BMW X3 (E83) 25 i (192 hp) remapping
- Fuel
- Petrol
- Years
- 2003 - 2011
- ECU
- Siemens MS45 / Siemens MSV70
- Method
- Through the OBD port
Stage 1
BMW X3 (E83) 25 i (192 hp)
Power
+13 hp +7 %
Torque
+20 Nm +8 %
| Power | Torque | |
|---|---|---|
| Stock | 192 hp | 245 Nm |
| Stage 1 | 205 hp | 265 Nm |
| Gain | +13 hp | +20 Nm |
E85 FlexFuel conversion
BMW X3 (E83) 25 i (192 hp)
Ethanol ECU tuning: a FlexFuel ECU map to run on E85 Superethanol, cheaper at the pump, with no add-on module.
This ECU tune adapts the engine to Superethanol, with no claimed power gain.
How the remap works
- You order for your vehicle Engine and VIN: the map is prepared for your ECU.
- You receive the REPROG dongle A Bluetooth box that plugs into the OBD port under the dashboard.
- The app saves the stock map With MyFlasher (iOS, Android), the dongle reads and keeps the factory map.
- You flash in a few minutes The Dynaparts map is loaded; going back to stock remains possible at any time.
Other X3 (E83) engines
| Engine | Stock | After remap | Gain | Details |
|---|---|---|---|---|
| 25 i (192 hp) Petrol E85 compatible | 192 hp245 Nm | 205 hp265 Nm | +13 hp+20 Nm | This page |
| 2.5 si (218 hp) Petrol E85 compatible | 218 hp250 Nm | 238 hp280 Nm | +20 hp+30 Nm | |
| 30 i (231 hp) Petrol E85 compatible | 231 hp300 Nm | 242 hp320 Nm | +11 hp+20 Nm | |
| 3.0 si (272 hp) Petrol E85 compatible | 272 hp320 Nm | 285 hp340 Nm | +13 hp+20 Nm | |
| 18d xDrive (143 hp) Diesel | 143 hp300 Nm | 210 hp370 Nm | +67 hp+70 Nm | |
| 2.0d / xDrive (177 hp) Diesel | 177 hp350 Nm | 210 hp430 Nm | +33 hp+80 Nm | |
| 30 sd (286 hp) Diesel | 286 hp580 Nm | 340 hp680 Nm | +54 hp+100 Nm | |
| 35d xDrive (286 hp) Diesel | 286 hp580 Nm | 340 hp680 Nm | +54 hp+100 Nm |
All X3 (E83) engines Parts compatible with this vehicle
Frequently asked questions
How does a remap with the REPROG pack work?
You plug the REPROG by Dynaparts Bluetooth OBD dongle into the vehicle's OBD port and install the MyFlasher app (iOS or Android). The dongle reads and saves the stock map, then loads the Dynaparts map for your engine. Flashing takes a few minutes, with no dismantling.
Why give my vehicle's VIN?
The map is prepared for your engine and ECU. The VIN (field E of the registration document) lets us check the exact vehicle version before shipping.
Can I go back to the stock map?
Yes. The stock map is saved during the first read and can be restored at any time from the app, in a few minutes.
What is the difference between Stage 1 and the E85 pack?
Stage 1 optimises injection, ignition and boost management on the original fuel. The E85 pack installs a FlexFuel map to run on E85 bioethanol, cheaper at the pump, without an add-on box.
Are the stated gains guaranteed?
Indicative figures measured on a stock vehicle in good maintenance condition: they may vary depending on engine condition, fuel and measurement conditions. ECU tuning changes the vehicle's specifications: remember to inform your insurer.
Indicative figures measured on a stock vehicle in good maintenance condition: they may vary depending on engine condition, fuel and measurement conditions. ECU tuning changes the vehicle's specifications: remember to inform your insurer.