 New Defender 110 is here and loving it
2018 Melting Silver Mini Countryman PHEV - soon to be replaced
2015MY Corris Grey SDv6 HSE Dynamic, the best car I have ever owned, totally reliable only a cou0le of rattles in 3 years, now no longer in my care
Also in my garage is a 1996 TDi300 Defender 90 County HT made into a fake CSW

Any thoughts on Polybushes. 2006 S/C Bonatti Grey, OEM Steps, LAND ROVFR Mud Flaps, Soft/Smooth steering wheel, 2010/11 HST Wheels.