Renault Master 2.5 DCI 125 hp — Stage 1 file (+30 hp)

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Chip tuning for Renault Master 2.5 DCI 125 hp ECU

Renault Master (1997) 2.5 DCI 125 hp — mass-market diesel engine of the passenger segment of the Renault-Nissan-Mitsubishi Alliance group (Франция, 1899). Stage 1 chip tuning raises power from 125 to 155 hp (+30 hp, +24%) and torque from 300 to 400 Nm (+100 Nm). Diesel engines built in 1997 — the era of classic Common Rail without strong encryption.

Renault is a French carmaker, founded in 1899. Renault diesel engines are also used in Nissan, Dacia and Mercedes (the Citan/Vito run Renault engines).

The Renault community in France and Eastern Europe offers a large pool of ready-made Stage files. Within the Renault-Nissan Alliance, ECUs are partly standardised, so some files carry over between brands. On mid-range Renault diesels, Stage 1 delivers a noticeable torque gain. The Renault community in Eastern Europe offers a large pool of Stage files for dCi engines. Mid-range Renault engines are a mainstream chip tuning subject in France.

Frequently asked questions

How many horsepower does the Renault Master 2.5 DCI 125 hp reach after a remap?

Stage 1 for the Renault Master 2.5 DCI 125 hp adds +30 hp — power increases from 125 to 155 hp (+24%). Torque rises from 300 to 400 Nm (+100 Nm).

What does a Stage 1 remap of the Renault Master 2.5 DCI 125 hp include?

Stage 1 chip tuning of the Renault Master is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +30 hp with no hardware changes.

Can you do Stage 1 on the Renault Master 2.5 DCI 125 hp?

Yes, Stage 1 for the Renault Master 2.5 DCI 125 hp stays within the factory limits for boost pressure, knock and temperature. On a healthy engine with a serviced turbo and injectors there is no risk.

How much does Stage 2 add on the Renault Master?

Stage 2 for the Renault Master 2.5 DCI 125 hp 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 Renault Master warranty after chip tuning?

The factory warranty of the Renault Master 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 Renault Master take?

On the Renault Master 2.5 DCI 125 hp: 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 Renault Master?

Yes, the original ECU firmware of the Renault Master 2.5 DCI 125 hp 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 Renault Master?

Stage 1 for the Renault Master 2.5 DCI 125 hp 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