Once you have opened the bonnet its just a simple task of un popping the black plugs on the bonnet shield (carefully), gently pull off the little rubber hoses, then unplug the wires to the jets, then with reasonable force push the old jets out.(Do not throw them away!) As I found, the misters have a much shorter leads. This is not a problem, just cut the old wires off at both ends, then cut the new ones in the same way, leaving enough wire to join the new misters at both ends. The rest is not rocket science, but for those that are not that clever, putting it back is just a case of doing things in reverse. (That does not mean driving backwards. LOL!)