Radiators for Suzuki Vehicles

Suzuki's small engines run compact cooling packs with little margin, and South African summer traffic is exactly the condition they have least of it in. Where a nameplate spans a naturally aspirated and a turbocharged derivative — the Vitara being the obvious case — the turbo car carries additional charge-air hardware that the 1.6 simply does not have. In practice the decision in front of you is whether swapping the one component that let go is enough, or whether the rest of the system has already been cooked alongside it.

Which derivative it is, whether the engine is turbocharged, and whether it has already run hot. With that we can usually confirm the right part quickly, and we'll tell you whether we're quoting new, aftermarket or good used rather than leaving you to guess.

Re-tanking is a real trade — the crimp tabs are opened, the tank and gasket are swapped and the tabs are re-crimped — but it needs proper tooling and a radiator specialist, and it is not something to attempt with epoxy. On a small car radiator most people end up replacing the unit because the labour to do the job properly outweighs the difference.

Not always. Many automatics run the gearbox oil cooler inside one of the radiator tanks, which adds two extra ports the manual unit does not have. Confirm your gearbox type before ordering, and give us the VIN if you are not sure — it is a common way to end up with a radiator that fits the mountings and nothing else.

It can be, but insist on a pressure test rather than a visual check. Look at the tank around the hose necks for hairline crazing, check the crimp line for weeping stains and look at the fins for corrosion, because a core that is half blocked will fit perfectly and still let the car run hot.

The radiator is one candidate among several. A thermostat stuck shut, a fan that is not switching on, a pressure cap that no longer holds, a collapsed lower hose and a blocked core all produce the same gauge reading. And after an overheat, have the head gasket assessed — combustion gases pushed into the coolant will keep pressurising the system and blow out whatever you replace.

It matters a great deal. Coolant carries the corrosion inhibitors that protect the aluminium and the water pump seal, and those inhibitors deplete with time rather than distance. Plain tap water leaves scale and offers no protection at all, and mixing incompatible coolant types can drop the inhibitors out as sludge.