Freelander 1, pre facelift, one of the last ones (2003)

Slow to start in the morning without holding down the accelerator. So far I've changed the fuel filter, glow plugs and had a mechanic clean out the air intake and given her a new filter.

Won't start without pumping and holding down the accelerator while turning engine on.

Next plan is to change the camshaft sensor and see if that fixes the problem. But posting here while I wait for parts to see if anyone has any ideas in the meantime, or if the senor fixes it then it might help someone else out.

Looks from your other posts to be a TD4? You shouldn’t need to touch the accelerator to start it.
Could well be the camshaft sensor, they can cause starting issues, especially when the engine is warm.
Could be slow fuel delivery on the LP side?

Have you checked for codes.

Good points, no codes that the tech showed me, I don't have a scanner myself. The mechanic showed me holding down the accelerator starts it, otherwise it just cranks endlessly. Its a strange one for sure.

What do you mean by fuel delivery on the LP side?

Change the High pressure fuel pump regulator O-rings and i bet it starts ok then, another test is leak back on the injectors, but that does not really stop it from starting, and Freddie's correct you should not have to use the accelerator to start the car, what fuel pump does it have in the rear wheel arch pierburg or some after market pump.

https://www.ebay.co.uk/itm/334882435145