Mercedes CLC 220 CDI (2.1) 150 hp — Stage 1 file (+30 hp)

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Chip tuning for Mercedes CLC 220 CDI (2.1) 150 hp ECU

Mercedes CLC (2004) 220 CDI (2.1) 150 hp — premium diesel 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 150 to 180 hp (+30 hp, +20%) and torque from 340 to 400 Nm (+60 Nm). ECU — Bosch EDC16C2. Flashing method: OBD or Bench depending on the unit's protection. The 2004 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. Mid-range Mercedes diesels are a mainstream chip tuning subject in both the commercial and passenger-car segments.

The Mercedes community in Europe has a large pool of available Stage files for the standard models. Stage 1 on Mercedes often requires refreshing the adaptations after the flash. Stage 1 on mid-range Mercedes diesels delivers a noticeable torque gain. Mid-range Mercedes engines are a premium segment with a conservative factory calibration, and Stage 1 preserves engine life. Mercedes prioritises smooth running, and Stage 1 preserves the engine's character. The Mercedes factory calibration allows a confident move to Stage 1 without hardware changes. The Mercedes community is active in Europe, with a large pool of available Stage files.

Frequently asked questions

What is the Stage 1 effect on the Mercedes CLC 220 CDI (2.1) 150 hp?

After Stage 1 the power of the Mercedes CLC 220 CDI (2.1) 150 hp rises from 150 to 180 hp, a gain of 30 hp (+20%). Torque rises from 340 to 400 Nm (+60 Nm).

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

Stage 1 is a software optimization of the factory ECU firmware of the Mercedes CLC with no hardware changes. The injection, boost, ignition-timing and torque maps are reprogrammed. The gain is +30 hp with no hardware changes.

What is the risk of Stage 1 on the Mercedes CLC 220 CDI (2.1) 150 hp?

A remap of the Mercedes CLC 220 CDI (2.1) 150 hp is safe — the factory calibration in this mid-range class is conservative, leaving genuine headroom for Stage 1 with no hardware changes.

What is Stage 2 for the Mercedes CLC 220 CDI (2.1) 150 hp?

Stage 2 on the Mercedes CLC 220 CDI (2.1) 150 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

What ECU platform does the Mercedes CLC 220 CDI (2.1) 150 hp use?

The Mercedes CLC 220 CDI (2.1) 150 hp is fitted with the Bosch EDC16C2 ECU. The read method depends on the unit's protection: OBD, Bench via BDM, or Boot mode.

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

After remapping the Mercedes CLC, 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 CLC?

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

Before Stage 1 the original of the Mercedes CLC 220 CDI (2.1) 150 hp is read out and saved — returning to the factory state is possible at any time.

How much does chip tuning the Mercedes CLC 220 CDI (2.1) 150 hp cost?

The remap price for the Mercedes CLC 220 CDI (2.1) 150 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