Bosch MED17.5 ECU Tuning

Engine control unit used in 25 supported models from 4 makes.

Audi with the Bosch MED17.5

  • Audi A32003+8P · 1.8 TSI TFSI, 2.0 TFSIAutoTuner
  • Audi A42004+B7, B8 · 1.8 TSI / TFSI, 1.8 TSI TFSI, 2.0 TFSIAutoTuner
  • Audi A52007+8T · 1.8 TSI TFSIAutoTuner
  • Audi Q32011+8U · 2.0 TFSI, 2.0 TFSI - TSI, 35 TFSIAutoTuner
  • Audi TT2006+8J · 1.8 TSI TFSI, 2.0 TFSIAutoTuner

SEAT with the Bosch MED17.5

  • SEAT Alhambra2010+2.0 TFSI, 2.0 TFSI - TSIAutoTuner
  • SEAT Altea2004+1.8 TSI TFSI, 2.0 TFSI, 2.0 TFSI - TSIAutoTuner
  • SEAT Altea XL2006+1.8 TSI TFSI, 2.0 TFSI, 2.0 TFSI - TSIAutoTuner
  • SEAT Exeo2009+1.8 TSI / TFSI, 1.8 TSI TFSI, 2.0 TFSIAutoTuner
  • SEAT Leon2005+1P · 1.8 TSI TFSI, 2.0 TFSI, 2.0 TFSI - TSIAutoTuner
  • SEAT Toledo2006+5P · 1.8 TSI TFSIAutoTuner

Skoda with the Bosch MED17.5

Volkswagen with the Bosch MED17.5

About Bosch MED17.5 tuning

The Bosch MED17.5 engine control unit is supported in 25 models from Audi, SEAT, Skoda, Volkswagen. We read, modify, and flash it with AutoTuner, then verify the result on our Dynojet 424xLC2 in Jenison, MI. A custom calibration optimizes fueling, ignition timing, boost, and torque limits for your exact build.

Browse all supported ECUs and TCUs

Don't See Your Vehicle?

These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.