Expected gains of +25 BHP and +100 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Mercedes-Benz CLS 53 AMG 435hp? A Stage 1 remap can take this C257 - 2021 -> petrol mhev engine from 435 BHP to 460 BHP and from 520 Nm to 620 Nm of torque (naturally aspirated). This engine scores 4.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz CLS can achieve.
The Mercedes-Benz CLS 53 AMG 435hp is a 3.0L naturally aspirated petrol mhev engine producing 435 BHP and 520 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 460 BHP and 620 Nm — a gain of around 25 BHP (6%) and 100 Nm (19%).
This engine has limited remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. 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 |
|---|---|---|---|---|---|
| 220d (2.0D) 194hp | 194 → 225 | +31 | 400 → 480 |
| +80 |
| Good (7/10) |
| 400d (3.0D) 330hp | 330 → 380 | +50 | 700 → 820 | +120 | Good (7/10) |
| 450 (3.0T) 367hp | 367 → 420 | +53 | 500 → 620 | +120 | Good (7/10) |
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.