Does sound like a Garage to posssibly avoid ..
putting stuff in to help ?
And Don't leap to the Rover...Headgasket diagnosis from them either ..
Although the 130 degrees is not good there are many other places where water can be lost from on the V6 .
Did you get that temp from the on board IPK ?
Get a proper check and Diag from a More knowledgeable person before Scrapping your car
.
So many have been lost due to improper info/diagnosis from "Experts" and dodgy garages
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