Technical 2009 diesel sport wont start cold or hot

[marcinfife]

hi guys i have a 2009 diesel 500 with poor starting,from cold or hot it can wind all day untill battery goes flat.i have had many things replaced to rectify this but still the problem is here,if i bump start it or small spray off easy start it starts no problem and runs fine,so far ive had new battery,glowplugs,crank sensor,fuel rail pressure sensor,fuel pump,map sensor,egr valve,dpf regen.but what i have noticed is when car is cranking over it comes up CAN CHECK on radio display could this be part of the problem im having ?or a software update im at my wits end with it any help would be appreciated

 

[marcinfife]

also had new filters and pump in tanks working fine

 

[Texas149]

Can Check might just be due to the voltage dropping 'cause you are cranking over a diesel.
Poor starting can sometimes be due to the glow plugs, you say they have been replaced but have they been checked that they actually work ( flick test out of car ) and are you sure they are getting voltage in the car, might be glow plug relay/fuse problem.

Paul m.