X5 3.0i Sport with LPG - servicing
 

I see there are a number of you guys out there with lpg systems installed. Any of you tried to service the lpg system yourselves? - Just a case of replacing the filter but I think the issue is getting hold of the filters.

I have a 3.0i Sport with a Prins VSI system installed - 75 litre doughnut tank in the spare wheel well.

Thanks in advance.