Hiya 'Sing' .. thanks for the switch info .. and the welcome .. your link sent me to flea-bay,and a different type of filter ... I just had the said filter(cylindrical type) replaced .its in the rear off side wheel arch (underside).I was allowed into the workshop (garage) while the fitter did the job.(so I picked his brain on as much as I could think about) .. not too hard up on a ramp and when you know where it is.Good job it only needs changing ..is it every 60,000 mile or so.