This replacement radiator cooling fan is a direct-fit electric unit designed for Citroën and Peugeot compact models. Built to restore proper engine temperature control and air flow through the radiator and condenser, it is ideal for professional garages and experienced DIY mechanics searching by OE number (e.g. 9801666680). Reliable cooling fan performance prevents overheating, supports air conditioning efficiency and keeps engine management operating within safe temperature limits.

Function

The cooling fan assembly draws or pushes air through the radiator and A/C condenser when vehicle speed alone is not sufficient to maintain coolant temperature. The fan is actuated by the vehicle’s thermal control strategy (ECU/temperature sensors) and the air conditioning system. It helps to: reduce engine temperature spikes at idle or slow traffic, improve A/C performance, and protect the engine from overheating during heavy load or towing.

Technical information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C3 III, Citroën C3 Aircross, Peugeot 208, Peugeot 2008
• Product codes: 9801666680
• Additional numbers: 980166680

Signs Of Failure

• Engine temperature rises at idle or in slow traffic.
• Air conditioning cooling is reduced when stationary.
• Audible noise from the fan motor (grinding or rattling).
• Fan does not run at all or runs intermittently.
• Blown fuses or visible corrosion at the connector.

Common Causes Of Failure

Cooling fans typically fail due to motor bearing wear, water or debris ingress, electrical faults (damaged connector, wiring, relay or fuse), or excessive load from an obstructed radiator/condenser. Corrosion and long-term heat cycles shorten motor life. Faulty temperature sensors or control modules may also prevent correct fan operation even when the motor itself is serviceable.

Replacement Procedure (Overview)

Designed for straightforward replacement by a trained technician or competent DIYer. Typical steps:

1. Ensure the engine is cool and the ignition is off.
2. Disconnect the negative battery terminal to avoid electrical short or accidental fan activation.
3. Access the fan assembly by removing the engine cover and/or lower splash tray as required for the specific model.
4. Unplug the electrical connector and remove mounting fasteners securing the fan/shroud to the radiator.
5. Remove the old unit and fit the new fan assembly, ensuring correct alignment of the shroud and secure mounting.
6. Reconnect the electrical connector and battery, then verify fan operation with the engine at operating temperature and with A/C engaged.

Avoid forcing the shroud or fan blades during installation and verify there is no contact with hoses or wiring after fitting.

Installation Recommendations

• Always disconnect the negative battery terminal before starting work.
• Inspect radiator, condenser and associated wiring/couplers while the fan is removed; clean any debris that could overload the new motor.
• Check related fuses, relays and fan control wiring if the new fan does not operate as expected.
• Use OEM-specified fasteners and routing to avoid vibration and premature wear.
• After installation, run the vehicle to normal operating temperature and confirm the fan engages and the A/C functions correctly.

Lifespan And Maintenance

Service life depends on operating conditions—exposure to road salt, debris and frequent stop-and-go traffic accelerate wear. Regular visual inspection of the fan blades, connector and surrounding area during routine maintenance helps catch issues early. If the motor shows signs of rubbing, noise or corrosion, replacement is recommended to avoid overheating-related damage.

Why Choose This Unit

Supplied to match OE form, fit and function for the listed Citroën and Peugeot models, this cooling fan is a practical solution when the original unit fails. Searching by the OE number 9801666680 or additional reference 980166680 will help you quickly find the correct replacement in parts catalogs and workshop systems.