Mercedes CLS 350d (2.9) 286 hp — Stage 1 file (+114 hp)
hp
Stage 1 file for Mercedes CLS 350d (2.9) 286 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes CLS 350d (2.9) 286 hp ECU
Mercedes CLS (2018 - C257) 350d (2.9) 286 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 286 to 400 hp (+114 hp, +40%) and torque from 600 to 800 Nm (+200 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 modern diesel built in 2018 — a generation with encrypted firmware (Tricore TPROT) that often requires a Bench read.
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.
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. The Mercedes community in Europe has a large pool of available Stage files for the standard models. 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
What is the Stage 1 effect on the Mercedes CLS 350d (2.9) 286 hp?
After Stage 1 the power of the Mercedes CLS 350d (2.9) 286 hp rises from 286 to 400 hp, a gain of 114 hp (+40%). Torque rises from 600 to 800 Nm (+200 Nm).
How does Stage 1 differ from stock on the Mercedes CLS?
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 +114 hp with no hardware changes.
Is Stage 1 safe on the high-output Mercedes CLS 350d (2.9) 286 hp?
The high-output Mercedes CLS 350d (2.9) 286 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.
How much does Stage 2 add on the Mercedes CLS?
Stage 2 on the Mercedes CLS 350d (2.9) 286 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Which ECUs are found on the Mercedes CLS 350d (2.9) 286 hp?
The Mercedes CLS 350d (2.9) 286 hp was fitted with different ECUs depending on the year and trim: Bosch MD1CP001, Bosch VGS3-NAG3. 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 350d (2.9) 286 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 350d (2.9) 286 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 350d (2.9) 286 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.