Top Tools to Read VAG Simos 19.3, Simos 19.6 and Simos 19.7 ECUs

To read a Simos 19.3/Simos 19.6 ECU, you’ll need a programmer capable of interfacing with Continental’s Simos 19.x series, which are commonly found in VAG (Volkswagen, Audi, Skoda, Seat) vehicles with turbo petrol engines. These ECUs often require specific protocols and tools that can handle their security features, either via OBD or bench/boot mode. Based on available information and common practices in ECU tuning as of 2025, here are some reliable options:
 
 

1). AutoTuner

Simos 19.3 Ecu Autotuner

Autotuner is now able to perform the following operations:

  • OBD Virtual Read
  • OBD Write

On the following ECU:

  • Continental Simos19.3

Vehicles concerned:

  • Audi 45 TFSI (2.0)
  • Cupra 2.0 TSI EU6d
  • Porsche 2.0T OPF
  • Seat 2.0 TSI FR
  • Skoda 2.0 TSI RS
  • Volkswagen 2.0 TSI EU6
  • Volkswagen 2.0 TSI R EU6d

 

OBD virtual read/write on Continental Simos19.6 ECUs!
Related vehicles:
Audi S3 2.0 TFSI
Audi TT 2.0 TFSI
Audi TT S 2.0 TFSI
Cupra Formentor 2.0 TFSI
Skoda Octavia RS 2.0 TFSI
Skoda Kodiaq RS 2.0 TFSI
Volkswagen Golf VIII GTI
Volkswagen Golf VIII GTI Clubsport
Volkswagen Golf VIII R
Available features:
OBD virtual read/write (1 minute)
DSG DQ381 OBD virtual read/write
CVN fix
Flash counter lock
Datalogging
DTC read/erase

 

AutoTuner also supports Simos 19.7 protocol.

OBD virtual/read write solution for Simos19.7 will be also included in the Early Access.
Related vehicles:
Audi A4 40 TFSI (2.0) MHEV & 45 TFSI (2.0) MHEV
Audi A5 40 TFSI (2.0) MHEV & 45 TFSI (2.0) MHEV
Audi A6 40 TFSI (2.0) MHEV & 45 TFSI (2.0) MHEV
Audi A7 40 TFSI (2.0) MHEV & 45 TFSI (2.0) MHEV
Audi Q5 40 TFSI (2.0) MHEV & 45 TFSI (2.0) MHEV

 

2). Magic MotoSport Flex 

Flex Simos 19;3 Ecu Obd

Operation mode:

Fast OBD (virtual reading) connection, you won’t need to remove and open the ECU to access data in the map area.

  • Add VAG Continental Simos19.3 Virtual Read/Write/Checksum Calculation Maps

Writing Time: ~ 2 minutes

Some of the supported vehicles:

  • Audi Q3 2.0L TFSI 245PS
  • Audi TT 2.0L TFSI 245PS
  • Seat Ateca 2.0L TSI 300PS
  • Skoda Superb 2.0L TSI 280 PS
  • VW Golf 8 GTI 2.0L TSI R 333PS
  • VW T-Roc 2.0L TSI R 300 PS

OBD connection and Datalogger for Simos 19.6 on Flex
Here are some of the supported vehicles:
Audi S3 8Y 2.0 TSI 310 PS
Cupra Formentor 2.0 TSI 245 PS
Cupra Formentor 2.0 TSI 310 PS
Cupra Leon 2.0 TSI 300 PS
Seat Leon 2.0 TSI 245 PS
Skoda Octavia RS 2.0 TSI 245 PS
VW Golf 8 GTI 2.0 TSI 245 PS
VW Golf 8 Clubsport 2.0 TSI 300 PS
VW Golf 8 R 2.0 TSI 320 PS

 

Flex will also read and write Simos 19.7 ECU.

New OBD protocol for Continental Simos 19.7 ECUs
Version 6.51.0.0 of Flex out now
Some of the supported vehicles:
Audi A4 2.0L MHEV TFSI 204PS
Audi A5 2.0L MHEV TFSI 265PS
Audi A6 2.0L MHEV TFSI 204PS
Audi A7 2.0L MHEV TFSI 265PS
Audi Q3 2.0L MHEV TFSI 230PS
Audi Q5 2.0L MHEV TFSI 204PS

 

3). Alientech KESS3

KESS3 now adds VAG Continental Simos 19.3 and Simos 19.6 ECU in September 2025.

Supports vehicle from 2021 to 2025.

Simos 19.7 ECU is not yet available.

Simos 19.3 Ecu

 

4). IXI Personal Flasher

This tool is specifically designed for Simos 19.3 and 19.7 ECUs, offering OBD programming. It’s noted as one of the first devices to support these units without requiring ECU removal, making it a convenient choice for quick map area access and software updates.
 
5). bFlash
SIMOS 19.6, Simos 19.3 and Simos 19.7 protocols are available in FULL OBD and for FREE for every bFlash user.
Siemens

Simos 19.6 TC297

Cars:

Audi S3 8Y 2.0 TSI 310hp

Cupra Formentor 2.0 TSI 245hp

Cupra Formentor 2.0 TSI 310hp

Cupra Leon 2.0 TSI 300hp

Seat Leon 2.0 TSI 245hp

Skoda Octavia RS 2.0 TSI 245hp

VW Golf 8 GTI 2.0 TSI 245hp

VW Golf 8 Clubsport 2.0 TSI 300hp

VW Golf 8 R 2.0 TSI 320hp

SIEMENS

Simos 19.3 TC297 (open beta)

Cars:

Audi SQ2 2.0 TSI 300hp

Audi Q3 2.0 TSI 245hp

Audi TT 2.0 TSI 245hp

 Audi TTS 2.0 TSI 310hp

Cupra Ateca 2.0 TSI 300hp

Seat Tarraco 2.0 TSI 245hp

Skoda Kodiaq 2.0 TSI 245hp

Skoda Superb 2.0 TSI 280hp

VW Arteon 2.0 TSI 280hp

VW Arteon 2.0 TSI 320hp

VW Passat 2.0 TSI 280hp

VW Tiguan 2.0 TSI 280hp

VW T-Roc 2.0 TSI 300hp

 
 
6). CMDFlash
CONTINENTAL SIMOS19.3 VAG VR/W/CHK/Recovery
SIMOS 19 Obd Protocol now supports 19.6 and 19.3.
This protocol is available for Full Master and Full Slave users only
 
Alientech KESS3 is not yet support Simos 19.x ECUs. 

OBDII365