OBDSTAR | SKU: TCM-012 / 7.55.2

OBDSTAR (TCM-012) | Siemens (VGS2-NAG2/VGS3-NAG2) 6-pins TCM – 15-pins DB15 Adapter Cable | Passenger Car

Name: OBDSTAR (TCM-012) | Siemens (VGS2-NAG2/VGS3-NAG2) 6-pins TCM – 15-pins DB15 Adapter Cable | Passenger Car
Brand: OBDSTAR
SKU: TCM-012 / 7.55.2
Price: 30.95 EUR
Availability: InStock

€30,95 incl.

€25,58 excl.

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The OBDSTAR TCM-012 is an Adapter Cable designed for direct connection of a diagnostic programmer to the Siemens VGS2-NAG2 and VGS3-NAG2 transmission control units (TCM). These TCM variants are used in the Mercedes-Benz 722.9 7G-Tronic automatic and are recognizable by their 6-pin TCM connector. The cable ends in a 15-pin DB15 connector on the device side and is exclusively compatible with OBDSTAR readers or programmers.

The Adapter Cable enables a direct bench connection between the OBDSTAR programmer and the detached or installed TCM, without using the vehicle's OBD port. Via the 6-pin TCM side, the control unit is powered and the diagnostic and programming protocols required for reading or rewriting the transmission data are transferred. The DB15 connector on the other side connects directly to the corresponding port of the OBDSTAR device, allowing signal transmission without additional adapters. This method is mainly used for TCM replacement, data recovery, or adaptation reset of the 7G-Tronic transmission control unit.

ADVANTAGES

✔ Enables a direct bench connection with the TCM, allowing programming outside the vehicle without access to the OBD port.

✔ Specifically tailored to the Siemens VGS2-NAG2 and VGS3-NAG2 connectors, ensuring mechanical and electrical precision fitting to the respective TCM variants.

✔ Covers a wide vehicle range due to the widespread use of the Mercedes-Benz 722.9 7G-Tronic transmission in multiple model series and production years.

CAUTIONS

✕ Only suitable for TCMs with a 6-pin Siemens VGS2-NAG2 or VGS3-NAG2 connector; other transmission control units or connector types are not supported.

✕ The Adapter Cable is exclusively compatible with OBDSTAR readers or programmers and does not work with diagnostic hardware from other manufacturers.

✕ An external power source is required for correct operation during bench use, as the TCM does not receive its own power outside the vehicle.

Applications and Features

The TCM-012 supports the following diagnostic functions on the Siemens VGS2-NAG2 and VGS3-NAG2 transmission control units via an OBDSTAR programmer:

TCM programming: Overwriting or reprogramming the transmission control unit, used during TCM replacement or restoring factory data.
Adaptation reset: Clearing stored transmission adaptations in the TCM, after which the 7G-Tronic performs a new learning sequence for shift characteristics.
Data reading: Reading the current TCM configuration, software version, and stored parameter data for diagnosis or archiving before replacement.
Bench mode operation: Establishing a direct connection with the detached TCM outside the vehicle, without using the vehicle's OBD port.

Compatible Vehicles and Applications

The following vehicles are equipped with the Siemens VGS2-NAG2 or VGS3-NAG2 transmission control unit combined with the Mercedes-Benz 722.9 7G-Tronic automatic. The listed production years are a general indication based on the production period of the respective model series.

Infiniti:

Q50 / Q60 / Q70 / QX30 / QX70 / QX80 (models with Mercedes-Benz 2.0T or 2.2D powertrain, approx. 2014–2018)

Mercedes-Benz:

A-Class / B-Class (specific all-wheel-drive variants, approx. 2013–2018)
C-Class W203 / W204 / W205 – C230, C250, C280, C300, C350, C400, C63 AMG (approx. 2004–2018)
CL-Class C215 / C216 – CL500, CL63 AMG (approx. 2004–2014)
CLA-Class / CLS-Class C219 / C218 – CLS350, CLS500, CLS550, CLS63 AMG (approx. 2004–2018)
CLK-Class C209 – CLK350, CLK500 (approx. 2004–2010)
E-Class W211 / W212 / W213 – E250, E320, E350, E400, E500, E550, E63 AMG (approx. 2004–2018)
G-Class W463 – G500, G550, G63 AMG (approx. 2004–2018)
GL-Class / GLS-Class X164 / X166 – GL320, GL350, GL450, GL550, GL63 AMG (approx. 2006–2018)
GLC-Class / GLK-Class X204 – GLK250, GLK350 (approx. 2008–2015)
GLE-Class / ML-Class W164 / W166 – ML320, ML350, ML500, ML63 AMG, GLE350 (approx. 2005–2018)
Maybach S-Class – S600, S650 (approx. 2015–2018)
R-Class W251 – R320, R350, R500, R63 AMG (approx. 2005–2013)
S-Class W221 / W222 – S300, S320, S350, S400, S500, S550, S600, S63 AMG, S65 AMG (approx. 2005–2018)
SL-Class R230 / R231 – SL400, SL500, SL550, SL63 AMG (approx. 2004–2018)
SLC-Class / SLK-Class R171 / R172 – SLK250, SLK280, SLK300, SLK350, SLK55 AMG (approx. 2004–2016)
Sprinter W906 (3.0 V6 CDI and gasoline versions with 7G-Tronic, approx. 2012–2018)
V-Class / Viano / Vito W447 (models with 7G-Tronic transmission, approx. 2014–2018)

SsangYong:

Chairman H / Chairman W / Korando Turismo / Rexton (models with 7-speed Mercedes-Benz automatic, approx. 2008–2016)

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Good to know: The Siemens VGS2-NAG2 and VGS3-NAG2 TCM is mounted on or near the transmission housing in most Mercedes-Benz models and is accessible from underneath the vehicle after removing the oil pan or protective plate.

Package Contents

1x OBDSTAR (TCM-012) | Siemens (VGS2-NAG2/VGS3-NAG2) 6-pin TCM – 15-pin DB15 Adapter Cable | Passenger Car