Mercedes X 350d 258 hp — Stage 1 file (+42 hp)
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Stage 1 file for Mercedes X 350d 258 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes X 350d 258 hp ECU
Mercedes X (2017) 350d 258 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 258 to 300 hp (+42 hp, +16%) and torque from 620 to 700 Nm (+80 Nm). This engine ships with different ECU variants: Delphi CPC2, Bosch EDC17CP57, Bosch VGS3-NAG3, Siemens/Continental VGS4-NAG2. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. In the CHIPOK database: 4 configurations · 4 ECU variants. A diesel built in 2017 — the Tricore ECU era; OBD flash works on most production revisions.
AMG is the performance division of Mercedes (since 1967), building engines on the 'one man, one engine' principle in Affalterbach. Mercedes is one of the most protected brands in the chip tuning industry in terms of encryption. Maybach is Mercedes's ultra-luxury sub-brand. Mid-generation diesel models use standard OBD read/write. Mercedes diesels are known for smooth, quiet running, a hallmark of the premium segment. Mercedes diesels have long been known for legendary reliability, with German taxi fleets running to million-kilometre mileages.
The AMG community is active in Germany, but the protection is the toughest in the industry, so Stage 1 on AMG usually requires Bench. 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. The Mercedes premium segment is a high-output platform with Stage 2 potential. 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.
Frequently asked questions
What is the Stage 1 effect on the Mercedes X 350d 258 hp?
Stage 1 chip tuning on the Mercedes X 350d 258 hp boosts engine output by 42 hp: from 258 to 300 hp. Torque rises from 620 to 700 Nm (+80 Nm).
What changes in the Mercedes X ECU after Stage 1?
Stage 1 on the Mercedes X 350d 258 hp is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +42 hp with no hardware changes.
What does Stage 1 give on the powerful Mercedes X 350d 258 hp?
Stage 1 on the powerful Mercedes X 350d 258 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).
How does Stage 2 differ from Stage 1 on the Mercedes X 350d 258 hp?
Stage 2 for the Mercedes X 350d 258 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.
How many ECU variants does the Mercedes X 350d 258 hp have?
The Mercedes X 350d 258 hp has 4 ECU variants: Delphi CPC2, Bosch EDC17CP57, Bosch VGS3-NAG3, Siemens/Continental VGS4-NAG2. Before flashing you need to read the specific unit — calibration is done for the exact hardware/software.
Does Stage 1 void the warranty on the Mercedes X?
Stage 1 on the Mercedes X voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.
How quickly is chip tuning of the Mercedes X 350d 258 hp done?
The full remap cycle for the Mercedes X — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.
Can you return to stock after Stage 1 on the Mercedes X?
The original Mercedes X ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.
How much does Stage 1 cost for the Mercedes X 350d 258 hp?
The cost of Stage 1 for the Mercedes X 350d 258 hp is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.