Siemens PCR2.1 ECU Tuning
Engine control unit used in 22 supported models from 4 makes.
Audi with the Siemens PCR2.1
All Audi tunesSEAT with the Siemens PCR2.1
All SEAT tunes- SEAT Altea2004+1.6 TDI CRAutoTuner
- SEAT Altea XL2006+1.6 TDI CRAutoTuner
- SEAT Ibiza2008+6J · 1.6 TDI CRAutoTuner
- SEAT Leon2005+1P · 1.6 TDI CRAutoTuner
- SEAT Toledo2012+KG · 1.6 TDI CRAutoTuner
Skoda with the Siemens PCR2.1
All Skoda tunes- Skoda Fabia2007+1.6 TDI CRAutoTuner
- Skoda Octavia2005+1.6 TDI CRAutoTuner
- Skoda Rapid2012+1.5 TDI, 1.6 TDI CRAutoTuner
- Skoda Roomster2006+1.6 TDI CRAutoTuner
- Skoda Superb2008+1.6 TDI CRAutoTuner
- Skoda Yeti2008+1.6 TDI CRAutoTuner
Volkswagen with the Siemens PCR2.1
All Volkswagen tunes- Volkswagen Ameo2016+1.5 TDIAutoTuner
- Volkswagen Caddy2004+2K · 1.6 TDI CRAutoTuner
- Volkswagen Coccinelle / Beetle2011+1.6 TDI CRAutoTuner
- Volkswagen Golf2008+VI · 1.6 TDI CRAutoTuner
- Volkswagen Jetta2010+1.6 TDI CRAutoTuner
- Volkswagen Passat2005+B6, B7 · 1.6 TDI CRAutoTuner
- Volkswagen Polo2009+6C1, 6R · 1.5 TDI, 1.6 TDI CRAutoTuner
- Volkswagen Touran2010+1.6 TDI CRAutoTuner
- Volkswagen Vento2010+1.5 TDIAutoTuner
About Siemens PCR2.1 tuning
The Siemens PCR2.1 engine control unit is supported in 22 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.
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.