Considering an ECU remap for your Mercedes-Benz CLS 350 306hp? A Stage 1 remap can take this C218 - 2010 - 2014 petrol engine from 306 BHP to 316 BHP and from 370 Nm to 385 Nm of torque (naturally aspirated). This engine scores 3.5/10 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 350 306hp is a 3.5L naturally aspirated petrol engine producing 306 BHP and 370 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 316 BHP and 385 Nm — a gain of around 10 BHP (3%) and 15 Nm (4%).
This engine has limited remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.
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 |
|---|
| 250 CDI 204hp | 204 → 240 | +36 | 500 → 550 | +50 | Good (6.5/10) |
| 350 CDI Bluetec 252hp | 252 → 300 | +48 | 620 → 700 | +80 | Good (7/10) |
| 350 CDI 265hp | 265 → 300 | +35 | 620 → 700 | +80 | Good (6.5/10) |
| 500 Bi-Turbo 407hp | 407 → 510 | +103 | 600 → 820 | +220 | Excellent (8/10) |
| 63 AMG Bi-Turbo 525hp | 525 → 620 | +95 | 700 → 900 | +200 | Good (7/10) |
| 63 AMG PPP 557hp | 557 → 620 | +63 | 720 → 900 | +180 | Moderate (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.
