Hello dear community, I am unfortunately really at a loss with my Volvo lately and a self-search unfortunately does not really get me further. I have the 850 now for about 3 months and unfortunately do not really get to drive the car properly. There are permanently problems and defects. Some I can understand, others (and my workshop) bring me to despair. The following problems are involved. ABS/TRACS errors occur sporadically. These are the following error codes: 411, 412, 413, 414, 421, 422, 423, 444, 211, 213. Since the error occurred only a few days ago at minus degrees, I assume that this is also the general ABS error with the cold soldering points? I myself have never soldered and think it is more useful to send the ABS control unit directly in? And now to the second bigger problem. The 850 loses engine oil and indeed fresh and not very little. I start from 1L to 1000km. After the journey/during the journey the car loses more oil (i.e. Liqui Moly 10W60 inside). The following repairs were already completed by my workshop (a total of almost 800 euros), but without any improvement. – Oil pressure switch – Both oil cooler hoses in and out (these were really expensive. Almost 3 hours since these had to be removed. So tight and broken were those. But apparently you didn’t drip. Besides, the previous owner made the oil trap and I believe also the valve ckeldichtung (but not in a workshop). What else could be responsible for the oil loss? I thank you for every thought or tip! VG R4-V