Hi.
Here's a site with technical information/maintenance on some vintage MB's including the 124. It's in German, but some are in English too. Several links are unfortunately not working, but the site is quite comprehensive, so some useful info is still there. Well, it may not be the most modern DIY site, but my experience says it's always some good points to pick up on such sites.
Happy reading.
http://www.thomconsulting.de/MB/w126.htm
-arnt-
Here's a site with technical information/maintenance on some vintage MB's including the 124. It's in German, but some are in English too. Several links are unfortunately not working, but the site is quite comprehensive, so some useful info is still there. Well, it may not be the most modern DIY site, but my experience says it's always some good points to pick up on such sites.
Happy reading.

http://www.thomconsulting.de/MB/w126.htm
-arnt-