Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm — Stage 1 file (+60 hp)

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Chip tuning for Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm ECU

Mercedes Actros (I (1995+)) OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm — premium diesel engine of the commercial segment of the Mercedes-Benz Group AG (Mercedes-Benz, AMG, Maybach, Smart, EQ) group (Германия, 1926). Stage 1 chip tuning raises power from 421 to 481 hp (+60 hp, +14%) and torque from 2100 to 2440 Nm (+340 Nm). The 1995 generation — first-generation CDI/TDI/HDi diesels with relatively simple ECU protection; OBD reading works directly.

The Mercedes three-pointed star symbolises dominance on land, at sea and in the air. 4MATIC all-wheel drive is Mercedes' signature system, fitted to most models. The Mercedes-Benz Group AG (Daimler AG until 2022) comprises Mercedes-Benz, AMG, Maybach, Smart and the EQ line. Top Mercedes diesels sit at the power ceiling of the diesel segment, and Stage 2 requires hardware. The factory calibration on Mercedes diesels is conservative, leaving headroom for Stage 1 while preserving engine life. DPF/SCR with AdBlue is standard on all Euro-6 Mercedes diesels.

In the Mercedes commercial segment, Stage 1 focuses on torque. AMG engines confidently reach Stage 2 with a downpipe + intake. Mercedes is one of the most protected brands in the chip tuning industry in terms of encryption. Bench reading is a mandatory procedure for modern AMG models. Top AMG engines sit at the Mercedes power ceiling, and the gain is significant. AMG engines are a well-known base once hardware is added (downpipe + intake + intercooler). Brabus is a premium alternative to AMG for the top models.

Frequently asked questions

How many horsepower does the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm reach after a remap?

The Stage 1 gain for the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm is 60 hp (+14%) over the stock 421 hp, for a total of 481 hp. Torque rises from 2100 to 2440 Nm (+340 Nm).

What is Stage 1 chip tuning for the Mercedes Actros?

Stage 1 on the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +60 hp with no hardware changes.

What does Stage 1 give on the top-spec Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm?

Stage 1 for the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm unlocks the potential built in by the factory but artificially capped to meet mass-market targets. A base of 750-800 hp is achievable once hardware is added.

How does Stage 2 differ from Stage 1 on the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm?

Stage 2 on the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

Does Stage 1 void the warranty on the Mercedes Actros?

Stage 1 on the Mercedes Actros voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.

How quickly is chip tuning of the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm done?

The full remap cycle for the Mercedes Actros — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.

Can you return to stock after Stage 1 on the Mercedes Actros?

The original Mercedes Actros ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.

How much does Stage 1 cost for the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm?

The cost of Stage 1 for the Mercedes Actros OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.

Last updated: 31.08.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno