ford escape 2015 coolant problem
I am living in Saudi Arabia. I have ford escap2 2.5l 2015 model. it is almost 233xxx km (almost 144xxx miles) driven. upto now its coolant is not changed. I want to change its coolant, purchased from ford company, they gave me yellow coolant. went to mechanic, he tried to open radiator drain plug, it is not coming out, he tried to remove pipe from radiator, it was also not removing. he told me if he try hard maybe radiator will break. my coolant is in good condition no need to change. I went to other mechanic, before try to flush, he told me that in this model there is problem of thermostate valve, if he will change coolant, valve will have problem and car will start to heat up. he also advised to not change coolant.
please advise me, what to do?



