Considering an ECU remap for your BMW 5 Series 525 TDS 143hp? A Stage 1 remap can take this E34 diesel engine from 143 BHP to 175 BHP and from 260 Nm to 330 Nm of torque (turbocharged). This engine scores 7.5/10 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 525 TDS 143hp is a 2.5L turbocharged diesel engine producing 143 BHP and 260 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 175 BHP and 330 Nm — a gain of around 32 BHP (22%) and 70 Nm (27%).
This engine scores highly for 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 high, based on the percentage gain available from the factory output.
From a technical perspective, the ECU is typically a Bosch EDC17 (likely).
Considerations: Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.
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 |
|---|
| 524 TD 115hp | 115 → 140 | +25 | 220 → 262 | +42 | Excellent (8/10) |
| 525 TD 115hp | 115 → 140 | +25 | 245 → 285 | +40 | Good (7/10) |
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.
