S 550 (221.171) V8-5.5L (273.961) (2007)
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14. Insert white, 4-pin coupling from the trailer hitch wiring harness (22) at the rear signal acquisition and actuation module with fuse and relay
module control unit (N10/2) (see arrow).
The plug position is marked with "H1" on the rear signal acquisition and actuation module with fuse and relay module control unit (N10/2)
15. Fasten trailer hitch wiring harness (22) with cable ties on existing lines in the rear signal acquisition and actuation module with fuse and relay
module control unit (N10/2).
