Expected gains of +67 BHP and +100 Nm torque
Get Your Free Quote ↓Data under review — The figures shown for this engine variant are currently being verified. They may be updated as we refine our data.
Considering an ECU remap for your Mercedes-Benz CLS 400 - 333hp? A Stage 1 remap can take this C218 - 2014 - 2018 petrol engine from 333 BHP to 400 BHP and from 480 Nm to 580 Nm of torque (naturally aspirated). This engine scores 5.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz CLS can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Mercedes-Benz CLS 400 - 333hp is a 3.5L naturally aspirated petrol engine producing 333 BHP and 480 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 400 BHP and 580 Nm — a gain of around 67 BHP (20%) and 100 Nm (21%).
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 high, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.. High tuned torque: check transmission torque capacity and service history.
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 |
|---|---|---|---|---|---|
| 220 CDI 170hp | 170 → 220 | +50 | 400 → 500 | +100 | Good (7.5/10) |
| 250 CDI 204hp | 204 → 240 | +36 | 500 → 550 | +50 | Good (6.5/10) |
| 350 CDI 258hp | 258 → 290 | +32 | 620 → 690 | +70 | Good (6.5/10) |
| 500 - 408hp | 408 → 510 | +102 | 600 → 850 | +250 | Good (6.5/10) |
| 63 AMG 557hp | 557 → 660 | +103 | 720 → 1100 | +380 | Good (6.5/10) |
| 63 AMG S 585hp | 585 → 660 | +75 | 800 → 1100 | +300 | Moderate (5.5/10) |
Get a personalised remap quote for your Mercedes-Benz CLS. 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.