Howdy Gang,

When I purchased the oil filter for the 240d the salesman gave me two little rubber o-rings, much smaller than the large one that came with the filter. He said do not forget to put these on. The filter came with a pack of items. Large o-ring I understand. The copper and steel washers? I put the copper on the drain plug and saved the steel one. What is that one for, a different model?

The 1979 240d is a model 123.123 with engine type 616.912. Both the Chiltons and the MB maintenance manual make no mention in the text or the pictures of the little o-rings.

The oil filter is the 2nd version, The filter cover is the long post attached to the cover with the fastening nuts(2) on the outer edge. When I replaced the cover on the oil filter housing the long metal post fit really snug thru the rubber openings of the oil filter. It took a good push to get the cover all the way down. I am wondering if the little o-rings were put in place(?) would they stay. The post on the filter cover has two different looking steel rings near the bottom. These are visible in the MB manual, but no mention of the little o-rings.

Ok, so where do they go? Am I missing something?

Thanks,

J