I have had my 2015 Evoque for about 9 months and the coolant is just below the low line. The low coolant light hasn't come on though. However I purchased the Texaco/Havoline Xtended Life Coolant (XLC) and added some coolant to the tank. I have had many different cars in my 47 years and some have had a standard radiator cap and others have had a degas bottle which has a pressurized reservoir tank (which is similar or exactly the same as what the Evoque has). But I have NEVER had a cap that was as hard to get off as this. It is threaded and all the way off it is very difficult to turn and I have to use both hands and turn maybe 1/8th of a turn at a time. I haven't seen this mentioned elsewhere so it makes me think something is wrong with my cap. Thanks.