That photo shows a breakdown that's different then what I've seen in the later (built after I think 8/92) cars, where the insulation turns to powder. Those wires in the picture simply have cracks, no?

No problems yet on my 6/02 500E (knocking on burl)

Good luck!

BTW, which/how many harnesses do you plan to replace?

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo