Stage 1
Stage 1 · Diesel · 2.5 V6 TDI 163hp
Audi A4 2.5 TDI Stage 1 file Bosch HW 0281012142 · 8E0907401AF · SW 372599
Audi A4 2.5 TDI Turbo Diesel 119.9 kW (163 HP) Stage 12005, Turbo diesel, 119.9 kW (163 hp)
163 → 190 HP +27 HP +70 Nm 17% more power
Calibrated ECU file for 0281012142 (SW 372599). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 2.5 V6 TDI 163hp, AKN, 2.5L, Diesel. Engine #304 in our gains database.
- Power
- 190 HP+27 HP from 163
- Torque
- 420 Nm+70 Nm from 350
- 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 0281012142 and software 372599.
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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, Diesel.
Hardware
- No hardware changes required: runs on completely stock hardware
Software / calibration
- Boost pressure optimised within factory turbo limits
- Injection timing & quantity remapped
- Smoke / EGT limiters refined
- DTCs left intact, factory safeties 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 | Audi |
|---|---|
| Vehicle model | A4 |
| Model year | 2005 |
| Displacement | 2.5 L |
| Fuel / Induction | Turbo Diesel |
| Factory power | 119.9 kW (163 HP) |
| ECU manufacturer | Bosch |
| ECU ID | 8E0907401AF |
| ECU hardware | 0281012142 |
| ECU software | 372599 |
| Calibration stage | Stage 1 |
| Cylinder capacity | 2496 CC |
| Compression ratio | 18,0 : 1 |
| Bore × Stroke | 78,3 X 86,4 mm |
| OEM engine code | AKN |
| 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 | 163 HP | 350 Nm | — | — |
| Stage 1 | 190 HP | 420 Nm | +27 (16.6%) | +70 |
| Stage 2 | 200 HP | 437 Nm | +37 (22.7%) | +87 |
| Stage 3 | 245 HP | 543 Nm | +82 (50.3%) | +193 |
| Stage 4 | 293 HP | 648 Nm | +130 (79.8%) | +298 |
About this calibration file
The Stage 1 calibration for the 2005 Audi A4 2.5L Turbo Diesel 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 0281012142 and software version 372599. 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: 190 HP and 420 Nm at the crank — a gain of +27 HP (17%) and +70 Nm over the factory 163 HP / 350 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
0281012142 (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 Audi A4 2.5 TDI 2005 Turbodiesel 119.9KW with Bosch 0281012142 and software ID 8E0907401AF (Bosch software number 372599 ( 1037372599 )). The base stock vehicle for this calibration has a factory output of around 119.9 kW (~163 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 0281012142, 8E0907401AF, 372599 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
C5982A32 057A26EF 4FD56781 835E369C F602E963 CB57C329 27E56B6F 9A1EEB6F