Graeme
17th July 2022, 08:24 PM
RKB500240 is the LR part number for the rear air-spring for MY07+ 3.6 TDV8 (not the MY07-09 petrol 4.4/4.2) and MY10-12 all engines. Note that the shocks for MY07+ 3.6 TDV8 have different part numbers to those on the 4.4/4.2.
Last August I fitted the Bilstein versions to my MY12 TDV8 and both have burst in the last 10 days while travelling slowly at off-road height with the vehicle unladen. I suspect that the later air-springs must be longer than the earlier versions and that Bilstein may not have properly allowed for the extra travel at off-road height particularly as the suspension articulates and that mine had become weakened by my recent increased use of off-road height to get through the deep mud on my lane. The failure point of both air-springs appears to be where the rubber is inside at normal height but on the outside at off-road height where a patch of rubber has pulled off the underneath layer then the whole length instantly split.
Last August I fitted the Bilstein versions to my MY12 TDV8 and both have burst in the last 10 days while travelling slowly at off-road height with the vehicle unladen. I suspect that the later air-springs must be longer than the earlier versions and that Bilstein may not have properly allowed for the extra travel at off-road height particularly as the suspension articulates and that mine had become weakened by my recent increased use of off-road height to get through the deep mud on my lane. The failure point of both air-springs appears to be where the rubber is inside at normal height but on the outside at off-road height where a patch of rubber has pulled off the underneath layer then the whole length instantly split.