Description
Overview
Three-way cooling fan relay for Citroën and Peugeot vehicles. This used relay was carefully removed from a donor vehicle and thoroughly tested to confirm proper operation. It is commonly identified by OE numbers and is intended for mechanics and DIY enthusiasts who need a reliable replacement to maintain correct engine temperature.
Technical Information
- Manufacturer: PSA Group
- Model: Citroën C3 Picasso, Citroën C5
- Product Codes: 9662570880, 6500EJ
- Other Numbers: 9652021180, 9652021280
Function And Common Failure Causes
The relay controls the vehicle’s cooling fan circuits, switching high current to the radiator fans when signalled by the temperature sensor or the vehicle control unit. Common reasons for relay failure include contact wear, internal arcing, corrosion or moisture ingress, overheating from excessive current, and intermittent wiring or connector faults. When a fan relay fails, symptoms can include fans not running, fans stuck on, erratic fan operation, or engine overheating.
Replacement & Maintenance
Replacement is straightforward for qualified personnel and experienced DIYers. General steps:
- Ensure the ignition is off and the negative battery terminal is disconnected before starting.
- Locate the relay in the engine bay fuse/relay box (refer to the vehicle’s fusebox diagram).
- Unplug the electrical connector and remove the retaining clip or pull the relay straight out.
- Fit the replacement relay by aligning the pins and pressing it into the socket, then reconnect the connector and battery.
If you are unsure, consult a workshop manual or ask a professional technician. Regular inspection of connectors and the relay socket helps prevent corrosion-related failures.
Why Choose This Relay
This relay is a cost-effective option for keeping Citroën and Peugeot cooling systems operational, identified by original equipment numbers for easy matching. It is suitable for routine repairs and emergency replacements, offering compatibility with common PSA models such as the C3 Picasso and C5. Buying a unit referenced by OE codes 9662570880 and 6500EJ makes parts sourcing faster for professional garages and DIY repairs.
