BMW 5 Series (G30) 2017> 525d 227bhp remap figures
Thinking of remapping a BMW 5 Series 525d 227bhp? The standard car makes 227bhp and 500Nm; with a Stage 1 remap from our Leicester workshop we expect around 285bhp and 561Nm, up to +58bhp and +61Nm.
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 | 227 bhp | 285 bhp | +58 bhp |
| Torque | 500 Nm | 561 Nm | +61 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 227 bhp | 500 Nm | |
| Stage 1Maximum software-only performance | 285 bhp | 561 Nm | +58 bhp +61 Nm |
| Stage 1 EcoPerformance with economy in mind | 271 bhp | 556 Nm | +44 bhp +56 Nm |
| Eco mapEconomy first | 266 bhp | 553 Nm | +39 bhp +53 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your 5 Series
Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.
The ECU recorded for this variant is a Bosch MD1CP002. 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 5 Series 525d 227bhp?
We expect 285bhp and 561Nm against 227bhp and 500Nm as standard: up to +58bhp and +61Nm. 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 5 Series 525d 227bhp?
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: 271bhp and 556Nm expected. The Eco map is economy first: 266bhp and 553Nm. Both still sit above the standard 227bhp and 500Nm.
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 5 Series figures
Other diesel variants
All diesel 5 Series (G30) variants · 5 Series (G30) 2017-2020 overview · All BMW figures