AR31.19-P-1400GC | Remove/install wiring harness for trailer hitch socket | 15.2.12 |
MODEL 168.006 /007 /008 /009 /031 /032 /033 /109 /131 /132 /133 1#
with CODE (550) Trailer hitch
except CODE (772) AMG styling package - front spoiler, side skirts and rear apron
P31.19-2102-06
2 Wiring harness for trailer hitch socket
3 Rubber grommet
4 Trailer coupling crossmember
5 Black, 6-pin connector
6 White, 4-pin coupling
br Brown cable
N28/1 Trailer recognition control module
W6 Ground (left wheelhousing in trunk)
X52 Trailer hitch connector
X58 Trailer hitch socket (13-pin)
| Remove/install | ||
| Notes on installing a trailer coupling | Models 124, 129, 140, 163, 168, 201, 202, 208, 210, 215, 220. | |
1 | Connect quiescent current retention device | ||
Danger! | Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices | No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers. | |
2 | Disconnect ground cable from battery | ||
| Notes on battery | All models | |
3 | Remove side paneling in trunk | Left-hand side. | |
4 | Remove rear bumper | ||
5 | Detach lower engine compartment paneling | Left rear underbody paneling only. | |
6 | Unscrew 13-pin trailer hitch socket (X58) from trailer hitch crossmember (4) | Three screws. Do not disconnect electrical connectors. | |
7 | Unclip wiring harness for 13-pin trailer hitch socket (X58) on trailer hitch cross member (4) | Three fastening clips (see magnified section). | |
8 | Unscrew brown line (br) from ground (left wheelhouse in luggage compartment (W6). | ||
9 | Disconnect black, 6-pin coupling (5) from trailer recognition control unit (N28/1) | ||
10 | Disconnect white, 4-pin coupling (6) from the trailer hitch connector (X52) | ||
11 | Remove grommet (3) and pull the wiring harness for trailer hitch socket (2) downwards out of the body break-through | Avoid damage. | |
12 | Install in the reverse order | Steps 11 to 1. Pay attention to correct routing of the wiring harness for the trailer hitch socket (2). | |
13 | Perform function test of light signals at the trailer hitch socket. | ||
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Commercially available tools
Referenced documents
- ah3110p100002b Notes on installing a trailer hitch
- ah5410p000101a Notes on battery
- ah5410p000101a
- an3119p810006gc Perform function test of light signals at the trailer hitch socket.
- ar5410p0003a Disconnect/connect battery's ground cable
- ar6120p1105gc Remove/install bottom engine compartment paneling
- ar6830p4800gc Remove/install side paneling in trunk
- ar8820p2200gc Remove/install rear bumper
- as5410z000101a Risk of fire/risk of explosion due to short circuit and escaping oxyhydrogen gas. Risk of (burn) injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte/mist, short circuit and arcing. Risk of