Mercedes Axor 1833 326hp (240kW) 1300Nm — Stage 1 file (+50 hp)

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Chip tuning for Mercedes Axor 1833 326hp (240kW) 1300Nm ECU

Mercedes Axor (I (2005+)) 1833 326hp (240kW) 1300Nm — 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 326 to 376 hp (+50 hp, +15%) and torque from 1300 to 1495 Nm (+195 Nm). Diesel engines built in 2005 — the era of classic Common Rail without strong encryption.

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.

The Mercedes community in Europe has a large pool of available Stage files for the standard models. In the Mercedes commercial segment, Stage 1 focuses on torque. The AMG community is active in Germany, but the protection is the toughest in the industry, so Stage 1 on AMG usually requires Bench. On modern high-output Mercedes, Bench reading is often required because of the encryption. The Mercedes premium segment is a high-output platform with Stage 2 potential. High-output Mercedes engines are premium-class with solid headroom for Stage 1.

Frequently asked questions

How much does the power of the Mercedes Axor 1833 326hp (240kW) 1300Nm increase after Stage 1?

Stage 1 chip tuning on the Mercedes Axor 1833 326hp (240kW) 1300Nm boosts engine output by 50 hp: from 326 to 376 hp. Torque rises from 1300 to 1495 Nm (+195 Nm).

What changes in the Mercedes Axor ECU after Stage 1?

Stage 1 chip tuning of the Mercedes Axor is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +50 hp with no hardware changes.

Is Stage 1 safe on the high-output Mercedes Axor 1833 326hp (240kW) 1300Nm?

Stage 1 on the powerful Mercedes Axor 1833 326hp (240kW) 1300Nm “lifts” the factory limiters with no hardware changes. The gain is noticeable in the mid and upper range. There is headroom left for moving to Stage 2 (downpipe + intake + intercooler).

How much does Stage 2 add on the Mercedes Axor?

Stage 2 for the Mercedes Axor 1833 326hp (240kW) 1300Nm 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.

What happens to the Mercedes Axor warranty after chip tuning?

The factory warranty of the Mercedes Axor does not remain valid after Stage 1 — the manufacturer withdraws its obligations once the ECU software is changed. CHIPOK provides its own warranty on its work and support.

How long does remapping the Mercedes Axor take?

On the Mercedes Axor 1833 326hp (240kW) 1300Nm: OBD flash 25-30 minutes, Bench (if required) about an hour. The file processing itself takes 5-30 minutes once the original bin is received.

Is the original file kept when chip tuning the Mercedes Axor?

Yes, the original ECU firmware of the Mercedes Axor 1833 326hp (240kW) 1300Nm is kept and can be flashed back at any time. Returning to stock via OBD takes 25-30 minutes.

What is the price of a Stage 1 remap for the Mercedes Axor?

Stage 1 for the Mercedes Axor 1833 326hp (240kW) 1300Nm is paid for with CHIPOK credits (1 cr = 1 €). The final amount is set in the calculator, taking the extra options (off functions) into account.

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