2.5 to 3 hours would be a fair time & that is what the techs at our shop get paid. The problem with this is; every dealer can charge whatever they want to as MB has *NO* specified time to install these wiring harnesses. ON almost all jobs MB does have a set time & dealerships are supposed to follow that.

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator