Considering an ECU remap for your Mercedes-Benz S 350d 286hp? A Stage 1 remap can take this W222 - 2017 - 2019 diesel engine from 286 BHP to 380 BHP and from 600 Nm to 800 Nm of torque (turbocharged). This engine scores 8/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz S can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Mercedes-Benz S 350d 286hp is a 2.9L turbocharged diesel engine producing 286 BHP and 600 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 380 BHP and 800 Nm — a gain of around 94 BHP (33%) and 200 Nm (33%).
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.
Considerations: High tuned torque: check transmission torque capacity and service history.. Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.
Fuel economy note: economy gains unlikely at full power; depends on driving style.
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 |
|---|---|---|---|---|---|
| 400d 340hp | 340 → 410 | +70 | 700 → 840 | +140 | Good (7.5/10) |
| 450 - 367hp | 367 → 410 | +43 | 500 → 590 | +90 | Moderate (4.5/10) |
| 560 - 469hp | 469 → 570 | +101 | 700 → 820 | +120 | Moderate (5/10) |
| 63 AMG S 612hp | 612 → 690 | +78 | 900 → 950 | +50 | Limited (3.5/10) |
| 650 - 630hp | 630 → 690 | +60 | 1000 → 1100 | +100 | Limited (3.5/10) |
| 65 AMG 630hp | 630 → 690 | +60 | 1000 → 1100 | +100 | Limited (3.5/10) |
Get a personalised remap quote for your Mercedes-Benz S. 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.
