Ford Fiesta Radiator: Specs, Fitment & Common Faults

The 1.0 EcoBoost's plastic coolant reservoir has a well-documented cracking tendency — referenced even in a UK Parliament transport committee document.

Illustration for editorial purposes

Find Ford Fiesta Radiator Here!

Opens live listings in a new tab.

Ford Fiesta Radiator: OEM Part Number

Accuracy note: genuinely worth knowing: radiator core size and construction can differ between petrol and diesel Fiesta engines, and again between manual and automatic gearboxes where the automatic needs an integrated oil cooler circuit — confirm your exact engine code and transmission before ordering.

Manual gearbox, all engines	Standard radiator with no transmission cooling circuit
4-speed automatic (older generations)	Radiator includes a built-in internal transmission fluid cooler as a separate circuit within the same tank — genuinely a different part from the manual version, sharing the same Ford transmission oil cooler assembly design used across several other Ford models of the same era
Powershift (dual-clutch automatic, where fitted)	Uses a separate standalone transmission oil cooler rather than one integrated into the radiator tank — confirmed as a genuinely different cooling architecture from the older 4-speed automatic's built-in design

The 1.0 EcoBoost's Degas Bottle Is a Well-Documented Weak Point

Across the 1.0 EcoBoost family generally (primarily 2012-2017 production), the plastic degas bottle (coolant reservoir) and its connecting hoses have a well-documented tendency to develop hairline cracks as the plastic ages and heat-cycles over years of use — 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 Ford was asked to address. Watch for dropping coolant levels requiring more than one top-up between services, a sweet smell from the engine bay, or white smoke from the exhaust on starting — all worth investigating promptly rather than simply topping up and continuing to drive.

Worth knowing: a genuine UK recall (reference R/2020/089, 2020) also covered certain Kuga and Puma models specifically for a related coolant leak risk — worth checking your own registration via the DVSA recall checker even if your model wasn't part of that specific recall, since the underlying degas bottle weak point affects the wider 1.0 EcoBoost range.

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

Nothing about this component is glamorous, but on the Ford Fiesta, almost every serious engine failure that isn't wear-related traces back to a cooling system problem left unaddressed. Catching the early signs here is genuinely cheap insurance against a much bigger bill.

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 Fiesta Radiator: What It Does

The Ford Fiesta's radiator transfers heat from the engine coolant to the surrounding air, keeping engine temperature within a safe operating range. On automatic versions, it often also cools transmission fluid through a separate internal circuit — one more reason the correct part number matters so much here.

Find Ford Fiesta Radiator Here!

Opens live listings in a new tab.

Ford Fiesta 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.