BMW 5 Series (G30) 2017> 530i (B46B20O0) 249bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the BMW 5 Series 530i (B46B20O0) 249bhp (2017>): 291bhp and 457Nm expected from a standard 249bhp and 350Nm, up to +42bhp and +107Nm. It keeps most of the Stage 1 gain (Stage 1 is 305bhp and 466Nm) and is tuned with economy in mind: the choice if you want the performance and care what each tank costs.
Choose your map
Stage 1 Eco remap figures
Stage 1 Eco is performance with economy in mind. It keeps most of the Stage 1 gain, so the car still pulls well, but the map is shaped for efficient, relaxed driving rather than flat-out output. It is above the standard figures. We don't quote mpg, because economy depends on the car and how it is driven.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 249 bhp | 291 bhp | +42 bhp |
| Torque | 350 Nm | 457 Nm | +107 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 249 bhp | 350 Nm | |
| Stage 1Maximum software-only performance | 305 bhp | 466 Nm | +56 bhp +116 Nm |
| Stage 1 EcoPerformance with economy in mind | 291 bhp | 457 Nm | +42 bhp +107 Nm |
| Eco mapEconomy first | 287 bhp | 451 Nm | +38 bhp +101 Nm |
Who is the Stage 1 Eco map for?
- Naturally aspirated owners who want a little more response and a more efficient, relaxed drive. Every map we list stays above standard.
- Drivers who want the small gain on offer without chasing peak output.
- Anyone who would otherwise take the full Stage 1 map but wants it tuned with economy in mind.
How Stage 1 Eco compares with Stage 1
Full Stage 1 on this BMW 5 Series is expected to give 305bhp and 466Nm (+56bhp, +116Nm). The Stage 1 Eco keeps about 75% of that power gain and 92% of the torque gain, so you get 291bhp and 457Nm: 14bhp less and 9Nm less than Stage 1, with the map shaped for efficient, relaxed driving, so it suits you if you want the pull and care about running costs. Both sit above the standard 249bhp and 350Nm.
What this means for your 5 Series
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in 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 Eco questions
How much power does the Stage 1 Eco map give the BMW 5 Series 530i (B46B20O0) 249bhp?
We expect 291bhp and 457Nm against 249bhp and 350Nm as standard: up to +42bhp and +107Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
How does Stage 1 Eco differ from Stage 1 on this engine?
Full Stage 1 is expected to give 305bhp and 466Nm. Stage 1 Eco gives 14bhp less and 9Nm less, in exchange for a map shaped with economy in mind. It still sits above the standard figures.
Is Stage 1 Eco or the Eco map better for me?
Choose Stage 1 Eco if you want the performance (291bhp and 457Nm) and still care about running costs. Choose the Eco map (287bhp and 451Nm) if economy matters more than pace.
Will the Stage 1 Eco map save fuel?
It is tuned with economy in mind while keeping most of the Stage 1 performance. We do not quote mpg figures, because economy depends on the car, its condition and how it is driven.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.