Ford Mondeo Radiator: Specs, Fitment & Common Faults

If your Mondeo has the 1.0 EcoBoost, a well-documented degas bottle issue applies directly — here's what to check either way.

Illustration for editorial purposes

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OEM Part Number: confirm via VIN — radiators (aftermarket) Nissens 620152 / Valeo 701295

Accuracy note: Covers the Ford Mondeo (Mk5 2014-2022) 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 620152 (670 x 449 x 16 mm, brazed aluminium with plastic tanks, 1.0 and 1.5 EcoBoost, 1.5 TDCi, 1.6 TDCi, 2.0 TDCi 150/180 including 4x4, 2.0 Hybrid); Valeo 701295; Denso DRM10121; NRF 59284; Ava FD2689; Van Wezel 18012714; Hella 8MK 366 307-801; Magneti Marelli 350213215800
Core sizes & variants	One 670 x 449 mm core covers the petrol, diesel and hybrid Mk5 range, manual and automatic alike
Genuine (OE) numbers quoted	None quoted in catalogue listings — order a genuine unit against your VIN
Fitment notes	34 mm inlet and outlet, supplied with gaskets and seals; Nissens describes it as a 5 mm-tube high-output core.

Accuracy note: genuinely worth knowing: automatic gearbox Mondeos 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.

If Your Mondeo Has the 1.0 EcoBoost, This Applies Directly

The Mondeo was offered with a 1.0 EcoBoost option alongside its more common larger engines, and if that's what your specific car has, the same degas bottle (coolant reservoir) cracking issue documented across the wider 1.0 EcoBoost family applies directly — serious enough that a UK Parliament transport committee document specifically references "failure of the degas pipe affecting 1.0L Fox engines" as a known issue. Watch for dropping coolant levels requiring more than one top-up between services, a sweet smell from the engine bay, or white smoke on starting.

If your Mondeo has a larger EcoBoost or diesel engine instead: this specific degas bottle issue doesn't apply in the same way, though general coolant system components (thermostat housing, water pump) can still develop age-related leaks on any engine — confirm your exact engine code before assuming either way.

Ford Mondeo Radiator: The Part That Keeps Everything Else From Cooking

Few parts get less attention than this one, but on the Ford Mondeo, 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.

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.

Ford Mondeo Radiator: Watch: Replacing It

🎬 Watch: Ford Mondeo Mk5 2l Diesel Radiator Fit

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2.0 TDCi.

Ford Mondeo Radiator: What It Does

On the Ford Mondeo, 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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Ford Mondeo 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 Ford Radiator

The same part, covered across other Ford models.