I have been looking at an early 09 TDV8 (08 build) that is for sale to add to my garage; full history (main dealer & specialist), good condition and completely rust free etc.. But, looking at the paperwork, the suspension was completely replaced with Aerosus kit late last year, the Aerosus part numbers indicate that this was not meant for the TDV8 (I only know this because I was looking at Aerosus to replace the suspension on my 08 TDV8).

The car is really good but I am worried that it will cause problems due to incorrect spring/shock ratings, can anyone provide some advice or experience if they have used the Aerosus kit on a TDV8 please?

Without knowing whether Aerosus are firmer of softer than LR original shocks, the worst that you could be up for is to replace the rear shocks with LR versions if you found the suspension too firm or soft. At least the vehicle has new air-springs and shocks recently which has to be an improvement over the condition of the originals at its age.