Description
Control Unit for Peugeot 308 1.6 e‑HDi Start-Stop. 100% Functional.
Overview
This Continental SID807EVO engine control unit (ECU) is designed for Stellantis diesel engines with e‑HDi Start‑Stop functionality, most notably the Peugeot 308 1.6 e‑HDi. The unit manages fuel injection, engine management and Start‑Stop logic, delivering reliable performance for workshops and DIY mechanics who service Citroën and Peugeot vehicles. Supplied with common OEM reference numbers, it is ideal for technicians searching by part code (S180123008 A, 9800268980, 9666681180) and for owners who prefer direct part number matching.
Technical Information
- Manufacturer: Continental
- Model: Peugeot 308 1.6 e‑HDi (Start‑Stop)
- Product Codes: S180123008 A, 9800268980, 9666681180
- Other Numbers: 1607488880, 1677627080, 1607488980
Key Functions
The ECU controls injection timing and quantity, common‑rail fuel management, turbocharger actuation, EGR strategy, glow plug operation and Start‑Stop sequencing. It also processes sensor inputs and communicates diagnostic information over the vehicle network (OBD). Proper ECU operation is essential for fuel economy, emissions control and smooth engine behavior under Start‑Stop conditions.
Installation Recommendations
- Always disconnect the battery before removal and installation to avoid electrical damage.
- Handle the unit carefully; protect connectors and pins from dirt and corrosion.
- Inspect wiring harness and connectors for moisture or corrosion and repair any damaged pins or seals before fitting the ECU.
- After physical installation, follow the required pairing or coding procedure (see section below) to ensure full functionality with the vehicle.
- Use appropriate torques for mounting bolts and avoid over‑tensioning connector clips.
Installation And Coding – Important
– The unit is used and is paired with the original vehicle (VIN/PIN/keys).
– Options to bring the unit into service:
- Cloning data from the old unit (EEPROM/Flash) – after cloning the unit is plug and play.
- Virginization and subsequent initialization/telecoding via DiagBox (or online) + key adaptation.
– Recommended to be performed by a technician with PSA service equipment (DiagBox/Lexia/PP2000).
– Always disconnect the battery before removal/installation and follow the manufacturer’s procedure to avoid damage to the unit.
How Replacement Is Performed
Replacement typically requires removal of the ECU from its mounting location (often in the engine bay or under a protective cover), unplugging the electrical connectors and unbolting the unit. Once mechanically fitted, either clone the original EEPROM/Flash data into the replacement ECU or perform virginization and coding with PSA diagnostic tools. After coding, verify all engine and Start‑Stop functions and clear any stored fault codes.
Why This Part Fails Most Often
- Water Ingress and Corrosion: Moisture and corrosion at connectors or on the PCB are frequent causes of ECU failure.
- Electrical Surges: Jump‑starts, poor grounding or voltage spikes can damage internal components.
- Thermal Stress And Ageing: Repeated heat cycles and age can cause solder joint cracks or component degradation.
- Connector/Wiring Damage: Bent pins, broken wires or poor connector contact lead to intermittent faults and failures.
Notes For Buyers
This control unit is targeted primarily at professional mechanics and experienced DIYers who can perform or arrange for the necessary coding/cloning. Searchable by the listed part numbers, it helps you quickly identify compatibility for Peugeot 308 1.6 e‑HDi Start‑Stop applications. Ensure proper installation procedures and coding steps are followed to restore full vehicle functionality.
