My Jag is due a minor service very soon. I have lots of parts, including a Bosch fuel filter....but I've never changed one before. I've found some useful guides here and elsewhere but there are some scare stories about fuel spraying out everywhere as soon as the pipes are removed. Some say just unclip and replace, some say release pressure from the fuel lines etc etc. What's the truth?!   

Any help welcome, thanks in advance.

I recently changed my diesel S type fuel filter, the only problem I had was priming it afterwards.( The car was cranked about three times before it ran ok) I later found out take the exit pipe off, then put a length of pipe on the filter and bleed,by turning the ignition on,into a jar or old milk container, easier with help than on your own depending on the length of pipe used.

on my x type diesel 2.0d, i place rags around the metal body of the filter, then depress the button each side and pull off !  some my have a clip which you do by prising out. the filter body may be also held in by a spring clip to which you slide back and then lift up the filter. again making sure you have a rag at hand just in case of any diesel. when fitting the new one make sure all clips are pushed back into place and secure. there may be a little air in the system but keep starting with short bursts until it starts and runs properly.  job done....