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Seat Leon ECU Tuning: Stage 1 Gains by Engine
Dyno-tested Stage 1 results for every Seat Leon engine we have on the bench. Pick your engine for the full page with ECUs, notes and services, or upload your file straight away.
Generations covered: Leon 1PLeon FR
Stage 1 gains by engine
Best Stage 1 result per engine family on the power variants this model carries; the table below lists the versions matched exactly.
| Engine | Stock | HP Gain | Torque Gain | Details |
|---|---|---|---|---|
| 1.2 TSI petrol | 86–105 hp | from +21 to +27 hp | +45 Nm | Engine page → |
| 1.4 TSI petrol | 122–180 hp | from +21 to +37 hp | +58 Nm | Engine page → |
| 1.5 TSI petrol | 130–150 hp | from +21 to +29 hp | +58 Nm | Engine page → |
| 1.6 TDI diesel | 75–115 hp | from +27 to +41 hp | +53 Nm | Engine page → |
| 1.8 TSI petrol | 160–192 hp | from +26 to +42 hp | +65 Nm | Engine page → |
| 2.0 TDI diesel | 102–204 hp | from +27 to +63 hp | +118 Nm | Engine page → |
| 2.0 TFSI petrol | 200–211 hp | from +42 to +51 hp | +72 Nm | Engine page → |
| 2.0 TSI petrol | 180–310 hp | from +32 to +69 hp | +95 Nm | Engine page → |
Figures are dyno-tested averages and may vary with hardware condition and fuel quality.
Measured by version
Versions of this model whose ECU and stock power match a dyno row exactly: the figure is the one measured on that engine, not a family average.
| Version | Engine | ECU | Stock | HP Gain | Torque Gain | Order |
|---|---|---|---|---|---|---|
| Seat Leon petrol | 2.0 TSI | SIMOS 18 | 280 hp | +85 hp 365 hp · +30% | +120 Nm | Order file → |
| Seat Leon petrol | 2.0 TFSI | MED9.1 | 185 hp | +65 hp 250 hp · +35% | +90 Nm | Order file → |
| Seat Leon petrol | 2.0 TFSI | MED9.1 | 240 hp | +65 hp 305 hp · +27% | +95 Nm | Order file → |
| Seat Leon petrol | 2.0 TFSI | MED9.1 | 241 hp | +65 hp 306 hp · +27% | +95 Nm | Order file → |
| Seat Leon diesel | EDC16U34 | 90 hp | +50 hp 140 hp · +56% | +110 Nm | Order file → | |
| Seat Leon | DQ200 | 160 hp | +50 hp 210 hp · +31% | +70 Nm | Order file → | |
| Seat Leon diesel | 2.0 TDI | EDC17C74 | 150 hp | +42 hp. 192 hp · +28% | +84 Nm | Order file → |
| Seat Leon 1P diesel | 1.6 TDI | PCR 2.1 | 105 hp | +41 hp. 146 hp · +39% | n/a | Order file → |
| Seat Leon diesel | EDC15P | 130 hp | +40 hp 170 hp · +31% | +80 Nm | Order file → | |
| Seat Leon petrol | 1.4 TSI | MED17.5.21 | 140 hp | +40 hp 180 hp · +29% | +70 Nm | Order file → |
| Seat Leon petrol | 2.0 TSI | MG1CS111 | 190 hp | +40 hp. 230 hp · +21% | +69 Nm | Order file → |
| Seat Leon petrol | 2.0 TSI | MG1CS111 | 200 hp | +40 hp. 240 hp · +20% | +69 Nm | Order file → |
| Seat Leon diesel | 2.0 TDI | EDC17C46 | 140 hp | +37 hp. 177 hp · +26% | +74 Nm | Order file → |
| Seat Leon diesel | 2.0 TDI | EDC17C64 | 150 hp | +37 hp. 187 hp · +25% | +79 Nm | Order file → |
| Seat Leon diesel | 2.0 TDI | EDC17CP14 | 170 hp | +37 hp. 207 hp · +22% | +63 Nm | Order file → |
| Seat Leon diesel | EDC16U34 | 105 hp | +35 hp 140 hp · +33% | +70 Nm | Order file → | |
| Seat Leon petrol | 1.4 TSI | MED17.5.21 | 110 hp | +35 hp 145 hp · +32% | +50 Nm | Order file → |
| Seat Leon diesel | EDC16U34 | 140 hp | +35 hp 175 hp · +25% | +75 Nm | Order file → | |
| Seat Leon diesel | EDC15P | 150 hp | +35 hp 185 hp · +23% | +90 Nm | Order file → | |
| Seat Leon petrol | ME7.5 | 225 hp | +35 hp 260 hp · +16% | +80 Nm | Order file → | |
| Seat Leon diesel | 2.0 TDI | EDC17C46 | 170 hp | +32 hp. 202 hp · +19% | +69 Nm | Order file → |
| Seat Leon diesel | 2.0 TDI | PPD1.2 | 170 hp | +32 hp. 202 hp · +19% | +69 Nm | Order file → |
| Seat Leon | DQ250 MQB | 184 hp | +31 hp 215 hp · +17% | +80 Nm | Order file → | |
| Seat Leon diesel | EDC15V | 90 hp | +30 hp 120 hp · +33% | +69 Nm | Order file → | |
| Seat Leon diesel | EDC15P | 110 hp | +30 hp 140 hp · +27% | +65 Nm | Order file → | |
| Seat Leon diesel | EDC15V | 110 hp | +30 hp 140 hp · +27% | +65 Nm | Order file → | |
| Seat Leon petrol | ME7.5 | 180 hp | +30 hp 210 hp · +17% | +75 Nm | Order file → | |
| Seat Leon diesel | 2.0 TDI | EDC16U1 | 140 hp | +28 hp. 168 hp · +20% | +69 Nm | Order file → |
| Seat Leon petrol | 1.5 TSI | MG1CS011 | 130 hp | +25 hp. 155 hp · +19% | +51 Nm | Order file → |
| Seat Leon petrol | 1.5 TSI | MG1CS011 | 135 hp | +25 hp. 160 hp · +19% | +51 Nm | Order file → |
| Seat Leon petrol | 1.5 TSI | MG1CS011 | 150 hp | +25 hp. 175 hp · +17% | +45 Nm | Order file → |
| Seat Leon petrol | 2.0 TFSI | MED9.1 | 310 hp | +20 hp 330 hp · +6% | +50 Nm | Order file → |
| Seat Leon petrol | ME7.5.10 | 75 hp | +10 hp 85 hp · +13% | +14 Nm | Order file → | |
| Seat Leon petrol | IAW 4HV | 80 hp | +10 hp 90 hp · +13% | +14 Nm | Order file → | |
| Seat Leon petrol | IAW 4HV | 85 hp | +10 hp 95 hp · +12% | +15 Nm | Order file → | |
| Seat Leon petrol | ME7.5 | 125 hp | +10 hp 135 hp · +8% | +15 Nm | Order file → | |
| Seat Leon petrol | 2.0 TFSI | MED9.5.10 | 150 hp | +10 hp 160 hp · +7% | +15 Nm | Order file → |
24 more versions of the Seat Leon are in our catalogue: we read their ECU and remap them, the dyno figure is not published yet. Upload your file. Order file →
Measured here, tunable everywhere
The Seat Leon engines listed above are the ones we have run on the dyno, so the figures on their pages are readings rather than software estimates. They are not the limit of what we tune: every ECU, engine and model we can read can be remapped for power, Seat Leon or otherwise. If your engine is not on this list, upload the original file anyway.
Every figure here was measured on this engine at a stock power your car has, sometimes on another car fitted with the same unit; the per-version table below marks only the exact matches.
Frequently Asked Questions
Which Seat Leon engines can be remapped?
The 8 engines in the table above were measured on our dyno: 1.2 TSI, 1.4 TSI, 1.5 TSI, 1.6 TDI, 1.8 TSI, 2.0 TDI, 2.0 TFSI and 2.0 TSI. Other Seat Leon engines can be remapped too when we can read the ECU - the table is what we publish, not the limit of the service.
How much power does a Stage 1 add on a Seat Leon?
Between +10 and +85 hp depending on the engine; the best result measured is +85 hp on the 2.0 TSI. Every figure is a dyno reading on stock hardware, not an estimate.
Do I have to send the Seat Leon ECU?
No. Read the original file with your tool (KESS3, Autotuner, CMD, Dimsport, PCMTuner and others), upload it, and the tuned file comes back in 15-20 minutes to write into the car. Only the file travels.
Order your Seat Leon tuning file
Upload your original ECU file and receive a professional calibration in 15-20 minutes.
Tune Your File →v4.31.23