BMW X3 (G01) 2018> xDrive30i 249bhp remap figures
The BMW X3 xDrive30i 249bhp (2018>) is a petrol 2.0L model making 249bhp and 350Nm as standard. After a Stage 1 ECU remap we expect 285bhp and 452Nm - up to 36bhp and 102Nm more than stock.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 249 bhp | 285 bhp | +36 bhp |
| Torque | 350 Nm | 452 Nm | +102 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 249 bhp | 350 Nm | |
| Stage 1Maximum software-only performance | 285 bhp | 452 Nm | +36 bhp +102 Nm |
| Stage 1 EcoPerformance with economy in mind | 276 bhp | 444 Nm | +27 bhp +94 Nm |
| Eco mapEconomy first | 273 bhp | 439 Nm | +24 bhp +89 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your X3
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
Engine management is by a Bosch MG1CS003 unit. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the BMW X3 xDrive30i 249bhp?
We expect 285bhp and 452Nm against 249bhp and 350Nm as standard: up to +36bhp and +102Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the BMW X3 xDrive30i 249bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 276bhp and 444Nm expected. The Eco map is economy first: 273bhp and 439Nm. Both still sit above the standard 249bhp and 350Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More BMW X3 figures
Other petrol variants
- xDrive20i 181bhp 2018>
- M40i 349bhp 2018>
- X3 M Competition 503bhp 2019-2020
- X3 M Competition 503bhp 2021>
All petrol X3 (G01) variants · X3 (G01) 2018-2024 overview · All BMW figures