Description
Fuel relay OMRON 240107 for Citroën and Peugeot vehicles. Used part with functional warranty.
This OMRON fuel pump relay (240107 / 19203N / 454935) is a reliable replacement component for a range of Citroën and Peugeot models. Intended for professional garages and competent DIY mechanics, this relay restores proper power supply to the fuel pump, ensuring correct fuel delivery and dependable engine starting. The part is commonly searched by its product codes, so listing these numbers helps you find the exact fit quickly.
Technical Information
- Manufacturer: OMRON
- Model: Citroën C2; Citroën C3; Citroën C3 Pluriel; Citroën C4; Peugeot 207; Peugeot 307
- Product Codes: 240107, 19203N, 454935
- Additional Numbers: Stellantis References / OEM Applications
Compatibility
Compatible with various Citroën and Peugeot models listed above. Always check the relay part number against the unit in the vehicle—these relays are commonly identified by the codes shown and are often interchangeable among models within the same platform.
Function And Symptoms
The fuel relay supplies switched 12V power to the fuel pump when the engine is cranking or running. Typical symptoms of a failing fuel relay include:
- Engine crank without starting (fuel pump not running)
- Intermittent stalling or loss of power
- Clicking noise from the relay or relay socket when turning the ignition
- Electrical smells or visible corrosion at the relay contacts
Replacement And Installation
Basic replacement steps for experienced technicians or skilled DIYers:
- Disconnect the negative battery terminal before starting work.
- Locate the relay—typically found in the engine bay fuse/relay box or an interior relay panel depending on model.
- Inspect the relay socket and surrounding wiring for corrosion or damage.
- Pull the faulty relay straight out (use a relay puller if needed) and insert the replacement, ensuring correct orientation and full seating.
- Reconnect the battery and verify fuel pump operation and engine start. Clear any diagnostic codes if present.
Mounting Recommendations
Always work on a vehicle with the battery disconnected to avoid short circuits. Ensure the relay is correctly seated and that the relay socket and connector pins are clean and free of corrosion. If socket corrosion or melted plastic is present, replace the socket or repair wiring before fitting the new relay. After installation, perform a functional test: turn the ignition to the ON position and confirm the fuel pump primes, then start the engine and verify stable operation.
Why The Part Most Often Fails
Fuel relays typically fail due to contact wear, electrical arcing, coil fatigue, or water ingress causing corrosion. Thermal stress from repeated hot/cold cycles and voltage spikes in the vehicle electrical system can also shorten relay life. Poor connector condition or contamination accelerates failure, so inspect and address the socket and wiring when fitting a new relay.
Notes For Professionals
This relay is a used unit supplied with a functional warranty. It is a cost-effective option for repairs when matched by part number. For persistent electrical faults, check the entire power supply circuit including fuses, wiring, ground points, and the fuel pump itself.
