Thinking the euro model may not have the pump. How about getting one off a junker if it does not and installing it. Or it might have one that is not working but think not. Make sure the auxillary pump still works as it is electrical prior to installation. It's purpose is to increase the flow through the rad core on north american versions and you could wire in a switch. Plus perhaps your heater on valve is getting a little tired. Others with more experience may help by commenting on the valve. I do not know if partial failure is possible or not. I would try the booster pump though as it should be easy and might help. Yet i do not think the 240ds in north american version have the pump either but could be wrong. Heat seems to be adaquate but on occasion some people post they are not getting enough.