Yep definitely worth doing that if it’s not been doing already. Should have mentioned in my original post I’ve already installed a new expansion tank.TOMGREEN413 wrote: ↑Sat Feb 04, 2023 10:20 am I'm not sure if I missed something but I'm also planning to do mine next month, but in addition to the pump and complete thermostat housing l was going the replace the header tank as I believe they can split , besides they don't seem to difficult to fit and aren't that expensive.
Mine started leaking a week after I got the car, something I’d planned to do as preventative maintenance - but I was a little too slow to prevent anything!