Mercedes-Benz CLS C218 - 2014 - 2018 350 CDI 258hp
Real standard and upgraded performance figures for the 350 CDI 258hp engine in the Mercedes-Benz CLS C218 - 2014 - 2018.
This page covers the 350 CDI 258hp as fitted to the Mercedes-Benz CLS C218 - 2014 - 2018 — the figures below reflect that specific engine, not the model as a whole.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 258 | 620 |
| Stage 1 | 290 | 690 |
| Stage 2 | 306 | 725 |
- Make
- Mercedes-Benz
- Model
- CLS
- Generation
- C218 - 2014 - 2018
- Engine
- 350 CDI 258hp
- Fuel type
- Turbo-Diesel
Frequently asked questions
Is Stage 1 tuning safe for the Mercedes-Benz CLS C218 - 2014 - 2018 350 CDI 258hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 350 CDI 258hp make after tuning?
Standard output is 258 HP / 620 Nm; Stage 1 on this engine typically reaches 290 HP / 690 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Mercedes-Benz CLS C218 - 2014 - 2018 350 CDI 258hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 350 CDI 258hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.