Mercedes-Benz GLC 2019 - 2023 43 AMG 390hp

Real standard and upgraded performance figures for the 43 AMG 390hp engine in the Mercedes-Benz GLC 2019 - 2023.

These are real standard and Stage 1 (and where available, Stage 2) figures for the Mercedes-Benz GLC 2019 - 2023 43 AMG 390hp — not a generic estimate for the model range.

Horsepower (HP)Torque (Nm)
Standard390520
Stage 1420620
Stage 2435670
Make
Mercedes-Benz
Model
GLC
Generation
2019 - 2023
Engine
43 AMG 390hp
Fuel type
Turbo-Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Mercedes-Benz GLC 2019 - 2023 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 GLC 2019 - 2023 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.