At first sight, it may look like removing the oil filter is a harder task than it really is. Some assume that to remove the oil filter housing cap requires a special tool from BMW. While specific tools are available, they're typically expensive, hard to source, and not needed for the job. A readily available old-fashion oil filter wrench will loosen and then retighten the cap without a problem. We recommend the type with rubber lining to avoid marking or damaging the plastic housing cap, however a carefully placed microfibre towel can also help with other wrench designs. As ever, if you have any questions, we're always here to help!