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Stage 1

MB R 350CDI Stage 1 file Bosch · SW 512447

Mercedes-Benz R 350CDI 194.9 kW (265 HP) Stage 1

2012, 194.9 kW (265 hp)

Calibrated ECU file for (SW 512447). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.

How it works

  1. Read your ECU

    With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.

  2. Match the numbers

    Your read must show hardware 642LS and software 512447.

  3. Pay and download

    Card, Apple Pay or Google Pay. The file is in your account straight away.

  4. 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.

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 R 350cdi
Model year 2012
Factory power 194.9 kW (265 HP)
ECU manufacturer Bosch
ECU ID CR60-642LS-7AL9-CH4
ECU hardware Q2-251WA-LS-EU5OP
ECU software 512447
Calibration stage Stage 1
File format BIN / ORI
Checksum Pre-corrected (ready to flash)
Delivery Instant download after payment

About this calibration file

The Stage 1 calibration for the 2012 Mercedes-Benz R 350cdi 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 Q2-251WA-LS-EU5OP and software version 512447. 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.

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

The file is written for the exact ECU hardware Q2-251WA-LS-EU5OP (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.

No. Stage 1 is explicitly a stock-hardware tune — no turbo, injector, fuel-pump, intercooler or exhaust changes are required. The only prerequisite is a mechanically healthy engine with good compression, clean EGR/DPF state, and fresh service fluids.

Re-flashing the ECU leaves a flag that a franchised Mercedes-Benz dealer can detect with their diagnostic tool. Most markets treat this as a basis to deny powertrain warranty claims that the modification could have caused. Emissions-sensitive components (DPF, EGR, SCR) remain fully functional with this calibration — we do not remove, disable or alter any emissions hardware.

The power and torque numbers on this page are healthy-engine crank figures. On a well-maintained 2012 Mercedes-Benz R 350cdi running a known-good fuel brand, you should see a clearly perceptible increase in mid-range pull — typically from 1,800 to 4,000 rpm on diesel, 2,500 to 6,000 rpm on petrol — along with a shorter 80-to-120 km/h in-gear time. Thermal performance and fuel consumption depend on how you drive post-tune.

Instant. As soon as the payment clears, the file appears under Downloads in your account and the link is emailed to you. It does not expire: sign in and download it again whenever you need it.

Pre-corrected. Every tuning file we sell is processed through CHKSuite (our in-house checksum engine) before it reaches your download link. You can flash it directly with KESS, KTAG, AutoTuner, CMD, Dimsport or any other supported tool — no extra checksum step required. A zero-CRC write to a modern Bosch/Siemens/Delphi ECU bricks the unit, so this is non-negotiable.

Contact us on WhatsApp or through the dashboard support thread. Free revisions are included for the same stage on the same ECU — send us a live log (via VCDS, INPA, EcuConnect, OBDeleven or similar) and we'll adjust timing, boost, rail pressure or smoke limits and re-issue the file. A failed flash itself (write aborted, bricked ECU) is recoverable with our Original file and a bench tool.

Product details

This product contains a calibrated Stage1 tuning file for MB R 350CDI 2012 194.9KW with Bosch CR60-642LS-7AL9-Ch4 and software ID Q2-251WA-LS-EU5OP (Bosch software number 512447 ( 1037512447 )). The base stock vehicle for this calibration has a factory output of around 194.9 kW (~265 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 CR60-642LS-7AL9-Ch4, Q2-251WA-LS-EU5OP, 512447 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

SHA-256 fingerprintF755148D 4C65BCE7 C2338980 55550858 8B36894C CE335DDD CB794AF7 4A0EC793

Other files for this ECU

FileECUPrice
MB R 350CDI 265 hp Original Bosch 512447 £6.99
MB R 350cdi 204 hp Original Bosch 512461 £6.99
MB R 350cdi 204 hp Stage 1 Bosch 512461 £21.99
MB R 300 CDI 224 hp Original Bosch 378248 £6.99
MB R 300 CDI 224 hp Stage 1 Bosch 378248 £21.99
MB R 320 CDI 224 hp Original Bosch 0281013385 398880 £6.99
MB R 320 CDI 224 hp Stage 1 Bosch 0281013385 398880 £21.99
MB R 320 CDI 224 hp Original Bosch 392645 £6.99

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