Bosch MED17.4.4 ECU chip tuning: Bosch petrol ECU on a Tricore core — TFSI/TSI/MED, direct injection. In the CHIPOK database this unit is found on Citroen, Peugeot and DS (19 modifications). Supported: Stage 1/2 Project-Id-Version: ECUTools Online 1.0 Report-Msgid-Bugs-To: POT-Creation-Date: 2026-07-01 14:20+0300 PO-Revision-Date: 2025-01-02 12:00+0000 Last-Translator: Language: en Language-Team: English Plural-Forms: nplurals=2; plural=(n != 1); MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Generated-By: Babel 2.18.0, removal of the EGR valve, SCR/AdBlue, the lambda sensors, the EVAP system, swirl-flap removal, Pops and Bangs, VMAX Off, DTC clearing, Reset to Stock, immobilizer deactivation and cold-start deactivation. Programmers: KESS3, KTAG, FoxFlash, BitBox, BDM100.
The Bosch MED17.4.4 unit is found on 19 different engines. Main brands: Citroen (9), Peugeot (6), DS (4).
On the Bosch MED17.4.4 the following are available: STAGE 2, COLD START OFF, NOx OFF, EGR OFF, STAGE 1, FLAPS OFF, VMAX OFF, DTC OFF, POP AND BANGS, IMMO OFF. All options combine in the calculator with the package Max Price cap.
To flash the Bosch MED17.4.4 the following is used: KESS3 (OBD bootloader), Autotuner, MPPS V21, KTAG (Bench for Tricore), Trasdata, CMD Flash. CHIPOK accepts .bin/.hex/.ori from any of the listed programmers.
Stage 1 on the petrol Bosch MED17.4.4 reprograms ignition timing, lambda target, boost target and wastegate duty (on turbo), throttle response, VANOS/VVT phase, torque limiter.
The original bin/hex/ori is accepted after reading via KESS3, Autotuner, FoxFlash, KT200. Checksums are recalculated on the engineer's side.
OBD flashing of the Bosch MED17.4.4 — 25-30 minutes, Bench (if needed) — about an hour. The file processing itself takes 5-30 minutes after receipt.
The cost of a Bosch MED17.4.4 file is built in the calculator: you pick the operations you need (Stage 1, emissions removals, service operations) and the price is calculated with the package discount applied.