Original file
Original / Factory · Diesel · 3.0 TDI 245hp
Audi A6 2.7 Bi-Turbo original file Bosch HW 0261206562 · 4B0907551L · SW 352739
Audi A6 2.7 Bi-Turbo Turbo Diesel 183.9 kW (250 HP) Original2002, Turbo diesel, 183.9 kW (250 hp)
245 HP Factory calibration Stock backup file, 500 Nm, Diesel
Calibrated ECU file for 0261206562 (SW 352739). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 3.0 TDI 245hp, CDUC, 3L, Diesel. Engine #467 in our gains database.
- Power
- 245 HPfactory calibration
- Torque
- 500 Nmfactory calibration
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 0261206562 and software 352739.
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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: Factory, Diesel.
Hardware
- Factory hardware: no modifications required
Software / calibration
- OEM calibration restored (recovery / immobiliser / coding work)
Original files are used to revert to factory state, repair after a faulty tune, or recover an ECU before service work.
Vehicle & ECU specifications
Exact vehicle, engine and ECU identifiers this calibration file is written for. Cross-check against your ECU before flashing.
| Vehicle make | Audi |
|---|---|
| Vehicle model | A6 |
| Model year | 2002 |
| Displacement | 2.7 L |
| Fuel / Induction | Turbo Diesel |
| Factory power | 183.9 kW (250 HP) |
| ECU manufacturer | Bosch |
| ECU ID | 4B0907551L |
| ECU hardware | 0261206562 |
| ECU software | 352739 |
| Calibration stage | Original (Factory) |
| Cylinder capacity | 2967 CC |
| Compression ratio | 16,8 : 1 |
| Bore × Stroke | 83,0 X 91,4 mm |
| OEM engine code | CDUC |
| 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 | 245 HP | 500 Nm | — | — |
| Stage 1 | 310 HP | 680 Nm | +65 (26.5%) | +180 |
| Stage 2 | 348 HP | 735 Nm | +103 (42%) | +235 |
| Stage 3 | 368 HP | 775 Nm | +123 (50.2%) | +275 |
| Stage 4 | 441 HP | 925 Nm | +196 (80%) | +425 |
About this calibration file
This is the factory (original) ECU calibration for the 2002 Audi A6 2.7L Turbo Diesel, extracted from a genuine stock control unit. Use it as a verified backup before flashing any performance tune, or as a reference when recovering an ECU from a failed write.
This file matches a Bosch ECU with hardware number 0261206562 and software version 352739. 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
0261206562 (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 complete original ECU backup (stock file) for Audi A6 2.7 Bi-Turbo 2002 Turbodiesel 183.9KW with Bosch 0261206562 and software ID 4B0907551L (Bosch software number 352739 ( 1037352739 )). This original file corresponds to a factory engine output of approximately 183.9 kW (~250 HP). This file is ideal for ECU cloning, restoring the car back to stock and using it as a safe base for future remaps.
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 0261206562, 4B0907551L, 352739 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
0D3F2C5A CD27BDDF E9AA52D2 2894A370 766BA06F DB731304 0B1CF53C C0D3D348