Audi A6 45 TFSI (2.0) MHEV 265 hp — Stage 1 file (+39 hp)

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Chip tuning for Audi A6 45 TFSI (2.0) MHEV 265 hp ECU

Audi A6 (2018 - C8) 45 TFSI (2.0) MHEV 265 hp — premium petrol engine of the passenger segment of the Volkswagen Group (VAG) group (Германия, 1909). Stage 1 chip tuning raises power from 265 to 304 hp (+39 hp, +15%) and torque from 370 to 420 Nm (+50 Nm). ECU — Siemens/Continental Simos19.7. Flashing method: OBD or Bench depending on the unit's protection. A 2018 petrol engine — the latest era of encrypted firmware; OBD access is available on production units, Bench on sport models.

Audi's signature slogan is “Vorsprung durch Technik” (Progress through Technology). Audi is a premium manufacturer from Ingolstadt (Bavaria), founded in 1909 as Audiwerke August Horch & Cie. Audi's petrol range is badged TFSI, and the diesel range TDI. Audi S models are performance variants with turbo engines, a milder step than RS.

On Audi, Stage 1 usually fits within the standard turnaround time. The Audi community is renowned for its active tuning scene and a huge library of available Stage files. APR and Revo are the leading tuning brands for Audi, right up to Stage 1+. High-output Audi engines sit in the premium segment, with solid headroom for Stage 1. Audi S models are the milder performance step between the standard cars and the RS range. The premium Audi segment runs a high-output platform with Stage 2 potential.

Frequently asked questions

How many horsepower does the Audi A6 45 TFSI (2.0) MHEV 265 hp reach after a remap?

Stage 1 chip tuning on the Audi A6 45 TFSI (2.0) MHEV 265 hp boosts engine output by 39 hp: from 265 to 304 hp. Torque rises from 370 to 420 Nm (+50 Nm).

What changes in the Audi A6 ECU after Stage 1?

Stage 1 is a software optimization of the factory ECU firmware of the Audi A6 with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +39 hp with no hardware changes.

Do you need hardware changes for Stage 1 on the Audi A6?

Stage 1 on the powerful Audi A6 45 TFSI (2.0) MHEV 265 hp “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).

What is Stage 2 for the Audi A6 45 TFSI (2.0) MHEV 265 hp?

Stage 2 for the Audi A6 45 TFSI (2.0) MHEV 265 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 ECU platform does the Audi A6 45 TFSI (2.0) MHEV 265 hp use?

The Audi A6 45 TFSI (2.0) MHEV 265 hp is fitted with the Siemens/Continental Simos19.7 ECU. The read method depends on the unit's protection: OBD, Bench via BDM, or Boot mode.

Does the factory warranty of the Audi A6 remain valid after Stage 1?

After remapping the Audi A6, the official factory warranty on the engine and gearbox is lost (this applies to any manufacturer when the ECU is modified). CHIPOK guarantees the quality of the calibration and free revisions.

How long is the wait for a Stage 1 remap for the Audi A6?

Reading and writing via OBD takes 25-30 minutes on the Audi A6. Bench reading (BDM/JTAG) takes about 60 minutes plus refitting. Remote file processing at CHIPOK takes 5-30 minutes.

How do you roll back to the factory firmware of the Audi A6?

Before Stage 1 the original of the Audi A6 45 TFSI (2.0) MHEV 265 hp is read out and saved — returning to the factory state is possible at any time.

How much does chip tuning the Audi A6 45 TFSI (2.0) MHEV 265 hp cost?

The remap price for the Audi A6 45 TFSI (2.0) MHEV 265 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.

Last updated: 30.08.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno