reason why coolant level low warning was coming on my 2009 jaguar XF I Took the vehicle in for service for a hose leak they replace the hose but apparently put the wrong radiator fluid in it or mixed water with the original. they sold me a sensor for $34 but it didn't fix the problem. next they wanted me to pay 219 for the new reservoir, but it did not make sense it was working before I took it in I asked about the coolant being different and their response was no way it's the same so this is a test that I did
