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Stage 1

Seat Althea 1.9 TDI Stage 1 file Bosch · 03G906021LN · SW 382082

Seat Althea 1.9 TDI Turbo Diesel 77.2 kW (105 HP) Stage 1

2007, Turbo diesel, 77.2 kW (105 hp)

Calibrated ECU file for 03G906021LN (SW 0281012). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.

How it works

  1. Read your ECU

    With KESS, KTAG, AutoTuner or Flex. Keep the read: it is your way back.

  2. Match the numbers

    Your read must show hardware 0281012 and software 382082.

  3. Pay and download

    Card, Apple Pay or Google Pay. The file is in your account straight away.

  4. 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.

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 Seat
Vehicle model Althea
Model year 2007
Displacement 1.9 L
Fuel / Induction Turbo Diesel
Factory power 77.2 kW (105 HP)
ECU manufacturer Bosch
ECU hardware 03G906021LN
ECU software 0281012
Calibration stage Stage 1
File format BIN / ORI
Checksum Pre-corrected (ready to flash)
Delivery Instant download after payment

About this calibration file

The Stage 1 calibration for the 2007 Seat Althea 1.9L 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 03G906021LN and software version 0281012. 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

The file is written for the exact ECU hardware 03G906021LN (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.

No. Stage 1 is explicitly a stock-hardware tune — no turbo, injector, fuel-pump, intercooler or exhaust changes are required. The only prerequisite is a mechanically healthy engine with good compression, clean EGR/DPF state, and fresh service fluids.

Re-flashing the ECU leaves a flag that a franchised Seat dealer can detect with their diagnostic tool. Most markets treat this as a basis to deny powertrain warranty claims that the modification could have caused. Emissions-sensitive components (DPF, EGR, SCR) remain fully functional with this calibration — we do not remove, disable or alter any emissions hardware.

The power and torque numbers on this page are healthy-engine crank figures. On a well-maintained 2007 Seat Althea running a known-good fuel brand, you should see a clearly perceptible increase in mid-range pull — typically from 1,800 to 4,000 rpm on diesel, 2,500 to 6,000 rpm on petrol — along with a shorter 80-to-120 km/h in-gear time. Thermal performance and fuel consumption depend on how you drive post-tune.

Instant. As soon as the payment clears, the file appears under Downloads in your account and the link is emailed to you. It does not expire: sign in and download it again whenever you need it.

Pre-corrected. Every tuning file we sell is processed through CHKSuite (our in-house checksum engine) before it reaches your download link. You can flash it directly with KESS, KTAG, AutoTuner, CMD, Dimsport or any other supported tool — no extra checksum step required. A zero-CRC write to a modern Bosch/Siemens/Delphi ECU bricks the unit, so this is non-negotiable.

Contact us on WhatsApp or through the dashboard support thread. Free revisions are included for the same stage on the same ECU — send us a live log (via VCDS, INPA, EcuConnect, OBDeleven or similar) and we'll adjust timing, boost, rail pressure or smoke limits and re-issue the file. A failed flash itself (write aborted, bricked ECU) is recoverable with our Original file and a bench tool.

Product details

This product contains a calibrated Stage1 tuning file for Seat Althea 1.9 TDI 2007 Turbodiesel 77.2KW with Bosch 0281012 and software ID 03G906021LN (Bosch software number 382082 ( 1037382082 )). The base stock vehicle for this calibration has a factory output of around 77.2 kW (~105 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 0281012, 03G906021LN, 382082 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.

SHA-256 fingerprintF0BB5069 6A5F01CA 8E77F9DE 96715CC2 6D970F11 AA280FDE 8220F0FC 468C906F

Other files for this ECU

FileECUPrice
Seat Althea 1.9 TDI 105 hp Original Bosch 03G906021LN 382082 £6.99
Seat Althea 1.9 TDI 105 hp Original Bosch 03G906021LN 382082 £6.99
Seat Althea 1.9 TDI 105 hp Stage 1 Bosch 03G906021LN 382082 £21.99
Seat Althea 1.9 TDI 105 hp Original Bosch 0281011864 370804 £6.99
Seat Althea 1.9 TDI 105 hp Stage 1 Bosch 0281011864 370804 £21.99
Seat Althea 1.9 TDI 105 hp Original Bosch 0281012288 372776 £6.99
Seat Althea 1.9 TDI 105 hp Stage 1 Bosch 0281012288 372776 £21.99
Seat Althea 1.9 TDI 105 hp Original Bosch 03G906021JN 382685 £6.99

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