Considering an ECU remap for your BMW 5 Series 525d 231hp? A Stage 1 remap can take this G30/31 - 2016 - 2019 diesel engine from 231 BHP to 270 BHP and from 500 Nm to 575 Nm of torque (turbocharged). This engine scores 7/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW 5 Series can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The BMW 5 serie 525d 231hp is a 2.0L turbocharged diesel engine producing 231 BHP and 500 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 270 BHP and 575 Nm — a gain of around 39 BHP (17%) and 75 Nm (15%).
This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
From a technical perspective, the ECU is typically a Bosch EDC17 (likely), and the transmission is many variants use zf 8-speed automatic (where fitted); manuals also exist. at this torque level, transmission and driveline servicing history becomes especially important..
Considerations: High tuned torque: check transmission torque capacity and service history.
Fuel economy note: possible improvement with conservative driving.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|
| 518d 150hp | 150 → 190 | +40 | 350 → 400 | +50 | Excellent (8/10) |
| 520d 163hp | 163 → 220 | +57 | 400 → 480 | +80 | Good (7.5/10) |
| 520i 170hp | 170 → 220 | +50 | 250 → 310 | +60 | Moderate (5.5/10) |
| 520i 184hp | 184 → 250 | +66 | 290 → 440 | +150 | Good (6.5/10) |
| 520d 190hp | 190 → 220 | +30 | 400 → 480 | +80 | Good (7/10) |
| 530e IPerformance 252hp | 252 → 340 | +88 | 420 → 540 | +120 | Good (6.5/10) |
| 530I 252hp | 252 → 287 | +35 | 350 → 450 | +100 | Moderate (5.5/10) |
| 530d 265hp | 265 → 310 | +45 | 620 → 720 | +100 | Good (7/10) |
| 540d 320hp | 320 → 400 | +80 | 680 → 800 | +120 | Good (7.5/10) |
| 540I 340hp | 340 → 400 | +60 | 450 → 580 | +130 | Moderate (5.5/10) |
| M550d 400hp | 400 → 460 | +60 | 760 → 880 | +120 | Good (7/10) |
| M550I 462hp | 462 → 560 | +98 | 650 → 830 | +180 | Moderate (5.5/10) |
| M550I 530hp | 530 → 650 | +120 | 750 → 880 | +130 | Moderate (5/10) |
Get a personalised remap quote for your BMW 5 Series. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.
