I found this resource while trying to determine the feasibility of fixing my car's leak problem. https://www.newtis.info/tisv2/a/en/ It appears to provide information for ALL BMW models. You can enter your vin # for best results. See attached screen shot. I welcome feedback and assistance with my post: https://www.bmwcca.org/forum/index....convertible-leaks-at-seals.23971/#post-102461
Nice find, hadn't come across that one! It goes back as far as 90's-era which obviously covers a lot of cars, nothing there for 80's-era bimmers or earlier, but there are other places that pretty comprehensively address earlier BMW's.