I may have the same wire harness problem with my w124 94' E320. My MB certified mechanic here in Long Island NY, said it would cost me about 1T. He's giving me a huge labor discount. Just this morning, the first symptom came (engine sputters), he did some splicing and found one wire with insulation problem.Being resourceful, he mended this particular wire and told me it would last for a while, for now. My car is running very well , i just had the signal/heater/emergency power relay replaced ($117), rear flex disc,trans mount, diff mounts, rear sway bar links, front wheel bearings kits and valve cover gasket done for $650. MB dealers would have milked me for more than double. I saw a hirschmann power auto antenna at ebay for $50 (brand new), not the original but a replacement of the same manufacturer. Anyway, to own this piece of marvel will cost $$$ but the satisfaction one gets is something only an MB can give.

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'98 Ford Explorer 34,000M
'92 Lexus Ls400 136,000M
'95 Ford Mustang 94,000M
'93 Astro Van 133,000M
'94 MB E320 148,000M
'96 Jaguar SJ6 66,000M