Suspension fault
 

Hi there
I'm living in the bush of Zambia so I don't have a Land Rover Specialist around the corner. I'm experiencing suspension faults when the car is heavy loaded or when I hit a bumpy road and also when I drive off to quickly after starting the car. I already had replaced sensors and the compressor. Now somebody is telling me I have to replace the airbag (suspension) system. Bloody expensive in Zambia...for a set behind $3000,- But i'm not sure if this will solve the problem...people just want to make money...The compressor was also an expense and didn't solve the problem. Any advise is much appreciated.
Cheers
Peter