Remove/install wiring harness for trailer hitch socket - AR31.19-P-1400N
MODEL /215.375 //////////378 1# up to 31.8.02 with CODE (550) Trailer hitch except CODE (772) AMG styling package - front spoiler, side skirts and rear apron Mechanically swiveling trailer hitch
MODEL /215.375 //////////376 378 1# up to 1.9.02 with CODE (550) Trailer hitch except CODE (772) AMG styling package - front spoiler, side skirts and rear apron 855 Mechanically swiveling trailer hitch
| Remove/install | |||
| Risk of explosion from explosive gas. Risk of poisoning and caustic burns from swallowing battery electrolyte. Risk of injury through burns to skin and eyes from battery acid or when handling damaged lead-acid batteries | No fire, sparks, open flames or smoking. Wear protective gloves, acid-resistant clothing and safety glasses. Pour battery electrolyte only into suitable and appropriately marked containers. | AS54.10-Z-0001-01A | |
| 1 | Disconnect ground cable of battery | AR54.10-P-0003I | |
| Notes on battery | All models | AH54.10-P-0001-01A | |
| Notes on AGM battery | Model 215 as of 1.1.01. | AH54.10-P-0002-01A | |
| 2 | Remove rear bumper | AR88.20-P-2200N | |
| 3 | Remove trailer hitch socket housing | AR31.19-P-1350NA | |
| 4 | Remove operating lever for mechanically swiveling trailer hitch | AR31.11-P-8010M | |
| 5 | Remove trailer recognition control unit | AR31.19-P-1300N | |
| 6.1 | Remove hydraulic pump for remote trunk closing | AR88.50-P-5070N | |
| 7 | Remove rear seat cushion | AR91.12-P-1020N | |
| 8 | Remove rear seat backrest | ||
| 9 | Remove rear SAM control unit (N10/8) | AR54.21-P-1259I | |
| 10.1 | Unscrew brown line (br) with round cable lug from ground shielding CAN and rear SAM (W50/2) | ||
| 11 | Unclip dark-blue fuse carrier (2) of wiring harness for trailer hitch socket (1) from rear fuse box (F4) | ||
| 12 | Remove white, 2-pin coupling (3) from wiring harness for trailer hitch socket (1) from plug position K2 of rear fuse and relay module (K40/5) | ||
| 13 | Remove black, 6-pin coupling (4) from plug position 1 of rear SAM control unit (N10/8) | ||
| 14.1 | Remove white line (ws) and green line (gn) from black, 6-pin coupling (4) of vehicle's own wiring harness | ||
| 14.2 | Remove brown line (br) and brown/red line (br/ rt) from black, 6-pin coupling (4) of vehicle's own wiring harness | ||
| 15 | Separate wiring harness for trailer hitch (1) from vehicle's own wiring harness and guide from the rear through the cable duct into the luggage compartment | ||
| 16 | Unclip cable branch-off line for operating lever with black, 4-pin coupling from wiring harness for trailer hitch socket (1) at rear end center assembly | ||
| 17 | Unscrew brown line (br) with round cable lug from ground (right taillamp in luggage compartment (W7/1)) | ||
| 18 | Remove grommet (5) from wiring harness for trailer hitch socket (1) | ||
| 19 | Loosen harness for trailer hitch socket (1) and pull out to the rear through the body opening under the right taillamp | ||
| 20 | Install in the reverse order | ||
| 21 | Carry out function check of mechanically swiveling trailer hitch | AR31.19-P-1450M | |
| 22 | Perform function test of light signals at the trailer hitch socket. | ||
| AN31.19-P-8100-06MN |