A6 2.7T EMCS Software Upgrade Page
The following is the list of the current software versions for your car. Simply download the programs and follow the instructions included with your EMCS programmer. For special programs, please contact APR.
| ECU Part Number | Stage | Version Number | Date Released | Download Here | Notes | Stock | 91 | 93 | 100 Race | 104 Race | Valet | Anti Theft |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4B0 907 551 K | 1 | v5.0 | 07/31/03 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4B0 907 551 L | 1 | v5.0 | 07/31/03 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4B0 907 551 P | 1 | v5.0 | 07/31/03 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4B0 907 551 AA | 1 | v5.0 | 07/31/03 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4B0 907 551 Q | 1 | v5.0 | 07/31/03 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4B0 907 551 T | 1 | v5.0 | 07/31/03 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4B0 907 551 AK | 1 | v5.0 | 07/31/03 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4B0 907 551 AL | 1 | v5.0 | 07/31/03 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4Z7 907 551 P | 1 | v10 | 01/12/04 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4Z7 907 551 S | 1 | v1.0 | 01/12/04 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4Z7 907 551 R | 1 | v1.0 | 01/12/04 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
| 4Z7 907 551 AA | 1 | v1.0 | 01/12/04 | File | Octane Specific | Y | Y | Y | Y | N | Y | N |
