Servus Elch-elite Ivh got a V40 BJ.10/97 with approx. 220450km and that without a test. But I’ve had some foam in the engine oil for quite some time (see picture1) I put in mud flushing and then I drove well (caa.200km) – the oil incl. filter I wilted and it all right now, for about 4 months the same thing is again. I can’t change everything 5000-7000km the oil. Who knows about it? and who has experience me this? On the 2nd picture I only filled about 50 ml! I also looked, there is NO cooling water in the engine room. maybe one can thank me for what I can do against it.