Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp — Stage 1 file (+29 hp)

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Chip tuning for Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp ECU

Mercedes S (2014 - W222) 300 BlueTEC Hybrid (2.1) 231 hp — premium hybrid engine of the passenger segment of the Mercedes-Benz Group AG (Mercedes-Benz, AMG, Maybach, Smart, EQ) group (Германия, 1926). Stage 1 chip tuning raises power from 231 to 260 hp (+29 hp, +13%) and torque from 540 to 600 Nm (+60 Nm). This engine ships with different ECU variants: Delphi CPC2, Delphi CRD3.7A, Bosch DCU17PC01, Bosch EDC17CP57, Siemens/Continental VGS4-NAG2, Siemens/Continental VGSx-NAG2, Delphi CRD3. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. In the CHIPOK database: 7 configurations · 7 ECU variants.

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. On a Mercedes PHEV, the ICE part is tuned just like a pure combustion engine. PHEV variants are available across most Mercedes series, badged with an 'e' in the index. EQ Boost is Mercedes's proprietary 48V MHEV technology with an integrated starter-generator.

The Mercedes community in Europe has a large pool of available Stage files for the standard models. On Mercedes up to the recent generation, Stage 1 OBD flash is available. The AMG community is active in Germany, but the protection is the toughest in the industry, so Stage 1 on AMG usually requires Bench. High-output Mercedes engines are premium-class with solid headroom for Stage 1. 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.

Frequently asked questions

How much does the power of the Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp increase after Stage 1?

Stage 1 for the Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp adds +29 hp — power increases from 231 to 260 hp (+13%). Torque rises from 540 to 600 Nm (+60 Nm).

What does a Stage 1 remap of the Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp include?

Stage 1 is a software optimization of the factory ECU firmware of the Mercedes S with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +29 hp with no hardware changes.

Do you need hardware changes for Stage 1 on the Mercedes S?

Stage 1 on the powerful Mercedes S 300 BlueTEC Hybrid (2.1) 231 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 Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp?

Stage 2 for the Mercedes S 300 BlueTEC Hybrid (2.1) 231 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.

Which control units is the Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp built with?

The Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp comes with 7 ECU variants: Delphi CPC2, Delphi CRD3.7A, Bosch DCU17PC01, Bosch EDC17CP57, Siemens/Continental VGS4-NAG2, Siemens/Continental VGSx-NAG2, Delphi CRD3. Calibration is done for the specific unit after the revision is identified.

Does the factory warranty of the Mercedes S remain valid after Stage 1?

After remapping the Mercedes S, 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 Mercedes S?

Reading and writing via OBD takes 25-30 minutes on the Mercedes S. 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 Mercedes S?

Before Stage 1 the original of the Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp is read out and saved — returning to the factory state is possible at any time.

How much does chip tuning the Mercedes S 300 BlueTEC Hybrid (2.1) 231 hp cost?

The remap price for the Mercedes S 300 BlueTEC Hybrid (2.1) 231 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: 31.08.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno