Description
Three-Way Cooling Relay For Citroën And Peugeot Vehicles
Product Description
Robust cooling fan relay supplied with a short pigtail wiring harness—designed for direct replacement in many Citroën and Peugeot models. This relay controls the electric cooling fan stages and ensures reliable thermal management of the engine and air-conditioning system. Ideal for professional workshops and skilled DIY mechanics who need a direct-fit replacement part often searched by product number (e.g. 9652021180, 6500EJ).
Benefits And Features
- Direct-fit replacement for standard PSA relay housings and connector layouts.
- Includes a piece of wiring harness to simplify installation and avoid cutting the original loom.
- Designed to switch fan circuits and manage staged fan operation to maintain optimal engine temperature.
- Typical application for vehicles with electric cooling fans and multi-stage fan control.
- Commonly searched by OEM and aftermarket codes for fast findability in parts catalogs.
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: Common OEM/aftermarket reference numbers used for cross-referencing in parts databases
Installation Recommendations
Follow these steps for a safe and reliable replacement:
- Disconnect the battery before starting work to prevent short circuits and protect vehicle electronics.
- Locate the relay in the engine-bay fuse/relay box or the dedicated fan control module area—consult the vehicle’s repair manual for exact location.
- Remove the cover of the relay box and note the position of the original relay and any retaining clips.
- Unplug the original relay connector and remove the relay. If connectors are corroded, clean contacts or replace connector as needed.
- Fit the new relay and connect the supplied pigtail harness if required, ensuring secure and insulated connections to the existing loom.
- Reattach the relay box cover, reconnect the battery, and verify fan operation by running the engine to operating temperature and/or switching on the air-conditioning.
Use proper tools and protective equipment. If unsure about electrical connections, consult a wiring diagram or a professional technician.
Most Common Causes Of Failure
- Contact Wear: Repeated switching cycles cause pitting and increased resistance on relay contacts.
- Heat And Vibration: Prolonged exposure to engine-bay heat and road vibration can degrade internal components and solder joints.
- Moisture And Corrosion: Water ingress or corroded terminals in the connector can interrupt signal flow or cause intermittent operation.
- Overload From Fan Motor: A failing or seized fan motor that draws excessive current can shorten relay life.
- Electrical Faults: Poor ground connections, damaged wiring, or short circuits in the fan circuit can cause relay failure.
Notes For Buyers
Searchable Product Codes: Many customers find this relay by entering the OEM numbers 9652021180, 9652021280, 9662570980 or the code 6500EJ into parts searches. Suitable for mechanics and experienced DIYers looking to restore reliable fan control and engine cooling.
