Car going in for brake discs. Was thinking should i get a new thermostat fitted as it is 2007. There is quite a few post on these failing on the xk's. Has anyone had a failure in the 4.2 xkr model. If so did you need more parts than the thermostat.

 

Yes, I had a thermostat failure. In the XKR you only need the thermostat and the the supercharger coolant fill plug washer, if you're being a stickler.

 

failure in the 4.2 is very uncommon, far more prevalent in the 5.0