Description
Three-Way Cooling Relay For Citroën And Peugeot Vehicles
High-quality three-way cooling relay with a short wiring pigtail, intended for use on a range of Citroën and Peugeot models. This compact relay assembly (often searched by OE numbers such as 9652021180, 9652021280, 9662570980 or 6500EJ) controls the vehicle’s cooling fans and related circuits to maintain optimal engine temperature. Built for workshop use and DIY repair, the part is suitable for fast replacement and restores reliable fan control when the original relay or its connector harness shows faults.
Product Overview
The Three-Way Cooling Relay switches and manages multiple cooling fan circuits or auxiliary fan stages depending on engine temperature and air-conditioning demand. It typically sits in the engine bay fuse/relay box or mounted near the radiator and is connected via a short harness that ensures secure electrical contact. Faulty relays produce symptoms such as engine overheating, fans that do not run, fans stuck on continuously, or intermittent fan operation.
Replacement Procedure
- Park Vehicle Safely And Remove Ignition Key.
- Disconnect The Negative Battery Terminal Before Any Electrical Work.
- Locate The Relay: Check The Engine Bay Fuse/Relay Box Or Mounting Bracket Near The Radiator.
- Remove Any Protective Covers And Unplug The Electrical Connector From The Relay Pigtail.
- Unscrew Or Unclip The Relay Assembly From Its Mounting And Replace With The New Relay/Pigtail Assembly.
- Ensure The Connector Is Fully Seated And Wiring Is Routed Clear Of Moving Parts And Hot Surfaces.
- Reconnect The Battery, Start The Engine, And Verify Fan Operation At Operating Temperature And With A/C On.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën Berlingo B9; Citroën Berlingo III; Citroën C4 Picasso; Citroën C5; Peugeot 207; Peugeot Partner III; Peugeot Partner Tepee
- Product Codes: 9652021180, 9652021280, 9662570980, 6500EJ
- Other Numbers: 6500e, 6500EJ
Installation Recommendations
- Always Disconnect The Battery Before Starting Work To Prevent Short Circuits.
- Inspect The Connector And Wiring For Corrosion, Heat Damage Or Broken Pins; Replace Or Repair Damaged Wiring Before Fitting The New Relay.
- Use Proper Tools To Avoid Damaging Mounting Points; Ensure The Relay Is Firmly Secured And Connectors Are Moisture‑Protected.
- After Installation, Check Related Fuses And Test Fan Operation Under Load (Engine Warm/AC On) To Confirm Correct Function.
- Keep Replacement Part Numbers Handy (9652021180 / 9652021280 / 9662570980 / 6500EJ) — These Are Frequently Used As Search Terms By Mechanics And DIYers.
Why This Part Most Commonly Fails
- Contact Wear And Pitting: Repeated High‑current Switching Causes Mechanical Contact Degradation Over Time.
- Corrosion And Moisture Ingress: Engine Bay Exposure Can Corrode Pins Or Connector Contacts, Leading To Intermittent Or No Operation.
- Overheating And Electrical Overload: Excessive Current Through A Stuck Fan Or Faulty Wiring Can Damage The Relay.
- Vibration And Mechanical Stress: Long‑term Vibration May Loosen Connections Or Cause Cracks In The Housing.
- Poor Ground Or Loose Connector: Voltage Drop At The Relay Socket Leads To Unreliable Fan Control.
This relay with pigtail is a practical repair item for workshops and independent mechanics restoring reliable cooling-fan operation on affected Citroën and Peugeot models. Searching by OE codes (e.g. 9652021180 / 6500EJ) will help you quickly find the correct replacement.
