I purchased the front and rear Vaico bearing kit on my 2006 MK4 Golf TDI. I installed all bearings in May 2022 per OEM torque/ procedure. All bearings are healthy after 3600 miles except the passenger rear which is failing. A call to customer service gave me the option of a no-cost warranted replacement of the same or a step up to a F.A.G. bearing assembly for a discounted price. I took the offer of a better bearing and will every time I need one in light of how much work they are to replace. A four star rating for the good service, but having to replace a substandard bearing at only 3600mi. I guess people like having a lower cost option, but a lack of product reliability in my case took one star away.