S630 2012 over heating

[More86]

I have a s630 over heating under normal load within 20 min and when running hydraulic attachments in les then 10 min I have changed and flushed the coolant still no change wondering weather it’s the water pump or thermostat is there anyway to test the water pump before taking it apart or any ideas ow what could be causing this issue

 

[foton]

do the thermostat first if the water pump is not leaking from the weep hole.

 

[flyerdan]

do the thermostat first if the water pump is not leaking from the weep hole.

Have you cleaned the radiators as the operator manual states? The engine radiator draws air through the hydraulic radiator first, so if there is a crud buildup it could be drawing in hotter air without enough flow to dissipate the heat of both.