Renault Captur Radiator: Specs, Fitment & Common Faults

On the Captur, 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: 214100078R (as quoted in catalogue listings — confirm via VIN) — aftermarket radiators Nissens 637627 / Valeo 701120

Accuracy note: Covers the Renault Captur (2013-2019) 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 637627 (510 x 398 x 16 mm, with gaskets/seals); Nissens 637624 (511 x 408 x 26 mm, with gaskets/seals); Valeo 701120 (398 x 510 x 16 mm, for vehicles without oil cooler, without coolant regulator); Denso DRM37002 (511 x 392 x 18 mm); NRF 58443 (510 x 407 x 26 mm); NRF 58444A (513 x 414 x 23 mm); NRF 58443A (510 x 407 x 24 mm); NRF 58444 (510 x 398 x 16 mm)
Core sizes & variants	510 mm wide core; 16 mm deep for the 0.9 TCe and 1.2 TCe petrols, 26 mm for the 1.5 dCi diesel.
Genuine (OE) numbers quoted	214100078R
Fitment notes	Same radiator as the Clio IV; the Captur II from 2020 uses a different unit and must not be confused.

Accuracy note: genuinely worth knowing: automatic gearbox Capturs typically need a radiator with a built-in transmission oil cooler that manual versions don't have — ordering the manual-spec part for an automatic car will fit, but won't cool the gearbox oil properly.

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

If your car 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 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.

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.

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

It's an unglamorous part, but on the Renault Captur, the cooling system is behind almost every serious non-wear engine failure that could have been prevented. Spotting trouble here early is about as cheap an insurance policy as exists against a genuinely expensive repair bill.

Renault Captur Radiator: Watch: Replacing It

🎬 Watch: Renault Clio Diesel RADIATOR (sister (Renault Clio))

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closest video found; the radiator comes out the same way once the front panel and fan are off

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 Captur Radiator: What It Does

On the Renault Captur, heat from the engine coolant is shed to the surrounding air through the radiator, keeping engine temperature in a safe range. On automatic gearboxes, it often doubles up, cooling transmission fluid through a separate internal circuit too — which is why getting the exact part number right matters more here than on a simple heat exchanger.

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Renault Captur 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.