Stage 1
Stage 1 · Petrol · SLK350 3500 V6 268hp
MB SLK350 3.5 V6 Stage 1 file Bosch HW 0261209064 · SW 375752
Mercedes-Benz SLK350 3.5 V6 Petrol 200.1 kW (272 HP) Stage 12007, Petrol, 200.1 kW (272 hp)
268 → 294 HP +26 HP +40 Nm 10% more power
Calibrated ECU file for 0261209064 (SW 375752). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: SLK350 3500 V6 268hp, M272KE35, Petrol. Engine #14565 in our gains database.
- Power
- 294 HP+26 HP from 268
- Torque
- 413 Nm+40 Nm from 373
Real data from Gains API. Dyno curve = typical ECU-family projection. Final gains depend on fuel, altitude, wear.
How it works
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Read your ECU
With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.
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Match the numbers
Your read must show hardware 0261209064 and software 375752.
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Pay and download
Card, Apple Pay or Google Pay. The file is in your account straight away.
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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 | Slk350 |
| Model year | 2007 |
| Displacement | 3.5 L |
| Fuel / Induction | Petrol |
| Factory power | 200.1 kW (272 HP) |
| ECU manufacturer | Bosch |
| ECU hardware | 0261209064 |
| ECU software | 375752 |
| Calibration stage | Stage 1 |
| OEM engine code | M272KE35 |
| 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 | 268 HP | 373 Nm | — | — |
| Stage 1 | 294 HP | 413 Nm | +26 (9.7%) | +40 |
| Stage 2 | 312 HP | 434 Nm | +44 (16.4%) | +61 |
| Stage 3 | 442 HP | 578 Nm | +174 (64.9%) | +205 |
| Stage 4 | 523 HP | 690 Nm | +255 (95.1%) | +317 |
About this calibration file
The Stage 1 calibration for the 2007 Mercedes-Benz Slk350 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 0261209064 and software version 375752. 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: 294 HP and 413 Nm at the crank — a gain of +26 HP (10%) and +40 Nm over the factory 268 HP / 373 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
0261209064 (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 SLK350 3.5 V6 2007 Benzin 200.1KW with Bosch 0261209064 and software ID 120906439S1 (Bosch software number 375752 ( 1037375752 )). The base stock vehicle for this calibration has a factory output of around 200.1 kW (~272 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 0261209064, 120906439S1, 375752 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
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