Hyundai i20 Valves

Not automatically. The i20 sold in South Africa as PB, then GB, then the current BC3, and the PB and GB are different cars underneath despite the shared badge, so a part listed simply as "i20" is not automatically the right one — the generation code decides it. Send us the generation code off your VIN plate and we will confirm it either way before anything is dispatched.

We work backwards from the VIN: generation first, then engine family, then whether the car is pre- or post-facelift within that generation. On the i20 specifically, the PB and GB are different cars underneath despite the shared badge, so a part listed simply as "i20" is not automatically the right one — the generation code decides it.

Burnt is gradual: the sealing face erodes, compression drops on that cylinder and you get a persistent misfire. Bent is sudden and mechanical, and it means the pistons have met the valves. Same part, entirely different cause, and the diagnosis route is different too.

A consistent misfire on one cylinder, low compression on that cylinder under test, power down and a rough idle. A burnt exhaust valve often whistles under load. This is one to confirm with a test rather than a hunch, because either way the head is coming off and that is not a job to start on a guess.

Almost always a timing chain or belt failure — once timing goes out of sync the pistons meet the valves. On the 1.6 CRDi and 1.6 T-GDi engines a stretched chain jumping teeth is the usual route there. The practical lesson is that a cold-start rattle is worth investigating the week you hear it, not the month.

Yes, with two tests. A compression test finds the low cylinder; a leak-down test then tells you where the leak goes — hissing at the exhaust means an exhaust valve, at the intake means an intake valve, bubbles in the coolant means the head gasket. Both need a warm engine to be worth anything.

In practice a single valve becomes a head-off inspection, so labour dominates and a parts-only figure would mislead you. Our supplier network stocks Hyundai valves and head components. Request a free quote with your engine code and we will price a full head refurbishment rather than the valve on its own.