Description
This Siemens engine control unit ECU is an original Renault module for Renault Espace II 2.0 models, supplied under OEM number 7700851740 with alternate reference 7700851634. It is the main electronic controller for the engine management system and is designed as a genuine factory unit for correct vehicle integration.
Its job is to process sensor inputs and control key engine functions such as fuel delivery, ignition timing and overall running strategy. A properly working ECU helps the engine start correctly, idle steadily, respond smoothly to throttle input and maintain stable performance across normal driving conditions.
Common signs of a faulty unit include non-starting, intermittent starting problems, misfiring, uneven idle, poor throttle response, warning lights or loss of communication during diagnostics. Electrical faults inside the ECU can also lead to unpredictable engine behaviour or recurring management issues that are difficult to trace.
This is a used original part, removed from a vehicle and tested before sale. Match 7700851740 and 7700851634 exactly before ordering. Professional installation is recommended, and coding, programming or adaptation may be required depending on vehicle configuration and replacement procedure.
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/
