Thinking about buying a used Hyundai i20 (2010–2021) in New Zealand? We've documented 8 known faults for this model spanning transmission, engine, electrical, and suspension. Each researched and verified before it's published. The most serious issues here are rated major. Two are set out in full below — the rest, with the symptoms, repair costs and checks for each, are free with an account.
8
Documented faults
Major
Most serious
$400–$1,600
Typical repair
4
Systems covered
Known Hyundai i20 faults
Every fault below is documented specifically for this model — researched and verified before it’s published.
01D7GF1 DCT Clutch Pack Judder on Hill Starts
MajorCommonTransmission $2,800–$6,500 to fix
The dual-clutch transmission in the i20 N GP exhibits clutch pack judder specifically during hill-start manoeuvres from cold, where the driver holds the vehicle against a gradient before release. The dry clutch design has a narrow thermal slip window; when the clutch modulates torque to prevent rollback on an incline, stick-slip oscillation develops in the clutch pack and transmits as a pronounced shudder through the driveline and cabin. The fault is most noticeable in the first 5-15 minutes of cold-weather operation. Hyundai has released TCU calibration updates to refine clutch slip modulation during hill-hold, and persistent cases require dual-clutch module replacement under the powertrain warranty.
Symptoms to notice
Vibration or shuddering through the driveline when pulling away uphill from cold
Judder transmitted through the gear lever, seats, and steering wheel during hill engagement
Harsh or inconsistent clutch bite point on inclines when cold
TCU fault codes related to clutch slip or modulation stored in the module
Momentary rollback before the clutch catches during uphill departure
What to check
Conduct a cold-start hill-start test on a gradient of at least 8 degrees — note any shudder or vibration. If a workshop inspection is possible: Connect an OBD scan tool and check for TCU fault codes referencing clutch slip. Confirm via Hyundai dealer scan tool that the TCU software is at the latest released calibration version for the vehicle's build date and variant.
Where to look: Dual-clutch transmission — Clutch 1 dry clutch pack, hill-hold torque modulation zone
Ask the seller
“Has the TCU software been updated by a Hyundai dealer for the DCT calibration?”
“Does the car shudder or judder when pulling away uphill when cold?”
“Has the dual-clutch assembly been replaced or inspected under warranty?”
“Has the car been used frequently in hilly terrain?”
02i20 N 1.6T carbon build-up and hard-driven wear
MinorOccasionalEngine $400–$1,600 to fix
The current i20 sold here is the i20 N hot hatch with a 1.6 turbo GDI engine. As a direct-injection performance car it will collect carbon on the intake valves over time (a rough idle / misfire risk on GDI engines) and, because these are bought to be driven hard, clutches, brakes and tyres wear faster than on an ordinary hatch. It's a rare, new, low-volume model here so long-term fault data is thin — buy on service history and evidence of gentle warm-ups and cool-downs.
Symptoms to notice
Rough idle or occasional misfire (carbon)
Worn clutch on a manual
Heat-cracked or worn brakes and tyres
Track-day wear on the tyres' edges
What to check
Ask if the car has been tracked and how it's warmed up and cooled down. Check clutch bite, brake and tyre condition. Look for a full service history and any oil-consumption notes. Listen for a rough idle when warm.
Where to look: 1.6 turbo GDI engine intake valves; clutch, brakes and tyres
Ask the seller
“Has this car ever been tracked or launched repeatedly?”
“How are the clutch, brakes and tyres?”
“Is there a full service history?”
TransmissionMajor
EngineMajor
ElectricalMajor
ElectricalMajor
TransmissionMajor
SuspensionMinor
6 more documented faults on the Hyundai i20
Symptoms, what to check, where to look and what to ask the seller — for every fault above. Free with an account, no card needed. One account covers one vehicle, so make it the car you’re actually looking at.
This page covers the model. Enter the plate of the actual car you’re looking at and see its year, engine, safety rating and register flags — free, no account needed.
Like any used car, it depends on the specific example and its service history. Across the 8 documented faults for the Hyundai i20, the recurring problem areas are transmission, engine, and electrical. A Hyundai i20 with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.
What are the most common problems with a used Hyundai i20?
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We've catalogued 8 known faults for the Hyundai i20, covering transmission, engine, and electrical. Two are written out in full on this page. The rest — with the symptoms to notice, what to inspect, and typical repair costs for each — are free once you create an account.
How much do repairs cost on a Hyundai i20?
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Most single repairs on the Hyundai i20 fall between $400–$1,600 at NZ independent-workshop rates. Some of the 8 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.
Should I get a pre-purchase inspection on a Hyundai i20?
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Yes. A Hyundai i20 inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $17.90 far less than the cost of missing one of the faults on this page.