This power steering pump was a pain. The first one I bought broke after a few days! The second one didn't fit properly in one of the screw holes. I had to use a long extension ratchet with a nut for the bolt to remove the old nut and put in a new one that didn't fit properly. Luckily I was able to remove the screw to attach the strut to the new pump. So far my Rp pump hasn't failed but it's definitely been a nightmare! I will never order Chinese goods for my bmw e46 again! I do not recommend it for BMW lovers! Only if you are on a budget and a lot of wasted time!