Aimed at professional mechanics and competent DIYers, this relay performs the critical task of switching and controlling cooling fan operation to help maintain correct engine temperature. It fits as a direct replacement where the listed OEM codes apply and supports stable fan engagement under varying engine loads.

Function and Common Failure Modes: The relay controls one or more cooling fans and their operating stages, ensuring fans engage at the right temperatures. Relays typically fail due to heat and vibration, corroded or worn contacts, moisture ingress, or electrical surges. Symptoms of failure include fans not running, fans stuck on, intermittent fan operation, or engine overheating. Lifespan varies by vehicle use and environment; inspect the relay whenever cooling issues or related fault codes appear.

Replacement Guidance: Basic mechanical skills and common hand tools are sufficient for installation. Recommended steps: disconnect the vehicle battery for safety, locate the relay inside the engine bay fuse/relay box or near the radiator, unplug the connector and any attached wiring harness, remove mounting fasteners, install the new relay and harness, reconnect electrical plugs and battery, then verify fan operation and check for fault codes. Take care to inspect connector pins and replace damaged fuses if necessary.

Technical Information

• Manufacturer: Citroën, Peugeot
• Model: Citroën C4 Picasso, Citroën C5
• Product Codes: 9652021180, 9652021280, 9662570980, 6500EJ
• Additional Numbers: N/A

Quality Note: All parts have undergone thorough quality checks; while these are pre-owned components, they are prepared to deliver consistent performance when correctly installed. This relay is a practical option for workshops and home garages looking for a direct-fit solution for cooling fan control on compatible Citroën and Peugeot models.

This 3-way cooling relay is designed for PSA vehicles (Citroën & Peugeot), part numbers 9652021180, 9652021280, 9662570980, 6500EJ. Ideal for professional mechanics and competent DIYers who need a reliable relay to control radiator fan operation and prevent engine overheating.

Features

• Three-way relay for coolant fan control and related circuits
• Direct replacement for PSA part numbers listed above
• Robust construction to withstand engine bay conditions
• Simple plug-and-play installation in the vehicle fuse/relay box

Technical Information

Manufacturer: PSA (Citroën, Peugeot)
Model: Citroën C5
Product Codes: 9652021180, 9652021280, 9662570980, 6500EJ
Additional Numbers: 6500EJ

Compatibility And Fit

The relay is commonly used on Citroën C5 and other PSA models that accept the part numbers listed. Always verify fitment using the product codes or your vehicle’s VIN before ordering.

Installation Guide

Replacement is straightforward: disconnect the battery, locate the relay in the engine bay fuse/relay box, unplug the electrical connector, remove the old relay and install the new unit. No special tools are typically required. After installation, reconnect the battery and verify proper fan operation and cooling system response.

Common Failure Modes

Cooling relays fail due to exposure to heat and moisture, electrical overloading, corrosion of contacts or coil burnout. Symptoms include non-operational radiator fan, intermittent fan operation, or engine overheating. Check related fuses, wiring and connectors when diagnosing.

Why Buy This Relay

This part provides a cost-effective solution for restoring proper cooling fan control on compatible PSA vehicles. It has been inspected to meet functional expectations and is suitable for installation by trained mechanics or experienced DIY technicians.

Used three-way cooling relay for Citroën & Peugeot vehicles (PSA). An ideal, cost-effective replacement for mechanics and DIY enthusiasts who need to restore reliable fan control or repair the cooling system electrical circuit. Matches the listed PSA part numbers for direct fitment.

Key Features

• Direct fit for specified PSA part numbers for easy replacement
• Controls radiator cooling fans to regulate engine temperature and prevent overheating
• Suitable for under-hood use and common engine bay environments
• Carefully removed from a donor vehicle and thoroughly tested before listing

Why Relays Fail & How Often

Relays commonly fail due to aged or pitted contacts, repeated heat cycling, corrosion, moisture ingress, or electrical surges. There is no fixed replacement interval; failures often occur after many years in service or when intermittent fan operation, overheating events or electrical faults appear.

Replacement Guide

This relay can be replaced by a competent DIYer or a professional mechanic. Typical replacement steps:

1. Disconnect the negative battery terminal for safety.
2. Locate the relay in the engine bay fuse/relay box (consult the vehicle handbook for exact location).
3. Compare part numbers printed on the relay to ensure correct fitment, then pull the old relay straight out of its socket.
4. Install the replacement relay, secure the cover and reconnect the battery.
5. Start the engine and verify fan operation at idle and under load; check for error codes if applicable.

Use basic hand tools, avoid forcing connectors, and protect against short circuits while working.

Compatibility

Suitable for select Citroën C3 Picasso and Citroën C5 models and other PSA vehicles that use the listed part numbers. Always verify fitment by comparing product codes on your original relay before installation.

Technical Information

• Manufacturer: PSA Group
• Model: Citroën C3 Picasso, Citroën C5
• Product Codes: 9662570880, 6500EJ
• Other Numbers: 9652021180, 9652021280

Buy With Confidence

Purchase this used PSA cooling relay to restore reliable fan control and help prevent engine overheating. If you are unsure about fitment, contact us with your vehicle identification number (VIN) and the part numbers printed on your existing relay for confirmation.