Trying to find out what removal tool I need to remove injectors 1.5 tdci cmax 2017 

Why do you need to remove them???

Normally, there are clamp bolts that need to be re-tightened to specific torque/rotation AND the dodgy leak off pipes that need real care and even with that, the teeny weeny green (?) clips can crack requiring replacement.
Depending on the design, this may help:
https://www.youtube.com/watch?v=cO8dG0mvfbY
Beyond that, if there has been leakage past the copper washers then the injector may be seized in place needing twisting and the hole then cleaning out (rotary wire brush)  AND the copper washer can stick at the bottom of the hole needing some tool to remove it:
https://www.youtube.com/watch?v=bIlSLT2sESc
There's a leak off test here:
https://www.youtube.com/watch?v=E89oncZcZgg
And they need to go back in the same place otherwise the calibration will be wrong.

 

13 hours ago, Shearers said:

Why do you need to remove them???

Normally, there are clamp bolts that need to be re-tightened to specific torque/rotation AND the dodgy leak off pipes that need real care and even with that, the teeny weeny green (?) clips can crack requiring replacement.
Depending on the design, this may help:
https://www.youtube.com/watch?v=cO8dG0mvfbY
Beyond that, if there has been leakage past the copper washers then the injector may be seized in place needing twisting and the hole then cleaning out (rotary wire brush)  AND the copper washer can stick at the bottom of the hole needing some tool to remove it:
https://www.youtube.com/watch?v=bIlSLT2sESc
There's a leak off test here:
https://www.youtube.com/watch?v=E89oncZcZgg
And they need to go back in the same place otherwise the calibration will be wrong.

 

Thanks I’m replacing the seals as I have two that are chuffing 

Perhaps, when you are that far down, consider recutting the seats (especially if it has been leaking for a while)?:
https://www.ebay.co.uk/itm/394338166238

or:

https://www.ebay.co.uk/itm/388650344025?

My main concern with this work is to avoid anything going into the cylinders so maybe constant vacuuming and/or grease to pick up swarf etc?:
At the very worst, it's this (and, on another he uses  a rotary wire brush):
https://www.youtube.com/watch?v=4P0UETsORvc&t=252s

I don't know the torque/rotation settings which are crucial? and depending on the design even within engines clamps can be different:

e.g. for 2012 C-Max 1.6 Duratorq (nearest I have but wrong)
Stage 1: 7 Nm
Stage 2: 85°
OR
Stage 1: 7 Nm
Stage 2: 80°

Need to find yours?
Best to be prepared?

Thanks for advice much appreciated