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 Find Your Problem Now → 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.

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Frequently Asked Questions

What is the most common problem with the Hyundai i30?

The most frequently reported issue on the Hyundai i30 is DPF Blockage (CRDi Diesel). The 1.4 and 1.6 CRDi diesel i30 develops DPF blockages on short-journey use. Very common on fleet and company car examples.

How many Hyundai i30s are on UK roads?

There are an estimated 200,000+ Hyundai i30s currently on UK roads.

What tyres does the Hyundai i30 use?

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.

Will a warning light fail my Hyundai i30's MOT?

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.

Similar Issues on Other Models

Kia Ceed — air con compressor failure shows up here too Kia XCeed — dct gearbox judder shows up here too

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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