A:Yes,ecu master does

A:ECU Master does not support locked MRD and MRG1 ECUs. In general, it supports MRD/MRG1 engine ECUs manufactured before the first half of 2020. For newer locked versions produced after that period, reading is currently not supported.
As for Mercedes-Benz transmission control units, ECU Master supports reading and processing VGS4 (NAG2) transmission control modules.
For compatibility verification, it is recommended to provide the ECU or TCU part number before purchase.

A:Requires an internet connection to work.

A:Yes, the programmer supports data logging (test logs) during diagnostics. The log function is mainly used for fault diagnosis, ECU communication checking, and troubleshooting analysis.
Regarding protocols and connection methods:
It supports a wide range of vehicle models and ECUs
Most operations are based on OBD and BENCH modes
Some specific ECUs may require BOOT mode depending on the security level and operation type
If you need, we can also check the exact supported functions for your target vehicle or ECU model via the compatibility list and confirm the best working method for you

A:Yes, depending on the transmission type and communication mode, different accessories are required.
VGS4-0-NAG2
Initialization can be supported via OBD / BENCH mode.
BENCH mode requires: BENCH-C V1 cable set or TCM012 dedicated adapter
BDM / JTAG mode requires: W013 cable set
VGS4-500-NAG2
Initialization can only be performed via BDM / JTAG mode.
Required accessories:
BENCH-C V1 cable set or TCM012 dedicated adapter
W013 cable set
If you are not sure about your specific ECU type, please send us the ECU label or vehicle information, and we will confirm the correct solution for you.

A:Yes, it does

A:Yes, OBDSTAR ECU Master supports Land Rover 9HP50 TCM VIN change.