Review on PG Cabin Air Filter PC4329, Compatible with BMW 535i (2010-2016), 535i xDrive (2011-2016), 528i (2010-2016), 550i xDrive (2010-2016), 528i xDrive (2012-2016), 750Li (2009-2015), 750Li xDrive (2010-2015), 650i (2012-2018), M5 (2013-2016), and 528i (2011) by Treyshaun Clena

The filters were affordable and looked almost OEM. They work just as well. There really isn't anything negative about the product itself. The problem is installing them on my 2016 BMW 528i. It was painful to bother (literally) to unscrew and remove the panel under the glove box. Once that was done, the old filters were easy to remove and the new ones easy to put in. Be sure to insert the filters with the arrows pointing toward the passenger compartment. The manufacturer wrongly said to point them to the engine in the manual, which appears to have been updated. Good product but I'm not looking forward to installing them again.