Mercedes CLS 500 (5.0i) 306 hp — Stage 1 file (+20 hp)
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Stage 1 file for Mercedes CLS 500 (5.0i) 306 hp
Target +0 hp. Custom development for your engine.
Chip tuning for Mercedes CLS 500 (5.0i) 306 hp ECU
Mercedes CLS (2004 - C219) 500 (5.0i) 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 326 hp (+20 hp, +7%) and torque from 460 to 485 Nm (+25 Nm). ECU — Bosch ME2.8. Flashing method: OBD or Bench depending on the unit's protection. The 2004 generation — old-era petrol ECUs (ME7/ME9/MED9/Simos) with easily readable memory.
The Mercedes three-pointed star symbolises dominance on land, at sea and in the air. 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. 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. Maybach uses Mercedes engines for the ultra-luxury segment, with the emphasis on quietness and smoothness.
The Mercedes community in Europe has a large pool of available Stage files for the standard 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. 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
How many horsepower does the Mercedes CLS 500 (5.0i) 306 hp reach after a remap?
The Stage 1 gain for the Mercedes CLS 500 (5.0i) 306 hp is 20 hp (+7%) over the stock 306 hp, for a total of 326 hp. Torque rises from 460 to 485 Nm (+25 Nm).
What is Stage 1 chip tuning for the Mercedes CLS?
Stage 1 on the Mercedes CLS 500 (5.0i) 306 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 +20 hp with no hardware changes.
What does Stage 1 give on the powerful Mercedes CLS 500 (5.0i) 306 hp?
The high-output Mercedes CLS 500 (5.0i) 306 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 does Stage 2 differ from Stage 1 on the Mercedes CLS 500 (5.0i) 306 hp?
Stage 2 on the Mercedes CLS 500 (5.0i) 306 hp means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
What control unit does the Mercedes CLS 500 (5.0i) 306 hp run?
The control unit of the Mercedes CLS 500 (5.0i) 306 hp is the Bosch ME2.8. Before flashing, the engineer identifies the exact revision and selects the write method.
Does Stage 1 void the warranty on the Mercedes CLS?
Stage 1 on the Mercedes CLS 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 CLS 500 (5.0i) 306 hp done?
The full remap cycle for the Mercedes CLS — 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 CLS?
The original Mercedes CLS 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 CLS 500 (5.0i) 306 hp?
The cost of Stage 1 for the Mercedes CLS 500 (5.0i) 306 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.