My car doesn’t cool properly. It’s just solved with the Bosch service (injection nozzle problem). But at higher speeds the engine gets too hot. The type of Bosch service says he reads the engine temperature with his diagnosis device. What the diagnostic device indicates is also indicated on the temperature indicator inside in the scales. But if the engine temperature is already over 100 degrees, the cooler remains at about 70 degrees. Thermostat valve (new part) and water pump (used part) have i The Bosch type says that the additional electric pump in the cooling circuit makes funny noises and is probably broken. But I thought it is only important for the heating. Furthermore, the Bosch type means that the visco coupling already has play and should be replaced. When I replaced the water pump I removed the fan with coupling and checked the partial-is-caputt criteria as indicated in the Etzhold. Therefore, it should be fine. I need advice : Can the cooler be clogged? Can I then clean it? If so how and what? Should I rather replace the cooler? New part / used part? Where in the Lüneburg/Hamburg area do I get a part like this at short notice and with what costs do I have to reckon with? How much time do I have to plan for a possible. cooler replacement? What should I do with my viscoco clutch? Does one have a good tip for me how to get the cooling system floated again. I know many questions at once, but I want to e still with the car on Friday on vacation. And now time runs away. Uli