Mercedes S 420 CDI 320 hp — Stage 1 file (+40 hp)
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Stage 1 file for Mercedes S 420 CDI 320 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes S 420 CDI 320 hp ECU
Mercedes S (2005 - W221) 420 CDI 320 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 320 to 360 hp (+40 hp, +12%) and torque from 730 to 820 Nm (+90 Nm). ECU — Bosch EDC16CP36. Flashing method: OBD or Bench depending on the unit's protection. The 2005 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. High-output Mercedes diesels are premium-class with an emphasis on torque, and Stage 1 is especially felt in Nm.
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. Stage 1 on Mercedes often requires refreshing the adaptations after the flash. 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
What is the Stage 1 effect on the Mercedes S 420 CDI 320 hp?
After Stage 1 the power of the Mercedes S 420 CDI 320 hp rises from 320 to 360 hp, a gain of 40 hp (+12%). Torque rises from 730 to 820 Nm (+90 Nm).
How does Stage 1 differ from stock on the Mercedes S?
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 +40 hp with no hardware changes.
Do you need hardware changes for Stage 1 on the Mercedes S?
The high-output Mercedes S 420 CDI 320 hp has a conservative factory calibration aimed at the mass market. Stage 1 unlocks the engine's real potential while turbo and injector life are preserved.
What is Stage 2 for the Mercedes S 420 CDI 320 hp?
Stage 2 on the Mercedes S 420 CDI 320 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
What ECU platform does the Mercedes S 420 CDI 320 hp use?
The Mercedes S 420 CDI 320 hp is fitted with the Bosch EDC16CP36 ECU. The read method depends on the unit's protection: OBD, Bench via BDM, or Boot mode.
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 420 CDI 320 hp is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the Mercedes S 420 CDI 320 hp cost?
The remap price for the Mercedes S 420 CDI 320 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.