Top 5 Tools to Read VAG Simos 19.3 ECU

 To read a Simos 19.3 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 March, 2025, here are some reliable options:

 

 

1). 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

 

 

 

2). Magic MotoSport Flex 

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

 

3). 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.

 

4). bFlash

SIMOS 19.6 & 19.3 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

 

 

5). 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.