Audi A4: ECU, engines and Program IDs
| Engine | Years | ECU | Firmware image | Program ID | OEM software number |
|---|---|---|---|---|---|
| 2.0TFSI | Bosch MED9.1 | 1037386454 | 1037386454 | ||
| 2.0TFSI | Bosch MED9.1 | 1037386820 | 1037386820 | ||
| 2.0TFSI | Bosch MED9.1 | 1037386835, 1037386894 | 1037386835 | ||
| 2.0TFSI | Bosch MED9.1 | 1037386835, 1037386894 | 1037386894 | ||
| 2.0TFSI | Bosch MED9.1 | 1037387400 | 1037387400 | ||
| 2.0TFSI | Bosch MED9.1 | 1037390728, 1037399953 | 1037390728 | ||
| 2.0TFSI | Bosch MED9.1 | 1037390728, 1037399953 | 1037399953 |
Updated November 14, 2026