Servus, actually I was happy not to have to report with problems after a long time, but today it is again so far on the highway I noticed that something was wrong with the acceleration and then I opened up moderately to home and engine room. Immediately I noticed that from the cooler on the top left (if you are standing in front) white foam is coming out (see picture). Is after 310,000 km just the cooler over now or do I have to worry about causes? 1 week ago I noticed that the water tank licked down on the hose (dropwise). Temperature normal, footroom dry on both sides, no fog inside/windshield, oil change carried out 3 weeks ago, oil filler cap rope rod no foam/slam. As usual used with Scandix or alternative at bay, approx. cost for material and work? Thank you Coray