Renault Clio Radiator: Specs, Fitment & Common Faults

On the Clio, a genuinely well-corroborated diagnosis: "95% chance it's the thermostat housing" — a cheap, common fix worth knowing.

Illustration for editorial purposes

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OEM Part Number: 214102590R (as quoted in catalogue listings — confirm via VIN) — aftermarket radiators Nissens 606760 / Valeo 735634

Accuracy note: Covers the Renault Clio (Mk4 2012-2019) as listed in the UK aftermarket catalogues. Radiators are sold by engine, gearbox and air-conditioning fitment, and one model usually has two or three different cores — a thicker core for diesels and automatics, a thinner one for small petrols — with different hose positions, so a radiator for the wrong engine will not connect up. The references below are UK aftermarket listings whose fitment lists name this generation, labelled by brand with the core size in mm; genuine numbers are those quoted against the listing. Check your engine code and whether the car has air conditioning against your VIN, and replace the coolant and bleed the system after fitting.

Radiators (aftermarket)	Nissens 606760 (510 x 389 x 26 mm, aluminium core with plastic tanks, 1.5 dCi); NRF 550218 (508 x 405 x 26 mm); Valeo 735634; Van Wezel 43012708; Hella 8MK 366 303-831; AKS Dasis 180037N
Core sizes & variants	The 1.5 dCi diesels take a 510 x 389 x 26 mm radiator. The petrol Clio IV (0.9 TCe, 1.2 16v and 1.2 TCe) uses a different radiator that was not confirmed, so petrol owners should check the part against the registration.
Genuine (OE) numbers quoted	214102590R
Fitment notes	Hose connections are 35 mm and the Nissens unit is supplied with gaskets and seals. The listed fitment runs to 2021 because the Clio IV stayed in production for some markets after the UK switched to the Clio V in 2019.

Accuracy note: genuinely worth knowing: Renault radiator part numbers for the Clio frequently change mid-generation as engines are updated or facelifted, so a part valid for an early build year may not fit a later one even within the same model name.

A Genuinely Well-Corroborated Diagnosis Worth Knowing: The Thermostat Housing — Renault Clio Radiator

If your Clio has the 0.9 or 1.2 TCe engine and you're chasing a slow coolant leak, this is genuinely worth knowing directly: one owner's own assessment after extensive research put it plainly — "95% chance it is thermostat housing." This is a well-documented, common failure point on these engines, and genuinely good news on cost: one documented repair came to around £85-100, a considerably cheaper fix than the anxiety of an unexplained coolant leak might suggest.

A genuinely useful diagnostic insight worth knowing: a coolant leak that seems to disappear entirely over summer, then returns once temperatures drop in winter, is a real, documented pattern — rubber components expand slightly when warm, which can temporarily seal a very small crack or hole, only for it to re-open as the material contracts in colder weather. If your leak seems to have "fixed itself" only to return months later, this genuinely explains why, rather than suggesting anything was wrong with how it was previously assessed.

It's also genuinely worth knowing you're not imagining a problem if this feels like a common complaint: multiple owners and independent motoring columns have confirmed that this generation of small turbocharged engines leaks coolant in significant numbers, and if a dealer is dismissive of a genuine, repeated coolant loss without a proper investigation, it's worth pushing back rather than accepting a simple "topped up, no fault found" response, particularly if you're being diligent about flagging it before it becomes a genuine overheating risk.

Renault Clio Radiator: The Part That Keeps Everything Else From Cooking

Few parts get less attention than this one, but on the Renault Clio, a neglected cooling system is behind the vast majority of avoidable serious engine failures. Noticing the early warning signs costs nothing and can save a genuinely large repair bill down the line.

Renault Clio Radiator: Watch: Replacing It

🎬 Watch: Renault Clio Diesel RADIATOR (older gen)

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Generation not stated; likely Clio 3 dCi, verify before linking

Before you buy: radiator size and design vary significantly by engine size, transmission type, and whether your car has air conditioning. Always confirm against your VIN before ordering.

Renault Clio Radiator: What It Does

On the Renault Clio, coolant runs through the radiator to shed engine heat into the airflow, keeping temperatures in check. On many automatics, a separate internal circuit inside the same unit also cools the transmission fluid — one more reason a mismatched part number causes more than just a cooling problem.

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Renault Clio Radiator: Faults, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Radiator Guide for the three common failure modes, confirming fitment against your VIN, and OEM vs aftermarket guidance.

More Renault Radiator

The same part, covered across other Renault models.