Quote:
Originally Posted by spidertri
I had to find this seal when I was installing the Oil tstat on my 128i. A round seal works just fine in the octagon groove. Had it installed since March 2020 with no leaks.
43mm OD, 3mm thick o-ring
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I just installed one of these O-rings and it still leaks from the bottom screw albeit very slowly. But overtime I am pretty sure it will be a mess unless I wipe it off after every drive. Any suggestions? I am reluctant to spend more to get aftermarket cap just to stop the leak unless that is the only way to resolve this.
thanks