Citroen Saxo 1.1 loses a few drops of oil

Hello, bad news Pa mi, I have taken my saxo to the workshop, and they have told me that he has a nose breakdown. We are going to cost me more than car. They say the oil is mixed with the refrigerant and they have to disassemble half a car. If it is true that I looked at the snack and has a color like coffee, instead of having it pink or green, what do you think I can do?
Thank you

In your case, two things can be a cylinder head that is being worked on or the oil heat exchanger that is broken, which only requires to bridge two hoses or change the feet.

And how can I know s is cylinder head or exchanger? Because I imagine that the fault is not the same in terms of repair price. Is there any way to know? Because I have looked at the oil plug and is normal, the oil needle has not dropped. Could it not be that I have not fallen for a long time, the refrigerant has fallen? or do they have mixed with water or gold type of refrigerant?

Look at the only way of Saver is to take out the refrigerant and perform the bridge in the hoses of the heat exchanger, and put the clean water again, and trying a while if the water is emulse again, in addition the vehicle if it is packaging tends to heat up, and with respect to your other question although you mix 7 different waters or tefrigerants does not produce that chemical effect.