Mercedes S 400d (2.9) 340 hp — Stage 1 file (+60 hp)
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Stage 1 file for Mercedes S 400d (2.9) 340 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes S 400d (2.9) 340 hp ECU
Mercedes S (2014 - W222) 400d (2.9) 340 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 340 to 400 hp (+60 hp, +18%) and torque from 700 to 800 Nm (+100 Nm). This engine ships with different ECU variants: Bosch MD1CP001, Bosch VGS3-NAG3. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. In the CHIPOK database: 2 configurations · 2 ECU variants. A diesel built in 2014 — the Tricore ECU era; OBD flash works on most production revisions.
4MATIC all-wheel drive is Mercedes' signature system, fitted to most models. The Mercedes-Benz Group AG (Daimler AG until 2022) comprises Mercedes-Benz, AMG, Maybach, Smart and the EQ line. AMG is the performance division of Mercedes (since 1967), building engines on the 'one man, one engine' principle in Affalterbach. The factory calibration on Mercedes diesels is conservative, leaving headroom for Stage 1 while preserving engine life. DPF/SCR with AdBlue is standard on all Euro-6 Mercedes diesels. Mid-generation diesel models use standard OBD read/write.
In the Mercedes commercial segment, Stage 1 focuses on torque. Mercedes is one of the most protected brands in the chip tuning industry in terms of encryption. 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 horsepower does Stage 1 add for the Mercedes S 400d (2.9) 340 hp?
Stage 1 chip tuning on the Mercedes S 400d (2.9) 340 hp boosts engine output by 60 hp: from 340 to 400 hp. Torque rises from 700 to 800 Nm (+100 Nm).
What changes in the Mercedes S ECU after Stage 1?
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 +60 hp with no hardware changes.
Do you need hardware changes for Stage 1 on the Mercedes S?
Stage 1 on the powerful Mercedes S 400d (2.9) 340 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 400d (2.9) 340 hp?
Stage 2 for the Mercedes S 400d (2.9) 340 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 400d (2.9) 340 hp built with?
The Mercedes S 400d (2.9) 340 hp comes with 2 ECU variants: Bosch MD1CP001, Bosch VGS3-NAG3. 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 400d (2.9) 340 hp is read out and saved — returning to the factory state is possible at any time.
How much does chip tuning the Mercedes S 400d (2.9) 340 hp cost?
The remap price for the Mercedes S 400d (2.9) 340 hp is dynamic and is calculated in the CHIPOK calculator based on the selected options. A credit-based payment model, with no subscription fees.