Alientech KESS3 Update VAG 2019-2025 MG1CS004 ECU via OBD

Great news for professionals working with Bosch MD1CS004 ECUs installed on 2.0L TDI engines from the VAG group, from 2019 to 2025!

With the latest Alientech KESS3 software update (V2.17), you can now perform VR reading and write directly via OBD on these ECUs, making your operations faster and easier.

Important note:
MD1CS004 ECUs with hardware H80 can only be managed via OBD. These specific ECUs cannot be accessed using the BENCH mode.

Check compatibility now and take advantage of the new OBD protocol capabilities:
• AUDI: 2.0L TDI EU6
• CUPRA: 2.0L TDI EU6
• SEAT: 2.0L TDI EU6
• SKODA: 2.0L TDI EU6
• VOLKSWAGEN: 2.0L TDI EU6

Extended coverage and VR files:
We’ve significantly expanded protocol coverage across more ECU versions, enriching our VR file library. Many VR files are already available and ready to support your work (although we can’t guarantee every single one!).

KESS3 MD1CS004 OBD

Sopports the following car models:

VW

VR, WR in OBD

Caddy 2.0 TDI Diesel 55 kW
Golf Variant 2.0 TDI Diesel 110 kW
Golf Variant 2.0 TDI Diesel 85 kW
Golf Alltrack 2.0 TDI 4Motion Diesel 147 kW
Golf 2.0 TDI Diesel 110 kW
Golf 2.0 TDI Diesel 85 kW
Passat 2.0 TDI SCR 7AT Diesel 147 kW
Passat 2.0 TDI SCR 4Motion 7AT Diesel 147 kW
Passat 2.0 TDI SCR 7AT Diesel 110 kW
Golf GTD 2.0 TDI 16v DSG Diesel 147 kW
T-Roc 2.0 TDI Diesel 110 kW
Touran 2.0 TDI Diesel 110 kW
Tiguan 2.0 TDI Diesel 147 kW
Tiguan 2.0 TDI Diesel 110 kW
Passat 2.0 TDI Diesel 142 kW
Passat 2.0 TDI Diesel 110 kW
Passat 2.0 TDI Diesel 90 kW
Golf 2.0 TDI Diesel 147 kW
Arteon 2.0 TDI Diesel 147 kW
Arteon 2.0 TDI Diesel 110 kW

AUDI

VR, WR in OBD
A7 Sportback 40 2.0 TDI Quattro S-Tronic Diesel 150 kW
A7 Sportback 40 2.0 TDI S-Tronic Diesel 150 kW
A6 40 2.0 TDI Quattro S-Tronic Diesel 150 kW
A6 40 2.0 TDI S-Tronic Diesel 150 kW
A5 Sportback 40 2.0 TDI Quattro S-Tronic Diesel 150 kW
A5 Sportback 40 2.0 TDI S-Tronic Diesel 150 kW
A5 Cabriolet 40 2.0 TDI Quattro S-Tronic Diesel 150 kW
A5 Cabriolet 40 2.0 TDI S-Tronic Diesel 150 kW
A5 40 2.0 TDI Quattro S-Tronic Diesel 150 kW
A5 40 2.0 TDI S-Tronic Diesel 150 kW
A4 Allroad 40 2.0 TDI Quattro S-Tronic Diesel 150 kW
A4 Allroad 40 2.0 TDI S-Tronic Diesel 150 kW
A4 40 2.0 TDI Quattro S-Tronic Diesel 150 kW
A4 40 2.0 TDI S-Tronic Diesel 150 kW
A3 Cabriolet 40 2.0 TDI Quattro S-Tronic Diesel 135 kW
A3 Sedan 40 2.0 TDI Quattro S-Tronic Diesel 135 kW
A3 Sportback 40 2.0 TDI Quattro S-Tronic Diesel 135 kW
SQ5 40 2.0 TDI Quattro S-Tronic Diesel 150 kW
Q3 40 2.0 TDI S-Tronic Diesel 147 kW
Q3 40 2.0 TDI S-Tronic Diesel 140 kW
A3 40 2.0 TDI S-Tronic Diesel 147 kW
A3 40 2.0 TDI S-Tronic Diesel 135 kW

CUPRA

VR, WR in OBD

Formentor 2.0 TDI Diesel 110 kW

Seat

VR, WR in OBD

Tarraco 2.0 TDI Diesel 110 kW
Leon 2.0 TDI Diesel 110 kW
Ateca 2.0 TDI Diesel 110 kW

Skoda

VR, WR in OBD

Superb 2.0 TDI Diesel 147 kW
Superb 2.0 TDI Diesel 110 kW
Superb 2.0 TDI Diesel 90 kW
Octavia 2.0 TDI Diesel 147 kW
Octavia 2.0 TDI Diesel 110 kW
Kodiaq 2.0 TDI Diesel 142 kW
Karoq 2.0 TDI Diesel 110 kW
Karoq 2.0 TDI Diesel 85 kW

This new OBD protocol for Bosch MD1CS004 allows workshops to efficiently work on vehicles produced from 2019 to 2025, opening up new opportunities on the latest models.

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