Quick Q: how to bleed radiator?
 

good morning gents, i just drained the old coolant (i can tell it's been there for a while!), added 50/50 mix, let the engine run for a bit, drain again, and then added 50/50 mix (OEM MB fluid).

I'm a bit nervous about the MB cooling system coz i do not see an extra reservoir. anyway, i have the heater set at max and i've let it reach operating temperature. how do i make sure all the trapped air is purged from the system? thanks !

take off the pressure cap (fitted on overflow coolant tank - on most mercedes) and let car idle for between five and ten minutes.