Stage 1
Stage 1 · Petrol · 523i 2500 24v 168hp
BMW E39 525TD Stage 1 file Bosch · SW 351513
BMW E39 525TD Turbo Petrol 119.9 kW (163 HP) Stage 12001, Turbo petrol, 119.9 kW (163 hp)
168 → 184 HP +16 HP +25 Nm 10% more power
Calibrated ECU file for (SW 351513). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 523i 2500 24v 168hp, M52B25TU, Petrol. Engine #9540 in our gains database.
- Power
- 184 HP+16 HP from 168
- Torque
- 259 Nm+25 Nm from 234
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 Bosch and software 351513.
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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, Petrol.
Hardware
- No hardware changes required: runs on completely stock hardware
Software / calibration
- Boost / load targets optimised within factory hardware limits
- Ignition advance refined for the running fuel grade
- Throttle response and torque request remapped
- Factory safeties (knock, lambda, EGT) 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 | BMW |
|---|---|
| Vehicle model | E39 525td |
| Model year | 2001 |
| Fuel / Induction | Petrol |
| Factory power | 119.9 kW (163 HP) |
| ECU manufacturer | Bosch |
| ECU software | 351513 |
| Calibration stage | Stage 1 |
| OEM engine code | M52B25TU |
| 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 | 168 HP | 234 Nm | — | — |
| Stage 1 | 184 HP | 259 Nm | +16 (9.5%) | +25 |
| Stage 2 | 195 HP | 272 Nm | +27 (16.1%) | +38 |
| Stage 3 | 277 HP | 363 Nm | +109 (64.9%) | +129 |
| Stage 4 | 328 HP | 433 Nm | +160 (95.2%) | +199 |
About this calibration file
The Stage 1 calibration for the 2001 BMW E39 525td Petrol 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 and software version 351513. 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: 184 HP and 259 Nm at the crank — a gain of +16 HP (10%) and +25 Nm over the factory 168 HP / 234 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 Stage1 tuning file for BMW E39 525TD 2001 Turbo-Benzin 119.9KW with Bosch Bosch (Bosch software number 351513 ( 1037351513 )). 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 Bosch, 351513 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
19328931 3C2251F3 08BB3BF2 817C8C2C 0CB3DFA7 36540836 2A38C73F A214CEB8