Hello together, my Volvo has the problem with cooling water loss, CO2 test was positive – after that the ZKD was changed, one saw during the expansion also a notch in the seal. Juhu thought that was it, new seal pure and finished. Unfortunately no, during the test drive the water boiled again over and CO2 test positive. Now my workshop (free) meant that it is then the ZK itself. I am on the search for a head where lt. Volvo has the part number 36050523, that is the successor of 36010025, but there is only a new part for 3700 Euro. So much I have planned for a head incl. installation 🙁 After research I also come to the part number 3077365 or 31401468. Is then sold at Ebay for 1999,— Euro incl. 12 months warranty until 40tkm.Ebay Has someone an idea whether these heads fit? KFZ Leezen has only a revision in the offer for this, not in exchange. Does that work at all? I want to make it already, to change to the gear of 10, the gear – not completely – to the gear of the gear – has not to look.