Bosch MED9.1 map catalog for Audi and Volkswagen
Open Bosch MED9.1 firmware from Audi A3, S3, A6 and TTS and Volkswagen Golf, Golf R and Jetta in TCEPro and work with its calibration maps as tables and charts in real units. The catalog is licensed to your account and one PC.
About the MED9.1 unit
MED9.1 is a Bosch Motronic MED9 petrol engine control unit for direct-injection engines. This catalog covers its Volkswagen Group (VAG) firmware: the list below shows the vehicles and, under each, the Program IDs (software numbers) it recognizes.
Vehicles with the MED9.1 unit
- Audi A31037386837 1037387458
- Audi A41037386454 1037386820 1037386835 1037386894 1037387400 1037390728 1037399953
- Audi A61037386852 1037389427 1037396795 1037505742 1037534098
- Audi S31037387473 1037501227
- Audi TTS1037393740
- Volkswagen Golf1037387568
- Volkswagen Golf R1037510588
- Volkswagen Jetta1037391667
- Volkswagen Passat1037386638 1037387474 1037391093
- Volkswagen Passat B61037391668
Each Program ID is a software version the catalog recognizes. Not every version of these models uses MED9.1: depending on engine, year and market, a vehicle may have a different unit. TCEPro recognizes the unit from the firmware file itself — if the file comes from an MED9.1 unit, it opens with this catalog.
Your vehicle or software version is not listed?
If your ECU is MED9.1 but its firmware does not open with this catalog, send the file for analysis through Catalog research in your cabinet. New vehicles and software versions of MED9.1 are added to this catalog; firmware from a different ECU becomes a separate catalog with its own price. Available after your first catalog purchase; files up to 10 MB.
What the catalog gives you in TCEPro
- Automatic recognition. Open a .bin, .rom or .mod file read from an MED9.1 unit — TCEPro recognizes it, with no catalog to pick. The Identification panel shows the make, unit supplier, family, versions and recognition confidence.
- A named map tree. Maps appear with names and units in a searchable tree with color tags.
- Tables and charts in real units. Degrees, rpm, milligrams — with line, surface and 3D charts next to the table.
- Compare and carry over. Compare two MED9.1 files, see only the changed maps and carry differences across — a whole map, all changed maps or selected cells.
- Export. Export writes a new file and does not overwrite the source. When TCEPro does not recalculate a unit's checksum, it warns on export — then correct the checksum with your usual tool before flashing.
What you need
- A 64-bit Windows 10 or 11 PC.
- An account on this site with access to the MED9.1 catalog.
- A firmware file read from the unit with your usual equipment — TCEPro does not read or program the ECU.
How to get access
- Buy the MED9.1 catalog from a dealer. The purchase is linked to your email; without an account yet, you get an email to set a password.
- Install TCEPro and sign in with that account.
- Open an MED9.1 firmware file — TCEPro recognizes the unit.
- The catalog downloads automatically and stays available offline for up to 24 hours between check-ins.