Mercedes Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm — Stage 1 file (+60 hp)
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Stage 1 file for Mercedes Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm ECU
Mercedes Arocs (I (2013+)) 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). A diesel built in 2013 — the Tricore ECU era; OBD flash works on most production revisions.
The Mercedes slogan is 'Das Beste oder nichts' ('The best or nothing'). Smart is Mercedes's city sub-brand, historically running Mitsubishi and Renault engines. Karl Benz is credited as the inventor of the automobile with the 1886 Patent-Motorwagen. Mercedes diesels have long been popular with the German police and taxi services. Mercedes diesel engines are fitted to passenger cars and commercial vehicles. BlueTEC is Mercedes's proprietary exhaust after-treatment system with an SCR catalyst and AdBlue.
AMG engines confidently reach Stage 2 with a downpipe + intake. 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. AMG Performance Studio is Mercedes's in-house tuning studio for bespoke projects. Bench reading is a mandatory procedure for modern AMG models.
Frequently asked questions
How much does the power of the Mercedes Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm increase after Stage 1?
Stage 1 chip tuning on the Mercedes Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm boosts engine output by 60 hp: from 421 to 481 hp. Torque rises from 2100 to 2440 Nm (+340 Nm).
What changes in the Mercedes Arocs ECU after Stage 1?
Stage 1 on the Mercedes Arocs 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 Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm?
On the top-spec Mercedes Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm engine, Stage 1 is the starting point before Stage 2 with a downpipe, intake and a larger intercooler. The mass-market factory calibration leaves substantial headroom for an aggressive software tune.
How does Stage 2 differ from Stage 1 on the Mercedes Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm?
Stage 2 for the Mercedes Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm is Stage 1 plus hardware changes: a downpipe, a larger intake and a performance intercooler. The gain is considerably higher, but it requires professional component selection.
Does Stage 1 void the warranty on the Mercedes Arocs?
Stage 1 on the Mercedes Arocs 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 Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm done?
The full remap cycle for the Mercedes Arocs — 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 Arocs?
The original Mercedes Arocs 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 Arocs OM471 SCR 12.8 (EU6) 421hp (310kW) 2100Nm?
The cost of Stage 1 for the Mercedes Arocs 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.