Original file
Original / Factory · Petrol · 335i 306hp
BMW E90-E91 335i original file Siemens · SW 433322
BMW E90-E91 335i 225.1 kW (306 HP) Original225.1 kW (306 hp)
306 HP Factory calibration Stock backup file, 400 Nm, Petrol
Calibrated ECU file for (SW 433322). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
Performance projection
Matched engine: 335i 306hp, N55B30A, 3L, Petrol. Engine #872 in our gains database.
- Power
- 306 HPfactory calibration
- Torque
- 400 Nmfactory calibration
Real data from Gains API. Dyno curve = typical ECU-family projection. Final gains depend on fuel, altitude, wear.
How it works
-
Read your ECU
With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.
-
Match the numbers
Your read must show hardware 5WK93608 and software 433322.
-
Pay and download
Card, Apple Pay or Google Pay. The file is in your account straight away.
-
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: Factory, Petrol.
Hardware
- Factory hardware: no modifications required
Software / calibration
- OEM calibration restored (recovery / immobiliser / coding work)
Original files are used to revert to factory state, repair after a faulty tune, or recover an ECU before service work.
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 | E90 E91 335i |
| Factory power | 225.1 kW (306 HP) |
| ECU manufacturer | Siemens |
| ECU hardware | 5WK93608 |
| ECU software | 433322 |
| Calibration stage | Original (Factory) |
| OEM engine code | N55B30A |
| 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 | 306 HP | 400 Nm | — | — |
| Stage 1 | 365 HP | 520 Nm | +59 (19.3%) | +120 |
| Stage 2 | 386 HP | 540 Nm | +80 (26.1%) | +140 |
| Stage 3 | 505 HP | 620 Nm | +199 (65%) | +220 |
| Stage 4 | 597 HP | 740 Nm | +291 (95.1%) | +340 |
About this calibration file
This is the factory (original) ECU calibration for the BMW E90 E91 335i, extracted from a genuine stock control unit. Use it as a verified backup before flashing any performance tune, or as a reference when recovering an ECU from a failed write.
This file matches a Siemens ECU with hardware number 5WK93608 and software version 433322. 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.
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
5WK93608 (Siemens) 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 complete original ECU backup (stock file) for BMW E90-E91 335i 225.1KW with Siemens 5WK93608 (Bosch software number 433322 ( 1037433322 )). This original file corresponds to a factory engine output of approximately 225.1 kW (~306 HP). This file is ideal for ECU cloning, restoring the car back to stock and using it as a safe base for future remaps.
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 5WK93608, 433322 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
14016D62 5C9536BE A240D7EE E4AFF047 029BC642 E690E519 9A6F6C7A 3DF4C8BA