Original review: 20180831 2:50 PM I'm giving it a neutral 3 stars because the packaging doesn't list all the cars that fit the label. I can only assume it will fit the 335i but until I fit it I'm not sure. While the installation process is fairly straightforward, it would be nice to include some basic step-by-step instructions and perhaps a list of tools needed to complete the installation on a piece of paper. It's a pretty strong track and so far I'm happy with it. I will update the rating after installation.20180831, 19:12. It was a very easy replacement. I used a Leatherman, some toothpicks to scrape off the remains of an obsolete/inadequate OEM part, and a 10mm socket. I would advise anyone with an N54 to do this replacement as a preventive measure.