2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # LI82-85_P-048277 Date: 091110

2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # LI82-85_P-048277 Date: 091110

COMAND(R) or Audio APS - Theft Protection Active Appears

AUDIO 50 APS/COMAND APS: "THEFT PROTECTION ACTIVE" APPEARS ON THE DISPLAY"

Topic number LI82.85-P-048277

Version 1

Design group 82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)

Date 11-10-2009

Validity Model 164 and 251 with COMAND (code 512 or 527) or Audio 50 APS (code 511 or 525) and code 809 (NTG2.5)

Reason for change

Reason for block

2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 176

Complaint:

After replacement of the Comand (A40/3) or Audio 50 APS (A2/56), the message "Theft protection active" appears on the display. Initial startup

was completed successfully with DAS / Xentry Diagnostics. In addition, the "Unlock radio" step was performed under menu item "Control unit

adaptations" with DAS / Xentry Diagnostics.

Cause:

There is a hardware fault in the EZS (N73). The part numbers from EZS (N73) A164 545 15 08 and A164 545 16 08 are affected. These two EZS

variants (N73) are not compatible with the theft protection function in the Audio 50 (A2/56) or Comand (A40/3).

Remedy:

Replace EZS (N73). Determine part number in EPC.

Note:

When an Audio 50 APS (A2/56) or Comand APS (A40/3) with PIN theft, protection is installed in a vehicle, the PIN code of the newly installed

COMAND/Audio 50 must be documented in the VeDoc system. Pay attention to the relevant information during initial startup with DAS / Xentry

Diagnostic.

Note:

Carry out the initial startup process/SCN coding completely so that the PIN code can be loaded correctly on the head unit other wise the head unit

will stop working after 50 ignition cycles.

Symptoms

Work units

WIS-References

2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 177