Description
Fuel relay G.CARTIER 9629945980 BITRON 240109 for Citroën and Peugeot vehicles
This fuel relay is a direct-fit electrical component designed for Citroën and Peugeot applications where OE numbers 9629945980, 240109 or internal code 19207L are referenced. It provides reliable switching of the fuel pump circuit and is commonly looked up by the product codes listed above, making it easy for professional technicians and DIY mechanics to find the correct replacement.
Technical Information
- Manufacturer: G.Cartier / BITRON
- Model: Citroën Xsara Picasso; Peugeot 607
- Product Codes: 9629945980, 240109
- Other Numbers: 19207L
Function
The fuel relay controls electrical power to the fuel pump and, in some vehicle configurations, other fuel-system components. When the engine is started, the relay closes to energize the pump, ensuring correct fuel pressure for engine operation. A properly functioning relay is essential for reliable starting and consistent engine performance.
Replacement Procedure
Replacement is straightforward for a trained technician or competent DIYer familiar with vehicle electrical systems:
- Disconnect the negative battery terminal before starting work to avoid short circuits.
- Locate the relay in the appropriate fuse/relay box (engine bay or interior relay panel depending on model).
- Remove any cover or retaining clips, gently pull the faulty relay straight out of its socket, and compare pin layout and part numbers.
- Install the replacement relay by pressing it fully into the socket, reassemble covers, and reconnect the battery.
- Confirm operation by turning the ignition on and verifying fuel pump priming and engine start.
Installation Recommendations
- Always disconnect the battery before removal to prevent electrical damage or accidental cranking.
- Check the relay socket and surrounding wiring for corrosion, melted insulation, or loose terminals and repair as needed before fitting the new relay.
- Use the OE numbers (9629945980, 240109, 19207L) to verify fitment and ensure identical pinout and ratings.
- If symptoms persist after replacement, inspect fuel pump, wiring harness, fuses and related ground connections.
Common Failure Causes
Fuel relays typically fail due to electrical fatigue, heat cycling, contamination or poor contacts. Common reasons include:
- Worn internal contacts from repeated switching leading to intermittent operation or complete failure.
- Heat damage from nearby engine components or prolonged high-current draw causing internal deformation or solder joint failure.
- Corrosion or moisture ingress in the relay socket causing increased resistance or open circuits.
- Electrical overloads or short circuits in the fuel pump circuit that can damage the relay coil or contacts.
Why Choose This Relay
Supplied under the identifiers commonly used by Stellantis applications, this relay matches the OE references used in Citroën Xsara Picasso and Peugeot 607 models. It is suitable for professionals and home mechanics who search by part number and expect a direct-fit replacement that restores proper fuel pump control.
