2008 Lincoln mkx coolant reservoir overflowed, engine overheated

SOURCE: Overheating and change engine oil ... oil was changed one week ?

it seems like the radiator of your car needs attention. check for coolant level in it, when its cold. if les add some coolant and then see if the problem persists.
--than there are chances of chocking in the coolant pipes, may be they not reached to engine..  
--Check the chock,, that it is not turned on. 
--May be sum loosing nut in engine.

SOURCE: engine overheating there is no coolant leak but it overheats and

1st it is imperative that that cooloant mixture is correct. once you have the correct mixture have the thermostat replaced. Or just have a mechanic replace the thermostst and they will balance the coolant to water mixrure

eric

SOURCE: 1991 Lincoln Town car overheating

The year of the vehicle, rusty liquid, and overheating, says your radiator could use a replacement. If it was your water pump, you would have liquid coming out of the water pump itself.

SOURCE: lincoln MKX heated seats

Take it to your dealer its under warrantie

SOURCE: 2003 Lincoln LS V8 3.9.

I dont think the coolant is boiling, I think you have an air bubble in your system wich is causing a air lock and youll need it flushed out. Your reservior cap should be tight always.. never loose this is an air tight system and your allowing it to get air in it. I have a 2002 linc ls and just had to pay 1000.00 to replace the system because I let an air lock go for too long and had so much back pressure I blew up my reservior.

Testimonial: "Thanks a lot. I've changed the coolant reservoir and reservoir cap. now it seems everything is ok with my car. so, your advise was really helpful."