Have Mercedes Questions? Ask a Mechanic for Answers ASAP
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.If I am understanding your post correctly it sounds like you have an overheating concern. Since you have changed the radiator and thermostat already then the next steps would be to make sure there is no trapped air in the system and then perform a block test which will check for any signs of hydro-carbons in the cooling system due to a leaking head gasket. Check this and post back with the results and we can work from there.