Description
Part number S115300203 A is a Sagem/Siemens-manufactured engine control module supplied as original equipment on the renault/”>Renault Megane compact hatchback and the Scenic compact MPV. Both models share a common electronic architecture across several powertrain variants, making this a widely applicable unit within the range.
The ECU manages the full spectrum of engine functions — fuel injection quantity and timing, ignition mapping, idle speed stabilisation, lambda sensor feedback, exhaust gas recirculation and onboard diagnostics. Accurate control of these parameters is essential for fuel efficiency, emissions compliance and smooth power delivery.
A failing unit on the Megane or Scenic typically presents as intermittent or persistent engine warning lights, fault codes stored across injection or sensor circuits, rough cold-start behaviour, hesitation on acceleration, or a sudden no-start condition. Fitting a correctly matched OEM module resolves these faults where the ECU is confirmed as the root cause.
This module has been recovered from a Renault vehicle, tested under operational conditions and confirmed serviceable. It is offered as a genuine used part carrying part number S115300203 A.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/









