Mercedes CLS 350 (3.5i) 306 hp — Stage 1 file (+24 hp)
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Stage 1 file for Mercedes CLS 350 (3.5i) 306 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes CLS 350 (3.5i) 306 hp ECU
Mercedes CLS (2010 - C218) 350 (3.5i) 306 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 306 to 330 hp (+24 hp, +8%) and torque from 370 to 400 Nm (+30 Nm). This engine ships with different ECU variants: Bosch MED17.7.1, Bosch MED17.7.3, Siemens/Continental VGS4-NAG2, Siemens/Continental VGSx-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 petrol engine built in 2010 — a Tricore platform without strong protection; OBD access works.
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. Mid-generation petrol models use standard OBD flash. 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.
Mercedes is one of the most protected brands in the chip tuning industry in terms of encryption. The Mercedes community in Europe has a large pool of available Stage files for the standard models. On Mercedes up to the recent generation, Stage 1 OBD flash is available. 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 horsepower does Stage 1 add for the Mercedes CLS 350 (3.5i) 306 hp?
Stage 1 for the Mercedes CLS 350 (3.5i) 306 hp adds +24 hp — power increases from 306 to 330 hp (+8%). Torque rises from 370 to 400 Nm (+30 Nm).
What does a Stage 1 remap of the Mercedes CLS 350 (3.5i) 306 hp include?
Stage 1 chip tuning of the Mercedes CLS is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +24 hp with no hardware changes.
Is Stage 1 safe on the high-output Mercedes CLS 350 (3.5i) 306 hp?
Stage 1 on the powerful Mercedes CLS 350 (3.5i) 306 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 CLS?
Stage 2 for the Mercedes CLS 350 (3.5i) 306 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 CLS 350 (3.5i) 306 hp?
The Mercedes CLS 350 (3.5i) 306 hp was fitted with different ECUs depending on the year and trim: Bosch MED17.7.1, Bosch MED17.7.3, Siemens/Continental VGS4-NAG2, Siemens/Continental VGSx-NAG2. The write method (OBD, Bench, Boot) is determined when the unit is read.
What happens to the Mercedes CLS warranty after chip tuning?
The factory warranty of the Mercedes CLS 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 CLS take?
On the Mercedes CLS 350 (3.5i) 306 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 CLS?
Yes, the original ECU firmware of the Mercedes CLS 350 (3.5i) 306 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 CLS?
Stage 1 for the Mercedes CLS 350 (3.5i) 306 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.