SEAT Mii ECU remapping
6 files available

About remapping
The Seat Mii accounts for 6 files in our catalogue, entirely the 1.0 three-cylinder naturally aspirated petrol including the 60 hp version. It is a city car built jointly with Volkswagen and Škoda.
Stage 1 accounts for all 6 files — a completely clean profile with no maintenance work at all. The ECUs are ME17.5.2, ME17.5.24, ME17.5.2X and MED17.5. Being naturally aspirated, the gains here are modest by nature.
Model highlights
- ›6 Stage 1 files: a completely clean performance profile.
- ›Entirely the 1.0 three-cylinder naturally aspirated petrol.
- ›Built jointly with Volkswagen and Škoda.
- ›ECUs limited to ME17.5.2, ME17.5.24, ME17.5.2X and MED17.5.
Fuel split
Engines
| 1.0 | Petrol | 5 |
| 1.0 5MT - 60hp | Petrol | 1 |
ECUs
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
Are you a driver?
Request a free quote for your vehicle and we'll tell you the gains you can expect.
Request a quoteAre you a workshop or professional?
Sign up, buy credits and download the optimised file instantly.
Log in as a professionalFrequently asked questions
How much does a naturally aspirated engine gain?
Considerably less than a turbocharged one — there is no boost to adjust. We are honest about this: expect refinement in delivery, not a large power figure.
Is it the same as the VW Up and Škoda Citigo?
They share platform and mechanicals, sold under three brands. Our experience with one applies directly to the others.
Is it worth doing at all then?
For many owners yes: on a car this light, throttle response and delivery improve noticeably in everyday driving.
