Stage 1
Citroen C4 1.6 HDI Stage 1 file Bosch · SW 371536
Citroen C4 1.6 HDI Turbo Diesel 80.9 kW (110 HP) Stage 12005, Turbo diesel, 80.9 kW (110 hp)
Calibrated ECU file for (SW 371536). Checksum-corrected, ready to flash. Delivered instantly via secure download after payment.
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 371536.
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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.
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 | Citroen |
|---|---|
| Vehicle model | C4 |
| Model year | 2005 |
| Displacement | 1.6 L |
| Fuel / Induction | Turbo Diesel |
| Factory power | 80.9 kW (110 HP) |
| ECU manufacturer | Bosch |
| ECU software | 371536 |
| 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 2005 Citroen C4 1.6L 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 and software version 371536. 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
Product details
This product contains a calibrated Stage1 tuning file for Citroen C4 1.6 HDI 2005 Turbo-Diesel 80.9KW with Bosch Bosch (Bosch software number 371536 ( 1037371536 )). The base stock vehicle for this calibration has a factory output of around 80.9 kW (~110 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, 371536 (1037 + SW code). Use this file for diagnostics, cloning, recovery or as a base for custom remapping.
EED608D3 68DF3E13 69A0470F 1B6C0284 250E381C 163586DB 03962887 041CDA88