Command Line Arguments for HHT-WIN in Mercedes-Benz Xentry Diagnostics (NFZ)

For automotive technicians working with Mercedes-Benz commercial vehicles (NFZ), efficient diagnostic procedures are crucial. While modern Xentry systems offer user-friendly interfaces, understanding command-line arguments for legacy tools like HHT-WIN can significantly enhance your diagnostic capabilities, especially when integrated within the Xentry environment. This article explores the command-line parameters for HHT-WIN, a diagnostic program often utilized in conjunction with Mercedes-Benz Star Diagnostics systems, particularly when dealing with older NFZ models within the broader Xentry diagnostic suite.

Understanding HHT-WIN Command Line Options for NFZ Diagnostics

HHT-WIN (Hand Held Tester for Windows) is a diagnostic software that, while predating the fully integrated Xentry environment, remains relevant for specific tasks and vehicle generations within Mercedes-Benz diagnostics. When operating in a Windows environment, HHT-WIN can be launched directly using command-line arguments, offering a streamlined approach for experienced technicians. These parameters allow for specifying vehicle models, engine types, and other configurations directly at startup, potentially saving time and improving workflow efficiency.

Command Line Parameters for 32-bit Systems

In 32-bit operating systems, HHT-WIN typically runs natively. Here are the command-line parameters for both passenger cars (PKW) and commercial vehicles (NFZ):

For Passenger Cars (PKW):

• Command: hhtpkw.exe
• Parameters:
  • -Lnn: Language selection (e.g., -L02 for a specific language code).
  • -b baureihe: Model series (e.g., -b124, -b140, -b202, -b201, -b210, -b126, -b107).
  • -m motor: Engine type (e.g., -mB for Gasoline (Benzin), -mD for Diesel).
  • -wO8154711: This parameter’s function is unclear but is consistently included in examples. Further investigation may be needed.
  • -C dbname: Database name (e.g., -CPKWWIN.CDB).
  • -P dbpath: Database path (e.g., -PC:PROGRA~1MERCED~1HHTPKW).
  • -D Dialog: Enables dialog mode (-D).

Example Usage (PKW): hhtpkw.exe -b140 -mD -wO8154711 (Starts HHT-WIN for W140 Diesel variant)

For Commercial Vehicles (NFZ):

• Command: HHTNFZ.EXE
• Parameters:
  • -n nfz: Specifies NFZ mode.
  • -wO8154711: Again, function unclear, but consistently used.
  • -b baureihe: Model series (e.g., -bSPRN for Sprinter).
  • -C dbname: Database name (e.g., -CNFZWIN.CDB).
  • -P dbpath: Database path (e.g., -PC:PROGRA~1MERCED~1HHTNFZ).
  • -D Dialog: Enables dialog mode (-D).

Example Usage (NFZ): HHTNFZ.EXE -n -wO8154711 -bSPRN (Starts HHT-WIN for Sprinter NFZ)

HHT-PKW

Image: Screenshot potentially showing the HHT-PKW interface, representing the diagnostic software discussed.

Command Line Parameters for 64-bit Systems

In 64-bit environments, HHT-WIN typically operates within a virtual machine. The startup process involves batch files to initiate the VM and HHT-WIN.

• Command: HHTWIN_VM_Start.exe

• Parameters:

  • For PKW: HHTWIN_VM_Start_PKW.bat
  • For NFZ: HHTWIN_VM_Start_NFZ.bat

The specific batch file (either PKW or NFZ) is passed as a parameter to the HHTWIN_VM_Start.exe executable.

Example Usage (64-bit):

• HHTWIN_VM_Start.exe -HHTWIN_VM_Start_PKW.bat (Starts HHT-WIN for PKW in VM)
• HHTWIN_VM_Start.exe -HHTWIN_VM_Start_NFZ.bat (Starts HHT-WIN for NFZ in VM)

It’s noted that the -w parameter is consistently present but its exact function requires further clarification. The -D parameter likely controls the display of dialog boxes within the HHT-WIN interface.

Optimizing Xentry Diagnostics with Command Line Knowledge

While Xentry is the primary diagnostic platform for modern Mercedes-Benz vehicles, understanding the underlying command-line options for tools like HHT-WIN provides a deeper insight into the diagnostic process. For technicians working across a range of Mercedes-Benz models, including older NFZ vehicles, this knowledge can be invaluable for troubleshooting and efficient system access. Further exploration of these parameters and their impact on diagnostic workflows can lead to significant improvements in diagnostic speed and accuracy.

Further Resources:

• Setting up MB HHT-Win Software on Windows 7 (Related article for HHT-WIN setup).