Bosch control unit

Bosch MED17.1.27

MED17.1.27 is a Bosch control unit that CARTESIAN recognises from the content of its file, whatever tool read it. It is listed for 4 vehicle brands (Audi, Seat, Škoda, Volkswagen). The archive holds original files for it, collected since September 2026.

Maker
Bosch
Vehicle brands
4
Original files
in the archive
Checksum
corrected on save
Opening the unit
Medium
Last file added
October 2026

Vehicles

Listed for Audi, Seat, Škoda, Volkswagen.

Most seen in the archive: Volkswagen UP!, Volkswagen Golf, Volkswagen Polo, Volkswagen Caddy, Seat Arona, Škoda Fabia, Volkswagen T-Cross, Seat Ibiza.

What CARTESIAN does with this unit

The solutions CARTESIAN offers for a file of this unit are those the file itself supports: DPF, EGR, AdBlue, lambda, flaps, start/stop, speed limiter, hot start fix and fault codes one by one by name. The app lists only what the opened file supports and refuses what it cannot change exactly.

Checksum: corrected automatically on every save, so the file is ready to write with your own tool.

Back to the original: with the archive's original file a modified unit can be returned to stock, and History keeps the original of every job you process.

Original files in the archive

The archive holds original files of this unit, collected since September 2026 and last added in October 2026. Search them in your account or in the app by hardware or software number, or hand it the file you read and the closest originals are suggested; downloads count against your plan's daily allowance.

Hardware and software pairs seen most often
HardwareSoftware
04C907309BB04C907309BB
04C907309BP04C907309BP
04C907309BB10SW036073
04C907309BA10SW037540
04C907309BP10SW048630
04E907309EN04E907309EN
04C907309BB10SW036068
04C907309BT10SW071436
04C907309BP10SW048510
04C907309BP048630
Typical file size
4,096.00 KB, 2,048.00 KB, 4,352.00 KB
Fuel
petrol 97%, diesel 3%
Brands in the archive
Volkswagen, Seat, Škoda, Audi, Mercedes-Benz, Dodge

Opening the unit: medium difficulty

  • Ordinary circuit board, no gel, in a sealed aluminium housing.
  • On most versions the lid is bonded with a sealant bead and one edge of the board sits in thermal compound; levering there can bend the board.
  • The boot contact on the board is small; overheating it has broken tracks in documented cases.
  • Most versions can be read and written through the connector, so opening is rarely needed.

Advice: Check first whether the job can be done without opening it. If you open it, cut the sealant, never lever on the board, and reseal it afterwards.

General information: units with the same name can differ. Follow your tool's connection guide.

Related Bosch units

All Bosch control units

Open a Bosch MED17.1.27 file in CARTESIAN

Download the app, sign in with your e-mail and open the file you read: the unit is recognised from its content and the solutions it supports are listed.