Stage 2
Stage 2 · Diesel · 2.5 V6 TDI 150hp
Audi A6 2.5 TDI Stage 2 file Bosch HW 0281010154 · 4B0907401AA
Audi A6 2.5 TDI Turbo Diesel 110.3 kW (150 HP) Stage 21998, Turbo diesel, 110.3 kW (150 hp)
150 → 213 HP +63 HP +146 Nm 42% more power
Calibrated ECU file for 0281010154 (SW 352633). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 2.5 V6 TDI 150hp, AKN, 2.5L, Diesel. Engine #10702 in our gains database.
- Power
- 213 HP+63 HP from 150
- Torque
- 456 Nm+146 Nm from 310
- 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 0281010154.
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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 | A6 |
| Model year | 1998 |
| Displacement | 2.5 L |
| Fuel / Induction | Turbo Diesel |
| Factory power | 110.3 kW (150 HP) |
| ECU manufacturer | Bosch |
| ECU ID | 4B0907401AA |
| ECU hardware | 352633-634 |
| ECU software | 0281010154 |
| Calibration stage | Stage 2 |
| 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 | 150 HP | 310 Nm | — | — |
| Stage 1 | 190 HP | 390 Nm | +40 (26.7%) | +80 |
| Stage 2 | 213 HP | 456 Nm | +63 (42%) | +146 |
| Stage 3 | 225 HP | 481 Nm | +75 (50%) | +171 |
| Stage 4 | 270 HP | 574 Nm | +120 (80%) | +264 |
About this calibration file
The Stage 2 calibration for the 1998 Audi A6 2.5L 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 with hardware number 352633-634 and software version 0281010154. 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: 213 HP and 456 Nm at the crank — a gain of +63 HP (42%) and +146 Nm over the factory 150 HP / 310 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
352633-634 (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 Stage2 tuning file for Audi A6 2.5 TDI 1998 Turbodiesel 110.3KW with Bosch 0281010154 and software ID 4B0907401AA. The base stock vehicle for this calibration has a factory output of around 110.3 kW (~150 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 0281010154, 4B0907401AA. Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
037B2D4E 0DCD54AE EA8A5F58 A168071F 83617D36 2CA5C414 DA51DC4C 06CD5AEC