2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # LI82-10_P-045622 Date: 091120

2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # LI82-10_P-045622 Date: 091120

2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 134

Lighting - Stop/Tail Light Not Illuminating With DTC's

Stop / Tail Light not Illuminating with DTCs 9102, 9103, 9106, 9107, 9126, 9127 or 9136

Topic number LI82.10-P-045622

Version 4

Design group 82.10 Exterior lights

Date 11-20-2009

Validity Model 164.122/125/172/175/177/186

Model 251.122/156/165/175/177

Reason for change Cable Tie part number included

Reason for block

Complaint:

Stop/Tail Light not Illuminating with DTCs 9102, 9103, 9106, 9107, 9126, 9127 or 9136

(Vehicles without LED tail lamps)

Cause:

N/A

Remedy:

1. Remove trim in cargo area to gain access to tail lamp housing.

2. Twist and remove stop bulb socket (E3e4 on 164 or E3e9 on 251) from the housing.

3. Unplug the electrical connector from the tail lamp housing.

Figures 1, 2 and 3

4. Remove the pin from the actuation line connector for the stop light (Figure 1 or Figure 2).

Note:

Open locking catch otherwise the contacts may be irreparably damaged (AR00.19-0120-02B).

5. Pull on the wire as the pin removal tool is inserted to remove the wire.

Figures 4 and 5

6. Insert actuation line for stop light into repair harness connector pin 2 (Figure 3, 4) and (Figure 4).

7. Plug connector of repair harness into the socket of the repair harness.

2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 135

Note:

Confirm the housing clicks into place.

8. Attach repair harness to left wheel arch trunk line ground terminal W6, and right trunk line ground terminal W7 (Figure 5).

9. Install bulb in socket of repair harness.

10. Install socket into the rear tail lamp housing.

11. Reconnect electrical connector to the tail lamp housing.

12. Fasten repair harness along original harness with one cable tie for the 251 or two cable ties for the 164 to prevent the movement of the connector

on the repair harness.

13. Repeat for stop lamp (Ee4e4 on 164 or E4e9 on 251) on other side.

Attachments

Symptoms

Control unit/fault code

2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 136