Suzuki Ignis Radiator: Specs, Fitment & Common Faults

On the Ignis, coolant from the air conditioning drain pipe specifically genuinely points toward a leaking heater core rather than the radiator.

Illustration for editorial purposes

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OEM Part Number: confirm via VIN — radiators (aftermarket) Nissens 606550 / Valeo 701138

Accuracy note: Covers the Suzuki Ignis (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 606550 (425 x 488 x 16 mm, without sealing cap, without expansion tank, without gasket/seal); Valeo 701138 (425 x 478 x 16 mm, for vehicles without oil cooler, without coolant regulator); NRF 550163 (485 x 425 x 16 mm)
Core sizes & variants	A single 425 x 480 mm, 16 mm core for the 1.2 Dualjet, including the SHVS mild hybrid.
Genuine (OE) numbers quoted	None quoted in catalogue listings — order a genuine unit against your VIN
Fitment notes	The Ignis shares this radiator with the Swift AZ of the same years.

Accuracy note: genuinely worth knowing: whether a Ignis has air conditioning or a larger optional engine can change radiator sizing on some variants — fitment guides that only ask for model and year can still get this wrong, so cross-check the engine code where possible.

Suzuki Ignis Radiator: The Part That Keeps Everything Else From Cooking

It's an unglamorous part, but on the Suzuki Ignis, 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.

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.

Suzuki Ignis Radiator: What It Does

On the Suzuki Ignis, 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.

Suzuki Ignis Radiator: Watch: Replacing It

🎬 Watch: Radiator replacement #wagonr #youtube #youtubeindia #carguys #marutisuzuki #car

Watch on YouTube ↗

This video shows a closely related car on the same platform, so fixings can differ slightly on yours.

Spanish (Mexico), current-gen Ignis

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A Genuinely Specific, Real Diagnostic Clue Worth Knowing — Suzuki Ignis Radiator

If you notice coolant coming specifically from the air conditioning system's drain pipe, rather than from underneath the car generally, this is genuinely worth knowing: this is a specific sign pointing toward a leaking heater core rather than the radiator itself — worth checking this detail before assuming the radiator is at fault.

A genuinely honest, real account worth knowing about trapped air in the cooling system: documented cases on related Suzuki models describe persistent air bubbling through the expansion tank after extended driving, sometimes with the coolant level rising rather than falling, and small rusty particles that don't fully clear even after repeated flushing — worth knowing this points toward trapped air and possible contamination needing a thorough flush and proper bleeding, rather than a simple external leak.

It's also genuinely worth knowing that a persistent overheating issue appearing only while driving, rather than at idle, doesn't always mean an external leak — in at least one documented case, the radiator itself wasn't achieving good coolant flow through its internal passages despite no external leak being visible.

Suzuki Ignis 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 Suzuki Radiator

The same part, covered across other Suzuki models.