all engines built before march 2002 can be affected, so 52 plate vehicles [sept 2002] onwards should be ok
or engine number 11064500 onwards have the newer chain kit
the new chain kit costs £95 + a few gaskets etc, this can be fitted DIY, not much harder than a cam belt to change
or z22se member Benny [vx mechanic] will supply and fit for around £250.......he is our official 'Cam Chain King' :lol: