Hello
THANK YOU yes thank you for your help with your wiring harness about W124 320E
Mine have exactly this problem... now resolved (1413 euros including 660 euros for harness and 750 euros of technician)
Now my beautiful 320E is back 100% (with only 53.000km)
you can see many w124 in FRANCE on my website :
http://www.w124.org
you can find a link to your website of course !