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Mercedes-Benz A 45 AMG S 421hp

W177 - 2018 ->

421 Original HP
470 Modified HP
500 Original NM
620 Modified NM
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Mercedes-Benz A

Mercedes-Benz A W177 - 2018 -> 45 AMG S 421hp

Key Specifications

Generazione W177 - 2018 ->
Carburante Petrol
Codice motore M139
ECU Bosch MG1CP002
Rapporto compressione 9.0:1
Alesaggio x Corsa 83.0 X 92.0 mm
Power 421 → 470 hp +49 hp
Torque 500 → 620 Nm +120 Nm
Power
470 HP
+49 HP (+11.6%)
Original 421 HP
Stage 1 470 HP
Torque
620 NM
+120 NM (+24%)
Original 500 NM
Stage 1 620 NM

Power Graph

Original Power 421HP
Original Torque 500Nm
Power After Remap 470HP
Torque After Remap 620Nm

Discover Our Tuning Solutions

Frequently Asked Questions - Mercedes-Benz A

The cost of Stage 1 tuning for Mercedes-Benz A 45 AMG S 421hp varies depending on the ECU (Bosch MG1CP002) and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for Mercedes-Benz A typically takes 1-2 hours of work. Time may vary depending on the ECU type.

Yes, our Stage 1 tunes are developed respecting the engine's safety margins. The power increase from 421 to 470 HP (+12%) is within safe parameters.

With Stage 1 tuning, Mercedes-Benz A goes from 421 HP to 470 HP (+49 HP) and from 500 Nm to 620 Nm (+120 Nm).

Stage 1 remapping takes it from 421 HP to 470 HP (+49 HP, +12%) and torque from 500 Nm to 620 Nm (+120 Nm). These figures refer to the standard engine, with no hardware modifications.

A remap changes the factory calibration, so on a vehicle still under manufacturer warranty it may affect coverage on powertrain components. Performance tuning keeps all emission systems working; deactivating emission devices such as DPF, EGR or AdBlue is not road-legal in the EU and UK and is intended for off-road, motorsport or export use only.

With a normal driving style consumption usually stays the same or drops slightly: the extra torque at low rpm means less throttle for the same speed. Consumption goes up only if you actually use the additional power.

Yes. The original file is read and stored before any modification, so the vehicle can be returned to the factory calibration at any time.

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Mercedes-Benz
Mercedes-Benz A 45 AMG S 421hp
+49 HP
470 HP