Mercedes Axor 1840 401hp (295kW) 2000Nm — Stage 1 file (+59 hp)

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Chip tuning for Mercedes Axor 1840 401hp (295kW) 2000Nm ECU

Mercedes Axor (I (2005+)) 1840 401hp (295kW) 2000Nm — 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 401 to 460 hp (+59 hp, +15%) and torque from 2000 to 2300 Nm (+300 Nm). The 2005 generation — first-generation CDI/TDI/HDi diesels with relatively simple ECU protection; OBD reading works directly.

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. The Mercedes three-pointed star symbolises dominance on land, at sea and in the air. 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. Top Mercedes diesels sit at the power ceiling of the diesel segment, and Stage 2 requires hardware.

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. 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. Top AMG engines sit at the Mercedes power ceiling, and the gain is significant.

Frequently asked questions

What is the Stage 1 effect on the Mercedes Axor 1840 401hp (295kW) 2000Nm?

After Stage 1 the power of the Mercedes Axor 1840 401hp (295kW) 2000Nm rises from 401 to 460 hp, a gain of 59 hp (+15%). Torque rises from 2000 to 2300 Nm (+300 Nm).

How does Stage 1 differ from stock on the Mercedes Axor?

Stage 1 on the Mercedes Axor 1840 401hp (295kW) 2000Nm 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 +59 hp with no hardware changes.

What does Stage 1 give on the top-spec Mercedes Axor 1840 401hp (295kW) 2000Nm?

Stage 1 for the Mercedes Axor 1840 401hp (295kW) 2000Nm 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 Axor 1840 401hp (295kW) 2000Nm?

Stage 2 on the Mercedes Axor 1840 401hp (295kW) 2000Nm means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

Does Stage 1 void the warranty on the Mercedes Axor?

Stage 1 on the Mercedes Axor 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 Axor 1840 401hp (295kW) 2000Nm done?

The full remap cycle for the Mercedes Axor — 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 Axor?

The original Mercedes Axor 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 Axor 1840 401hp (295kW) 2000Nm?

The cost of Stage 1 for the Mercedes Axor 1840 401hp (295kW) 2000Nm 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