Mercedes-Benz C W205 - 2018 - 2020 43 AMG 390hp

Real standard and upgraded performance figures for the 43 AMG 390hp engine in the Mercedes-Benz C W205 - 2018 - 2020.

The Mercedes-Benz C W205 - 2018 - 2020 43 AMG 390hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.

Horsepower (HP)Torque (Nm)
Standard390520
Stage 1420620
Stage 2435670
Make
Mercedes-Benz
Model
C
Generation
W205 - 2018 - 2020
Engine
43 AMG 390hp
Fuel type
Turbo-Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Mercedes-Benz C W205 - 2018 - 2020 43 AMG 390hp?

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 43 AMG 390hp make after tuning?

Standard output is 390 HP / 520 Nm; Stage 1 on this engine typically reaches 420 HP / 620 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Mercedes-Benz C W205 - 2018 - 2020 43 AMG 390hp 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 43 AMG 390hp 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.