Seat Ibiza Radiator: Specs, Fitment & Common Faults

A genuinely serious, well-known design flaw with real cost figures (£140 part, £600+ labour) — plus genuine consumer advice on fighting a dealer's first offer, backed by a real case that got repaired free.

Illustration for editorial purposes

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OEM Part Number: confirm via VIN — radiators (aftermarket) Nissens 652711 / Valeo 701522

Accuracy note: Covers the Seat Ibiza (6J 2008-2017) 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 652711 (630 x 416 x 23 mm, with gaskets/seals); Valeo 701522 (341 x 650 x 23 mm, for vehicles without oil cooler, without cap); NRF 53024 (650 x 308 x 26 mm, with attachment parts); Mahle CR 1096 000P (649 x 340 x 26 mm, manual, with air conditioning); Mahle CR 505 000S (630 x 415 x 23 mm, manual and automatic)
Core sizes & variants	Two main cores: 630 x 415 x 23 mm for the 1.2 and 1.4 petrols, and a 650 x 340 mm core (23 or 26 mm deep) for the 1.2 TSI, 1.6 TDI and cars with air conditioning.
Genuine (OE) numbers quoted	None quoted in catalogue listings — order a genuine unit against your VIN
Fitment notes	Shared with the Polo 6R and Skoda Fabia II, so VW-catalogued radiators fit; check depth and whether the old unit has an oil cooler before ordering.

Accuracy note: genuinely worth knowing: some Ibiza engines pair the radiator with an integrated oil cooler or a separate charge-air cooler depending on turbocharging — these aren't interchangeable, so confirm your exact engine spec before ordering.

Confirmed: A Genuinely Serious, Well-Known Design Flaw — With Real Cost Figures and a Fight Worth Having — Seat Ibiza Radiator

If your Ibiza has a TSI turbo petrol engine — including the 1.0-litre 3-cylinder unit, engine code CHZB among others — this is genuinely the most important thing to know before anything else on this page. The water pump and thermostat are combined into one integrated plastic housing, and on some engines this housing sits at the rear of the cylinder head, genuinely difficult to reach. This plastic becomes brittle and develops hairline cracks after ordinary heat cycling, leading to a coolant leak, and it's such a widely acknowledged issue that one long-term VAG owner described it directly as "a total nightmare... a well known fault on these engines."

Real UK cost figures worth knowing: the part itself has been quoted around £140, but labour alone has run to £600 or more given how much of the engine needs to come apart to reach the housing at the rear of the cylinder head. Genuinely useful consumer advice from an experienced owner: "be prepared to be fobbed off for a couple of weeks and escalate to their executive team... don't accept their initial offer and be prepared to fight." One documented case saw a Cupra at 32,000 miles — just out of warranty — have the repair carried out free of charge by SEAT after the owner phoned SEAT customer services directly rather than accepting the dealer's first answer.

Watch for a low coolant warning, a sweet smell after driving (especially noticeable getting out of the car or opening the bonnet once the engine's warmed through), or dried white or pink crystalline residue around the pump housing — all worth investigating promptly rather than simply topping up and continuing. It's also worth knowing that bleeding the cooling system properly after any repair to this area can genuinely be tricky, so insist on a proper bleed and a follow-up coolant level check rather than assuming the job's done once the new part is fitted.

Seat Ibiza Radiator: The Part That Keeps Everything Else From Cooking

It's an unglamorous part, but on the Seat Ibiza, 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.

Seat Ibiza Radiator: Watch: Replacing It

🎬 Watch: How to replace Volkswagen polo tsi 6r 6c 1.2 1.4 radiator and condenser (sister (vw polo 6r/6c, same pq25 platform))

Watch on YouTube ↗

Ibiza-badged alt with gen unstated: https://www.youtube.com/watch?v=19SDQE-WSGA

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.

Seat Ibiza Radiator: What It Does

On the Seat Ibiza, 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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Seat Ibiza 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 Seat Radiator

The same part, covered across other Seat models.