Retrofit trailer hitch with removable ball neck

AN31.10-S-0012E

Retrofit trailer hitch with removable ball neck

29.07.2019

Model

447.8

with code E57 (Electrics for trailer socket)

with code XM0 (Facelift)

1

Stowage compartment cover

2

Trailer hitch crossmember

N28/1

Trailer recognition (AAG) control unit

3

Vehicle tool kit mount

4

Screw

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

Topical note

Notes on installing a trailer hitch

AH31.10-P-1000-02B

Topical note

Special instructions for lifting and supporting vehicle

AH00.60-N-0100-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S



Remove

1

Detach ground line of on-board electrical system battery.



AR54.10-S-0003E

2

Remove stowage compartment cover (1).

3

Remove jack.

Model 447.8 with code RR6 (Spare wheel with vehicle jack) Model 447.8 with code Y36 (Vehicle jack)

4.1

Remove vehicle tool kit mount (3).

All vehicles with vehicle tool kit mount (3)



AR68.30-S-5020E

 The vehicle tool kit mount (3) is replaced by the vehicle tool kit mount (3) from the parts kit, and can be disposed of properly after removal.

4.2

Remove stowage compartment in right rear passenger compartment.

Model 447.8 except code E65 (Burmester surround sound system) except code RR6 (Spare wheel with vehicle jack) except code SB6 (Comfort front passenger seat, swiveling) except code W68 (Electrically operated liftgate) except code Y36 (Vehicle jack) except code ZG2 (Permanent all-wheel drive) except code ZK7 (MARCO POLO equipment line)



AR68.00-S-0009E

 The stowage compartment in the rear passenger compartment on the right is replaced by the vehicle tool kit mount (3), and can be properly disposed of after removal.

4.3

Remove rear right side trim in rear passenger compartment.

Model 447.8 with code ZK7 (MARCO POLO equipment line) except code RR6 (Spare wheel with vehicle jack) except code Y36 (Vehicle jack)



AR68.30-S-4780E

5

Remove rear bumper.



AR88.20-S-2200E

6

Remove carrier of rear bumper.



AR88.20-S-2250E

 The carrier is no longer required and can be disposed of properly after removal.

7

Remove towing eye from rear crossmember.



Model 447.8

AR64.20-S-1203E

 The towing eye is no longer required and can be disposed of properly after removal.



Install

8

Retrofit trailer hitch electrical wiring harness.

AN31.19-S-8100-05E

 The trailer recognition (AAG) control unit (N28/1) is also installed at the same time.

 M8

*BA00.10-N-1003-01A

 Long wedge

*115589035900

9

Install trailer hitch crossmember (2) with coupling ball.

AN31.11-S-8080-04E

 Screw/bolt, trailer hitch crossmember to longitudinal member

*BA31.10-N-1001-01J

10

Make bumper cutout retroactively.

AN31.11-S-8080-08E

 Commercially available devices/tools
Body saw

11

Install rear bumper.



AR88.20-S-2200E

12

Install vehicle tool kit mount (3).

 Use the vehicle tool kit mount (3) provided in the parts kit.
To do this, secure the vehicle tool kit carrier (3) with screws (4).
Do not install the cap of the vehicle tool kit mount (3) yet.

13

Install jack.

Model 447.8 with code RR6 (Spare wheel with vehicle jack) Model 447.8 with code Y36 (Vehicle jack)

14

Install cap of vehicle tool kit mount (3).

15

Install rear right side trim in rear passenger compartment.



AR68.30-S-4780E

16

Install stowage compartment cover (1).

17

Attach ground line of on-board electrical system battery.



AR54.10-S-0003E

18

Supplement special equipment in Vehicle Documentation (VeDoc).

 Designation of relevant special equipment: Code Q50 (Trailer hitch with removable ball head). The existing entry "Code E57 (Electrical system for trailer socket)" must be deleted.

19

Perform SCN coding on electronic ignition lock (EIS) control unit (N73).



AR54.21-S-0015E

 Under the menu item "Control unit adaptations", follow the instructions for "SCN coding".

 Do not yet remove vehicle diagnosis system.

20

Perform SCN coding on signal acquisition and actuation module (SAM) control unit (N10/1).



AR54.21-S-0015E

 Under the menu item "Control unit adaptations", follow the instructions for "SCN coding".

 Do not yet remove vehicle diagnosis system.

21

Perform SCN coding on radio (Audio/COMAND) (N87/6).



AR54.21-S-0015E

 Under the menu item "Control unit adaptations", follow the instructions for "SCN coding".

 Do not yet remove vehicle diagnosis system.

22

Perform SCN coding on Electronic Stability Program (ESP) control unit (N30/4).



AR54.21-S-0015E

 Under the menu item "Control unit adaptations", follow the instructions for "SCN coding".

 Do not yet remove vehicle diagnosis system.

23

Perform SCN coding on Parktronic (PTS) control unit (N62).



Model 447.8 with code EZ5 (Active Parking Assist with reversing camera) Model 447.8 with code EZ6 (Parking Package with 360° camera) Model 447.8 with code EZ7 (Active Parking Assist)

AR54.21-S-0015E

 Under the menu item "Control unit adaptations", follow the instructions for "SCN coding".

 Do not yet remove vehicle diagnosis system.

24

Perform SCN coding on gateway for user interface CAN (N93/4).



AR54.21-S-0015E

 Under the menu item "Control unit adaptations", follow the instructions for "SCN coding".

 Do not yet remove vehicle diagnosis system.

25.1

Perform SCN coding on reversing camera (RFK) control unit (B84/5).

MODEL 447.8 with CODE FR8 (Reversing camera)



AR54.21-S-0015E

 Under the menu item "Control unit adaptations", follow the instructions for "SCN coding".

 Do not yet remove vehicle diagnosis system.

25.2

Perform SCN coding on 360° camera control unit (N153).

Model 447.8 with code EZ6 (Parking package with 360° camera) Model 447.8 with code JS1 (360° camera)



AR54.21-S-0015E

 Under the menu item "Control unit adaptations", follow the instructions for "SCN coding".



Check

26

Perform function check on trailer socket.

AN31.19-S-8100-06E



000 588 00 63 00 Test box

WS82.00-P-0027B

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

8.8

10.9

BA00.10-N-1003-01A

M8

Galvanized

Nm

23

32

Phosphated

Nm

21

29

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

12.9

BA00.10-N-1003-01A

M8

Galvanized

Nm

38

Phosphated

Nm

36

 Trailer hitch

Number

Designation

Model 447

BA31.10-N-1001-01J

Screw/bolt, trailer hitch crossmember to longitudinal member

Nm

90

Parts ordering note

Part no.

Designation

Quantity

KG99

Trailer hitch package contents

1