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Autotuner · October 12, 2026

Bosch MED17.4 (TC1796)

Bosch MED17.4 (TC1796)

Autotuner adds 100% OBD Normal Read support for the Bosch MED17.4 control unit (TC1796) of the 1.6 THP turbo petrol engine, fitted from 2005 to 2018 to Peugeot 207, 208, 308, 408, 508, 3008, 5008 and RCZ, Citroën C4, C4 Picasso, C4 SpaceTourer, C4 AirCross, C5, DS3, DS4 and DS5, the DS 3, DS 4 and DS 5, and the 2017 Opel/Vauxhall Grandland. Reading takes about 1 min 15 s and writing about 30 s, with checksum correction.

From the original announcement
« A highly anticipated software update targeting one of the most widely deployed turbo petrol engines across the PSA / Stellantis group is now live on your equipment! The Bosch MED17.4 ECU (featuring the TC1796 MCU) is officially supported via 100% OBD Normal Read (NR) on your AutoTuner Tool. »

Shop4Tuner is an official Autotuner reseller. Need the tool, an activation or advice on this update? Contact us, we use it daily in the workshop.

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