Description
Overview
This three-way cooling relay is designed for Citroën and Peugeot vehicles (PSA). It regulates the vehicle’s cooling system by switching fan circuits and controlling fan speeds, helping to maintain optimal engine temperature and prevent overheating. The part is suitable for experienced mechanics and competent DIY enthusiasts seeking a direct-fit replacement by part number.
Features & Benefits
- Direct compatibility with PSA part numbers 9652021180, 9652021280, 9662570980 and 6500EJ.
- Controls multiple fan stages/circuits for efficient temperature management.
- Plug-and-play design for quick replacement in the engine bay fuse/relay box.
- Ideal for professional workshops and DIY repairs where accurate part-number matching is required.
Installation & Replacement
Typical replacement is straightforward for anyone familiar with basic electrical repairs. Recommended steps:
- Park on level ground, switch off the ignition and disconnect the negative battery terminal for safety.
- Locate the relay in the engine compartment fuse/relay box (refer to the vehicle’s manual for exact location).
- Unplug the electrical connector and release any retaining clips; remove the old relay and insert the replacement by aligning the pins.
- Reconnect the connector, restore the battery connection and verify fan operation at different engine temperatures or with air conditioning engaged.
Basic hand tools are usually sufficient. If electrical faults persist after replacement, inspect fuses, wiring and the fan motor.
Common Failure Modes
Relays in cooling systems typically fail due to heat stress, corrosion of terminals, contact wear from repeated switching, or water ingress. Symptoms indicating relay issues include intermittent or non-functioning radiator fans, engine overheating, fans running continuously, or electrical faults/blown fuses. Replacing the relay and checking the connector and fusebox condition often resolves these problems.
Technical Information
Manufacturer: PSA (Citroën, Peugeot)
Model: Citroën C5
Product Codes: 9652021180, 9652021280, 9662570980, 6500EJ
Additional Numbers: 6500EJ
Notes
This is a used relay that has been inspected and is offered as a replacement part. Matching the part number is the most reliable way to ensure compatibility. When replacing electrical components in the cooling system, always check related fuses, connectors and wiring for signs of wear or damage to avoid recurring issues.
