Car is 2000 M5, Februar production, with 160K miles on it, I had the car in the past 12 months (got it with 145K)
Changed my oil and oil filter today, oil and filter are ~2500 miles old.
Opened the oil filter and this is how it looks like -
1. Plenty of black rubber-like substance, it keeps it's shape (kind of firm feel to it) but I can roll it to balls with my fingers if I pick it up.
2. Very few shiny particles (circled in red, see in the pictures), they are tiny, would not be picked up by a magnet nor could I pick them up from the filter media with my fingers.
Questions are:
1. Should I be worried about either of the items?
2. The oil sent to Blackstone, once results come in I will update
3. For the metal particles, any idea where could they come from, is it normal wear and tear or does this qualify for more concern?
prac1.jpgprac2.jpg
Last edited by Ron1999; 01-14-2020 at 12:58 PM.
Rubber most likely are seals/orings/gaskets. Plastic/metal bits could be the chain guides. I would start the engine until it's figured out. You could drop the pan and check furthermore. How did it sound before? Noisy all the time? Or only at startup? I'm interested in the oil analysis results as well.
That looks like plastic. Might be timing chain guides. Drop the pan to confirm if it is timing chain guides
Current
1999 BMW M3/2/5 cosmos/black vaders
Past
2000 BMW M5, Jetblack
1995 BMW M3/2/5, Alpine white
1997 BMW 328/5, Boston green
2005 BMW 330/6 ZHP, Silbergrau
1999 BMW 540/6, Cashmere beige
2000 BMW 328/5, 144k miles sienna red (slicktop)
1995 BMW Dinan M3/2/5, Dakar yellow (I regret it)
2002 BMW 530iA sport, Jetblack
2001 BMW 530iA sport, cosmos
2002 BMW 530iA, sterlinggrau
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