Quick Facts — Hyundai i30

Est. On UK Roads
200,000+
Years Made
2007–present
Common Engines
1.0 T-GDi, 1.4 T-GDi, 1.5 T-GDi, 2.0 T-GDi (N), 1.4 CRDi, 1.6 CRDi

6 Most Common Hyundai i30 Problems

These are the faults most frequently seen on the Hyundai i30 by UK garages — ranked by how commonly they occur and what they cost to fix.

1
DPF Blockage (CRDi Diesel)
High Priority
The 1.4 and 1.6 CRDi diesel i30 develops DPF blockages on short-journey use. Very common on fleet and company car examples.
💷 Typical repair cost: £100–£1,000
2
DCT Gearbox Judder (T-GDi)
Watch
The 7-speed DCT on T-GDi petrol i30 models can judder in slow traffic. Software updates from Hyundai usually resolve it.
💷 Typical repair cost: £0–£1,500
3
EGR Valve Failure (CRDi)
Watch
High-mileage diesel i30s develop EGR carbon buildup causing rough running, hesitation and EML.
💷 Typical repair cost: £200–£500
4
Carbon Buildup on Intake Valves (T-GDi)
Watch
Direct injection T-GDi engines accumulate carbon on intake valves over time — walnut blasting is the remedy.
💷 Typical repair cost: £250–£550
5
Rear Suspension Bush Wear
Low Priority
Worn rear suspension bushes cause a clunking noise on higher-mileage i30s.
💷 Typical repair cost: £100–£300
6
Air Con Compressor Failure
Low Priority
AC compressor failures on older i30 models — no cold air and occasional rattling.
💷 Typical repair cost: £200–£550

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Hyundai i30 — MOT Tips

DPF warning is an automatic fail on diesel i30s. DCT warning lights are MOT-relevant. Check EML on T-GDi models — carbon buildup can trigger misfire codes. The i30 N should have its brake fluid checked — track use depletes it quickly.

Engine management light on before your MOT? It's an automatic fail. Run a MotorLoom diagnostic for £1.99 to get the likely cause and repair cost before booking the test.

Hyundai i30 Tyres

Most Hyundai i30 models run 195/65 R15 or 205/55 R16 or 225/40 R18 depending on trim level and year. Always check the placard inside the driver's door for the exact size for your vehicle.

Summary

The i30 is a reliable, practical and well-equipped family hatchback. DPF management on diesel models is the key maintenance area. The i30 N is a genuinely brilliant hot hatch. Newer MK3 examples with the 5-year warranty are excellent value.

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