maf

Recently had the MAF sensor replaced. Recently had an EGR error that was reset a few weeks ago and not come on again since. Still getting some lights on the dash. These are my codes. Looks like a need a new glow plug?

I’ve got a P190D engine error code. So probably a dirty MAF sensor. Is it an easy job to give it a clean myself with some MAF cleaner then reset the code with my OBD reader?