Stage 1
Stage 1 · Petrol · 350 CGI 292hp
MB CLS350 3.5 V6 Stage 1 file Bosch HW 0261S02455 · SW 392718
Mercedes-Benz CLS350 3.5 V6 Petrol 214.8 kW (292 HP) Stage 12010, Petrol, 214.8 kW (292 hp)
292 → 312 HP +20 HP +25 Nm 7% more power
Calibrated ECU file for 0261S02455 (SW 392718). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 350 CGI 292hp, M272, 3.5L, Petrol. Engine #4665 in our gains database.
- Power
- 312 HP+20 HP from 292
- Torque
- 390 Nm+25 Nm from 365
- Fuel economy
- −8 %−12% full load
Real data from Gains API. Dyno curve = typical ECU-family projection. Final gains depend on fuel, altitude, wear.
How it works
-
Read your ECU
With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.
-
Match the numbers
Your read must show hardware 0261S02455 and software 392718.
-
Pay and download
Card, Apple Pay or Google Pay. The file is in your account straight away.
-
Write it and drive
Write it back the way you read it. Not right for your car? We correct it free.
What the car needs
Required modifications: Stage 1, Petrol.
Hardware
- No hardware changes required: runs on completely stock hardware
Software / calibration
- Boost / load targets optimised within factory hardware limits
- Ignition advance refined for the running fuel grade
- Throttle response and torque request remapped
- Factory safeties (knock, lambda, EGT) preserved
Stage 1 is a software-only calibration. Compatible with stock turbo, injectors, intercooler, exhaust and clutch.
Vehicle & ECU specifications
Exact vehicle, engine and ECU identifiers this calibration file is written for. Cross-check against your ECU before flashing.
| Vehicle make | Mercedes-Benz |
|---|---|
| Vehicle model | Cls350 |
| Model year | 2010 |
| Displacement | 3.5 L |
| Fuel / Induction | Petrol |
| Factory power | 214.8 kW (292 HP) |
| ECU manufacturer | Bosch |
| ECU hardware | 0261S02455 |
| ECU software | 392718 |
| Calibration stage | Stage 1 |
| OEM engine code | M272 |
| File format | BIN / ORI |
| Checksum | Pre-corrected (ready to flash) |
| Delivery | Instant download after payment |
Engine performance matrix
Power, torque and fuel-economy figures for every tuning stage on this engine, sourced from the tuning-database Gains API. Values are healthy-engine crank numbers; real on-road gains vary with fuel, altitude and mechanical condition.
| Stage | Power | Torque | Δ HP | Δ Nm |
|---|---|---|---|---|
| Original / Factory | 292 HP | 365 Nm | — | — |
| Stage 1 | 312 HP | 390 Nm | +20 (6.8%) | +25 |
| Stage 2 | 331 HP | 410 Nm | +39 (13.4%) | +45 |
| Stage 3 | 482 HP | 566 Nm | +190 (65.1%) | +201 |
| Stage 4 | 569 HP | 675 Nm | +277 (94.9%) | +310 |
About this calibration file
The Stage 1 calibration for the 2010 Mercedes-Benz Cls350 3.5L Petrol is a drop-in remap that works on completely stock hardware — no turbo, injector, intercooler or fuel-system upgrades required. Injection timing, boost targets, rail-pressure limits and torque maps are rebalanced to extract the safe headroom the OEM leaves untouched for fleet-fuel tolerance, altitude margin and warranty buffer.
This file matches a Bosch ECU with hardware number 0261S02455 and software version 392718. Verify both identifiers in your flashing tool before writing — an ID mismatch is the most common cause of a bricked ECU. If you are unsure, upload a read of your original file via the file-request wizard and our engineers will confirm compatibility before you flash.
Projected output on a healthy, stock-hardware example of this engine: 312 HP and 390 Nm at the crank — a gain of +20 HP (7%) and +25 Nm over the factory 292 HP / 365 Nm baseline. These numbers are sourced from our Vehicle Performance Database, which aggregates dyno results across this engine family. Real-world gains depend on fuel grade, ambient temperature, mechanical condition and intake/exhaust state.
The file is delivered as a ready-to-flash BIN (and ORI backup where applicable) compatible with all major tools — KESS V2/V3, KTAG, AutoTuner, CMDFlash, Dimsport New Genius, MPPS, Flex, BFlash, PCMFlash, MMFlash — via OBD, bench or boot-mode as supported by your ECU family. Checksums are pre-computed and verified; no additional checksum tool is required. All files include a free revision if post-flash logs reveal a fuelling, boost or EGT issue.
Frequently asked questions
0261S02455 (Bosch) listed in the specifications. Read your ECU with any supported tool (KESS, KTAG, AutoTuner, CMD, etc.) and compare the hardware + software numbers against the ones on this page. If they match exactly, the file is a direct fit. If you're not 100% sure, upload your original read via the file-request wizard and our engineers will confirm within minutes — no cost, no obligation.Product details
This product contains a calibrated Stage1 tuning file for MB CLS350 3.5 V6 2010 Benzin 214.8KW with Bosch 0261S02455 (Bosch software number 392718 ( 1037392718 )). The base stock vehicle for this calibration has a factory output of around 214.8 kW (~292 HP). This Stage 1 calibration is designed for stock hardware, offering a safe and reliable increase in power and torque for daily use.
All ECU tuning files from TUNING-DATABASE are prepared for professional use. They are useful whenever you search by ECU ID, hardware or software number such as 0261S02455, 392718 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
4AF25207 ACFCE63F CAD2B6DF B9BC1CBA ED1152B7 9D422D3E F2BC1398 34729259