Another nit wrt to the early W126 chassis.

The 1985 cars also came with a power headrest, earlier ones were manual.
Might explain some of the additional wires.

Jim

__________________
14 E250 BlueTEC black. 45k miles
95 E320 Cabriolet Emerald green 66k miles
94 E320 Cabriolet Emerald green 152k miles
85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles