200 - tap tap

Booked in for cambelt change with two techs at dartford next week.

realised that engine taps on idle when warm, saw some threads on this in 2012.

any updates and does anyone else have it ?
 
Not sure if the dephaser is known for going noisy on these like the 172/182..?
 
What type of noise is it?

Actually tappets tapping noise or like a rattle noise from the cam pulley area?
 
Not sure if u ever heard the old vauxhalls corsas etc when they get old? Nowhere near as loud but still a decent tapping noise / fast ticking noise