Originally Posted by scoopcoupe
Can someone explain this "fleece" oil filter? I'm from the w124 thread and saw the poll, so decided to read. Good info and discussion here.
Sure, I will do my best. Fleece filters are just what they are called, filters made of fleece. They differ from other filters made of paper, and they have been used in some model MBs. Unfortunately, I do not know when, how long, nor which specific models use fleece filters. I do know my '99 SLK230 takes the regular paper filter in cylinder shape. Some say the fleece filters work better at filtering the oil that flows through them. Again, I have no data to support or refute this claim, so I hope someone else with more info can chime in and shed more light on this matter.
Of course, I would be very willing to try a fleece filter in my vehicle just for the heck of it. All this talk makes you wonder if there is any truth to the claims, and I am a tinkerer and like to test stuff for myself as long as it is within reason and will not make my car blow up
"One of the more interesting developments in filter technology has apparently been driven by the need for a product that can withstand the ultra-long drain intervals of the MB 229.5 specification oils. MANN+HUMMEL has developed the filter that has a polyester fleece filter element design to work for the 30,000 kilometer (18,641 mile) drain interval, and incorporates a special support structure that helps the filter last. Furthermore, this filter dispenses with all metal â€“ it is 100% plastic and therefore has a lower potential for environmental impact. While not widespread, the MANN+HUMMEL filter technology could be a glimpse at the future should extended drain intervals become the norm."
This excerpt is from an article in May 2005 called the MEMA Special Report on Extended Oil Changes. Of course, this is 2007 so a lot has transpired since then, but you get the idea and the origination of the fleece filter development. Google is such a wonderful tool you should use it more often.