972419 Removing and installing wire harness for removable trailer hitch
WM 972419 Removing and installing wire harness for removable trailer hitch
Technical values
Preliminary work for removing and installing wire harness for removable trailer hitch
1. Remove rear apron. -> 635519 Removing and installing rear apron - section on "Removing"
2. Remove right luggage compartment cover.-> 700619 Removing and installing luggage compartment trim panel (luggage compartment cover) - section on "Removing"
Removing wire harness for removable trailer hitch
1. Switch off ignition and remove remote control.
2. Remove guard
Removing guard
3. Detach upper part of cover -1- from trailer hitch motor by turning -A- and remove -B-.
Detaching trailer hitch motor cover
4. Release electrical plug connection -1- using a screwdriver -a- and disconnect.
Disconnecting plug from trailer hitch motor
5. Disconnect electrical plug connection -2-
6. Detach three tie wraps at trailer hitch.
Detaching tie wraps at trailer hitch
Information
Always replace the fastening screws and nuts after customer service and reworking. The micro-self-locking screws must not be treated, greased or loosened and then screwed on again.
7. Unscrew two fastening screws -1- of plug socket -2- and remove plug socket.
Removing plug socket
8. Release three catches on socket housing using a screwdriver.
9. Remove lower part of socket housing -1- and push back rubber seal -2-.
Disassembling plug socket
10. Release three catches on plug using a screwdriver and remove socket housing -3-.
11. Guide plug socket through recess in trailer hitch.
12. Remove fastening nut -1- and detach ground cable -2-.
Removing ground cable and plug
13. Release and disconnect electrical plug connection -3- from trailer hitch control unit -a-.
14. Remove grommet -1- from body and guide wire harness out of body.
Removing grommet and tie wraps
15. Detach tie wraps -2- of the four fastening clips.
16. Remove wire harness.
Installing wire harness for removable trailer hitch
1. Position wire harness.
2. Guide wire harness through opening in body and insert grommet -1- in opening.
Fitting grommet and tie wraps
3. Attach wire harness to four fastening clips -2- with tie wraps.
4. Guide plug socket through recess in trailer hitch.
5. Insert plug socket -1- in socket housing until plug socket engages securely.
Assembling plug socket
6. Fit rubber seal -2- and fit lower part of socket housing -3-. Ensure that seal makes good contact and that lower part of housing engages securely.
Information
Always replace the fastening screws and nuts after customer service and reworking. The micro-self-locking screws must not be treated, greased or loosened and then screwed on again.
7. Screw plug socket -2- to trailer hitch with two fastening screws -1-. => Tightening torque: 3.5 Nm (2.6 ftlb)
Installing plug socket
8. Attach wire harness to three fastening clips with tie-wraps. Ensure that wire harness follows contours of trailer hitch.
Attaching wire harness to trailer hitch
9. Insert electric plug connections -1- and -2- in trailer hitch motor until plugs engage securely.
Connecting plugs to motor
10. Fit upper part of motor cover -1- onto motor of trailer hitch -A- and turn to lock -B- until upper part engages securely.
Attaching upper part of motor cover
11. Attach ground cable -2- with fastening nut -1-.=> Tightening torque: 9.7 Nm (7.2 ftlb)
Attaching plug and ground cable
12. Insert electrical plug connection -3- in trailer hitch control unit until it engages securely.
13. Attach guard
Attaching guard
Subsequent work for removing and installing wire harness for removable trailer hitch
1. Attach right side trim panel for luggage compartment. -> 700319 Removing and installing rear side trim panel for luggage compartment - section on "Installing" Service and Repair.
2. Install right luggage compartment cover.-> 700619 Removing and installing luggage compartment trim panel (luggage compartment cover) - section on "Installing"