Stage 2
Stage 2 · Diesel · 3.0 TDI Clean Diesel Quattro S-Tronic 240hp
Audi A4 3.0 TDI CR Stage 2 file Bosch · 8K0907401F · SW 501408
Audi A4 3.0 TDI CR Turbo Diesel 176.5 kW (240 HP) Stage 22009, Turbo diesel, 176.5 kW (240 hp)
240 → 341 HP +101 HP +235 Nm 42% more power
Calibrated ECU file for 8K0907401F (SW 501408). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 3.0 TDI Clean Diesel Quattro S-Tronic 240hp, CVKB, 3.0L, Diesel. Engine #10650 in our gains database.
- Power
- 341 HP+101 HP from 240
- Torque
- 735 Nm+235 Nm from 500
- 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
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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 8K0907401F and software 501408.
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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 2, Diesel.
Hardware
- Sport / decat downpipe (or DPF removal where legally permitted off-road)
- High-flow air intake (recommended)
- Optional: catback exhaust for lower backpressure
Software / calibration
- DPF / EGR / AdBlue switched off in software (where lawful)
- Boost & rail pressure raised to match new airflow
- Smoke limiter relaxed in line with hardware
- Lambda + EGT safeties retuned
Stage 2 keeps the factory turbo and internals. Final figures vary slightly with the exact hardware fitted.
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 | A4 |
| Model year | 2009 |
| Displacement | 3.0 L |
| Fuel / Induction | Turbo Diesel |
| Factory power | 176.5 kW (240 HP) |
| ECU manufacturer | Bosch |
| ECU ID | 8K0907401F |
| ECU software | 501408 |
| Calibration stage | Stage 2 |
| OEM engine code | CVKB |
| 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 | 240 HP | 500 Nm | — | — |
| Stage 1 | 290 HP | 625 Nm | +50 (20.8%) | +125 |
| Stage 2 | 341 HP | 735 Nm | +101 (42.1%) | +235 |
| Stage 3 | 360 HP | 775 Nm | +120 (50%) | +275 |
| Stage 4 | 432 HP | 925 Nm | +192 (80%) | +425 |
About this calibration file
The Stage 2 calibration for the 2009 Audi A4 3.0L Turbo Diesel is written for vehicles with supporting bolt-ons: a higher-flow downpipe or sports catalyst, upgraded intercooler and upgraded intake are recommended. Boost targets, fuel-rail pressure, injector duration and VGT positioning are pushed further than a Stage 1 map while keeping exhaust-gas temperatures inside safe bands.
This file matches a Bosch ECU and software version 501408. 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: 341 HP and 735 Nm at the crank — a gain of +101 HP (42%) and +235 Nm over the factory 240 HP / 500 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
Product details
This product contains a calibrated Stage2 tuning file for Audi A4 3.0 TDI CR 2009 Turbo-Diesel 176.5KW with Bosch 8K0907401F (Bosch software number 501408 ( 1037501408 )). The base stock vehicle for this calibration has a factory output of around 176.5 kW (~240 HP). Stage 2 is intended for cars with supporting modifications (exhaust, intake, intercooler) and delivers a stronger performance gain.
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 8K0907401F, 501408 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
7B71D5EE 509BD234 0A6EE9A5 8B749A94 E2FB0118 8AB9D9AF 828C3BD9 B9926214