IsItAGoodCar
Reliability Guide

Common Problems with the
2020 Hyundai i30 (Gen 3)

A mid-2020 facelift brought sharper V-signature LED lighting, a 10.25-inch widescreen display and 48V mild-hybrid 1.0 and 1.5 T-GDi engines with clutch-by-wire iMT, plus a 280PS i30 N 8DCT update in 2021.

What changed for 2020

  • •1.5 T-GDi (159PS) 48V mild-hybrid replaced the 1.4 T-GDi, paired with 6-speed iMT or 7DCT
  • •Upgraded 10.25-inch central infotainment screen and 7-inch digital driver display on higher trims
  • •Facelifted i30 N gained optional 8-speed wet dual-clutch gearbox (N DCT) and forged 19-inch alloys

Common MOT watch-outs

  • !Uneven inner-shoulder front tyre wear, especially on 18-inch N Line and 19-inch i30 N wheels
  • !Gasoline Particulate Filter (GPF) warning lights on urban-only 1.0 and 1.5 T-GDi petrols
  • !Windscreen stone-chip damage in the swept area affecting ADAS forward camera calibration
3
Known Issues
1
Serious
1
Moderate
1
Minor

All Known Issues

1.6 CRDi Timing Chain Noise

SeriousEngine

Some diesel models develop a rattle from the timing chain, often due to extended oil change intervals or tensioner issues.

Est. Repair Cost: £600–£1,200
Warning Signs:

Rattle from the engine on cold start, Metallic ticking noise

What to Inspect:
  • Listen carefully to the engine from cold
  • Check oil change frequency
Verified by IsItAGoodCar Research Team

DCT Hesitation & Judder

ModerateGearbox & Transmission

The 7-speed dual-clutch transmission can be hesitant when merging or shudder in traffic. Software updates often help, but hardware wear is possible.

Est. Repair Cost: £0–£1,500
Warning Signs:

Shudder on take-off, Hesitation when accelerating from low speed

What to Inspect:
  • Full test drive through urban and motorway speeds
  • TCU update history
Verified by IsItAGoodCar Research Team

Infotainment screen freezing and Bluetooth dropouts

MinorElectrics & Electronics

The touchscreen media unit can lock up, reboot randomly or lose Bluetooth connections, especially on early 2017–2019 cars. Dealers often need to update the software or replace the head-unit SD card to resolve persistent glitches.

Est. Repair Cost: £0–£300
Warning Signs:

Touchscreen not responding or going black mid-drive, Navigation failing to load or freezing, Bluetooth phone or audio dropping out repeatedly

What to Inspect:
  • Run the media unit for the full test drive
  • Ask whether software or map updates have been applied
  • Check if the reversing camera display also glitches
Verified by IsItAGoodCar Research Team

Buying Tips for 2020 Hyundai i30 (Gen 3)

  • Check smooth clutch-by-wire engagement and engine-off coasting re-starts on 48V iMT manuals
  • Confirm the 48V mild-hybrid battery under the boot floor charges cleanly without dashboard errors
  • On i30 N models, inspect front brake discs, adaptive dampers and differential service history
2018–20192021
Check a 2020 Hyundai i30 (Gen 3) by Registration