Stage 3
Stage 3 · Diesel · 318D 136hp (1995cc)
BMW E46 320D Stage 3 file Bosch HW 0281001445
BMW E46 320D Turbo Diesel 100 kW (136 HP) Stage 3Turbo diesel, 100 kW (136 hp)
136 → 210 HP +74 HP +176 Nm 54% more power
Calibrated ECU file for 0281001445 (SW 351343). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 318D 136hp (1995cc), N47D20C, 2L, Diesel. Engine #865 in our gains database.
- Power
- 210 HP+74 HP from 136
- Torque
- 496 Nm+176 Nm from 320
- 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 0281001445.
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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 3, Diesel.
Hardware
- Hybrid or larger turbocharger
- Upgraded injectors (matched flow rate)
- Front-mount intercooler upgrade
- Sport / decat downpipe + free-flow exhaust
- High-flow air intake
- Uprated clutch (manual gearbox)
Software / calibration
- Custom map dialled to the installed turbo, injector and intercooler spec
- Boost, fuelling, ignition / injection timing rebuilt around the new hardware
- All safety limits (knock, EGT, lambda, rail) re-tuned to match
- Drivability and torque-by-gear shaped to match the hardware
Stage 3 is hardware-matched. Send your turbo / injector / intercooler / clutch spec at checkout so the file is calibrated to YOUR build: typical projection above is a guide, final dyno depends on installed hardware.
Vehicle & ECU specifications
Exact vehicle, engine and ECU identifiers this calibration file is written for. Cross-check against your ECU before flashing.
| Vehicle make | BMW |
|---|---|
| Vehicle model | E46 320d |
| Fuel / Induction | Turbo Diesel |
| Factory power | 100 kW (136 HP) |
| ECU manufacturer | Bosch |
| ECU ID | 351343-344 |
| ECU hardware | 0281001445 |
| Calibration stage | Stage 3 |
| Cylinder capacity | 1995 CC |
| Compression ratio | 16,5 : 1 |
| Bore × Stroke | 84,0 X 90,0 mm |
| OEM engine code | N47D20C |
| 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 | 136 HP | 320 Nm | — | — |
| Stage 1 | 190 HP | 400 Nm | +54 (39.7%) | +80 |
| Stage 2 | 200 HP | 416 Nm | +64 (47.1%) | +96 |
| Stage 3 | 210 HP | 496 Nm | +74 (54.4%) | +176 |
| Stage 4 | 245 HP | 592 Nm | +109 (80.1%) | +272 |
About this calibration file
The Stage 3 calibration for the BMW E46 320d Turbo Diesel targets a hardware-upgraded setup — hybrid or larger turbocharger, upgraded injectors, high-flow fuelling and in most cases a full exhaust. Maps are redrawn for the new airflow envelope with re-scaled MAF/MAP, torque limiters, smoke limiters and boost PID re-tuned.
This file matches a Bosch ECU with hardware number 0281001445. 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: 210 HP and 496 Nm at the crank — a gain of +74 HP (54%) and +176 Nm over the factory 136 HP / 320 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
0281001445 (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 Stage3 tuning file for BMW E46 320D Turbodiesel 100KW with Bosch 0281001445. The base stock vehicle for this calibration has a factory output of around 100 kW (~136 HP). This high-stage file targets heavily modified setups (bigger turbo, injectors etc.) and should be used by experienced tuners only.
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 0281001445. Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
8D39AA1E 10F27BEC 412C45F8 EE4A246D 81A63C2E C63CD094 C1ED6883 9011D951