Mercedes E 300 (3.5i) 252 hp — Stage 1 file (+23 hp)
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Stage 1 file for Mercedes E 300 (3.5i) 252 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes E 300 (3.5i) 252 hp ECU
Mercedes E (2009 - W212) 300 (3.5i) 252 hp — premium petrol 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 252 to 275 hp (+23 hp, +9%) and torque from 340 to 370 Nm (+30 Nm). This engine ships with different ECU variants: Bosch MED17.7.1, Bosch MED17.7.3, Siemens/Continental VGSx-NAG2. The flashing method is determined by the specific unit: OBD, Bench or Boot mode. In the CHIPOK database: 3 configurations · 3 ECU variants. A petrol engine built in 2009 — the era before widespread firmware encryption, OBD flash without complications.
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 older-generation Mercedes petrol engines, Stage 1 is flashed over OBD without Bench. The Mercedes petrol range spans compacts, premium saloons, SUVs, roadsters and AMG flagships. Mercedes encryption is among the toughest in the industry, especially on modern models.
The AMG community is active in Germany, but the protection is the toughest in the industry, so Stage 1 on AMG usually requires Bench. Mercedes is one of the most protected brands in the chip tuning industry in terms of encryption. Stage 1 on Mercedes often requires refreshing the adaptations after the flash. 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. High-output Mercedes engines are premium-class with solid headroom for Stage 1.
Frequently asked questions
How much does the power of the Mercedes E 300 (3.5i) 252 hp increase after Stage 1?
Stage 1 chip tuning on the Mercedes E 300 (3.5i) 252 hp boosts engine output by 23 hp: from 252 to 275 hp. Torque rises from 340 to 370 Nm (+30 Nm).
What changes in the Mercedes E ECU after Stage 1?
Stage 1 chip tuning of the Mercedes E is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +23 hp with no hardware changes.
Is Stage 1 safe on the high-output Mercedes E 300 (3.5i) 252 hp?
Stage 1 on the powerful Mercedes E 300 (3.5i) 252 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 much does Stage 2 add on the Mercedes E?
Stage 2 for the Mercedes E 300 (3.5i) 252 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 ECUs are found on the Mercedes E 300 (3.5i) 252 hp?
The Mercedes E 300 (3.5i) 252 hp was fitted with different ECUs depending on the year and trim: Bosch MED17.7.1, Bosch MED17.7.3, Siemens/Continental VGSx-NAG2. The write method (OBD, Bench, Boot) is determined when the unit is read.
What happens to the Mercedes E warranty after chip tuning?
The factory warranty of the Mercedes E does not remain valid after Stage 1 — the manufacturer withdraws its obligations once the ECU software is changed. CHIPOK provides its own warranty on its work and support.
How long does remapping the Mercedes E take?
On the Mercedes E 300 (3.5i) 252 hp: OBD flash 25-30 minutes, Bench (if required) about an hour. The file processing itself takes 5-30 minutes once the original bin is received.
Is the original file kept when chip tuning the Mercedes E?
Yes, the original ECU firmware of the Mercedes E 300 (3.5i) 252 hp is kept and can be flashed back at any time. Returning to stock via OBD takes 25-30 minutes.
What is the price of a Stage 1 remap for the Mercedes E?
Stage 1 for the Mercedes E 300 (3.5i) 252 hp is paid for with CHIPOK credits (1 cr = 1 €). The final amount is set in the calculator, taking the extra options (off functions) into account.