Finally got her up on a ramp for a proper inspection. Yes can confirm similar rubbery underseal. Rust not as bad as I thought but still needs doing asap.

I'm following your W123 journey with interest. Just bought a W124 and now I've found some rather large rust holes that need mending. Quotes on work pending. Good luck with your w123. :)

Made their way North. One slowing traffic on M11 about an hour ago.

Argh typo! 😀

I would say Z80 but I don't thinkbthatvprocessor was manufactured till the mid 70s