Trailer coupling socket wiring harness, removal and installation

AR31.19-P-1400ME

Trailer coupling socket wiring harness, removal and installation

12.04.2019

Model

167

with code 460 (Canada version)

with code 550 (Trailer coupling)

Model

167

with code 494 (US version)

with code 550 (Trailer coupling)

Model

167

with code 496 (Mexico version)

with code 550 (Trailer coupling)

Model

167

with code 550 (Trailer coupling)

with code 625 (Australia specification)

Modification notes

28.03.2019

Method revised, "expose electrical wiring harness in vehicle interior" and "function check of lighting signals", added.

Operation steps 6 and 13

1

Electrical connectors

2

Female contact

3

Nut

4

Electrical wiring harness

5

Crossmember

6

Rear center section

7

Grommet

8

Electrical connector

 Warning

Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.

No parts of the body or limbs should be within the operating area when the components are moving.

AS00.00-Z-0011-01A

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Notes on HANDS-FREE ACCESS

AH80.61-P-0001-01A

 

Remove/install

1

Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).

2

Remove right load compartment cover.

Type 167

Model 167.1

AR68.30-P-4800ME

Model 167.3

AR68.30-P-1185MEC

Model 167.9 except code M036 (Maybach version)

AR68.30-P-1185MEX

3

Release and disconnect electrical connections (1).

4

Unclip contact socket (2).

5

Remove nut (3) and remove ground line.

 The nut (3) and ground line form a single component.

 Right wheelhouse trunk ground point

*BA00.19-P-1006-01M

6

Expose electrical wiring harness (4) in vehicle interior.

 Dismantling tool

*000589956300

7

Remove rear bumper.

AR88.20-P-2200ME

8

Disconnect electrical connector (8).

9

Unclip electrical wiring harness (4) at attachment points along crossmember (5) and rear-end center section (6).

 Dismantling tool

*000589956300

10

Loosen grommet (7) from side wall.

 Installation:
Make sure that the grommet (7) is seated correctly.
Otherwise moisture can enter the vehicle interior.

11

Route electrical wiring harness (4) outwards and remove.

12

Install in the reverse order.



Check

13

Perform function check of light signals on trailer socket.

 Ground points

Number

Designation

Model 167

BA00.19-P-1006-01M

Right wheelhouse trunk ground point

W7

Nm

10