RENAULT Original Water/Oil Cooler Clio 2 X65 Cup & Clio 3 RS

What You Lose Without a High-Performance Original RENAULT Water/Oil Cooler

Thermal management is the pillar of reliability and performance on Renault Sport engines. Whether you own a mythical Clio 2 X65 Cup or a versatile Clio 3 RS, the water/oil cooler (or heat exchanger) is crucial. At Optimiz Access, specialists in sports vehicle maintenance, we know that neglecting this part risks **engine failure**.

The Dramatic Consequences of a Failing or Inadequate Cooler

A worn original cooler or a cheap imitation exposes you to major risks:

• Loss of lubrication: The engine oil overheats, losing its protective properties, leading to premature wear and a decrease in oil pressure. This is the shortest path to mechanical failure on the track or during intensive use.
• Fluid contamination: The cooler may leak internally, mixing water (coolant) and oil, causing irreversible damage to the engine and cooling system.
• Slow warm-up time: A poorly functioning cooler slows down the oil's ability to reach its optimal temperature, increasing cold wear.

Key Questions about the F4R Heat Exchanger (SEO Optimization)

Is this the same cooler for Clio 2 RS Cup and Clio 3 RS?

Yes. This original RENAULT cooler is designed to work on the F4R blocks of both generations of Clio RS. It ensures the same thermal transfer efficiency, allowing the engine oil to reach its ideal temperature faster, while stabilizing it during extreme conditions. It is the reliable part for the maintenance of your Clio Cup or Clio 3 RS.

When should the water/oil cooler be replaced?

Replacement is essential in case of an **external leak** (oil or coolant) or, more seriously, **fluid mixing** visible in the expansion tank or on the dipstick (emulsion). As a preventive measure for vehicles used for sports driving or with high mileage (over 90,000 miles), it is advisable to replace it to prevent failure. Remember also to change the cooler gaskets (complementary products available at the bottom of the page).

Where can I have this original cooler installed in Northern France?

Our Optimiz Access workshops, located near Cambrai in the Hauts-de-France region (near Lille, Valenciennes...), specialize in sports car mechanics. Entrust us with the installation to guarantee a professional fitting and the reliability of your Clio RS engine.

Original RENAULT Part and Worldwide Shipping

Ensure the longevity of your F4R engine. Order this original heat exchanger for fast and secure **delivery**, wherever you are.