Moin, after some research I decided to have a gear flushing according to the Tim-Eckart method after approx. 90,000km. I found a workshop nearby that also offers this and received an offer. What bothers me a bit about it, they only use ATF from Fuchs (to be exact ATF Titan 6400 Fuchs). In the other threads always Ravenol is recommended – with the brand I can also do something, Fuchs I have never heard before. Haldex and Diff I wanted to let change right away, because they use the original oil from Volvo for the Haldex and FEBI/Billstein for the Diffs. So my question, can someone say what to Fuchs? This should not be a fundamental discussion, whether a flushing is now useful or not. Thank you!