Change Car Glow Plugs Hyundai i20

Change Car Glow Plugs

Intermediate 1h30 ~150£
Estimated time 1h30
Estimated labour cost ~150£
Difficulty Intermediate
Vehicles
i20 2008-2014 4
  • 1.1 CRDi Diesel (D3FA)
  • 1.4 CRDi 16V Diesel (D4FC-L)
  • 1.4 CRDi Diesel (D4FC)
  • 1.6 CRDi 16V Diesel (D4FB-FL)
i20 2015-2020 2
  • 1.1 CRDi Diesel (D3FA)
  • 1.4 CRDi Diesel (D4FC)

What is the role of Hyundai i20 glow plugs?

Glow plugs are used in diesel engines to preheat the combustion chamber before starting, particularly in cold weather. Unlike petrol engines that use spark plugs to ignite the fuel, diesel engines rely on compression ignition. Modern glow plugs also remain active after starting to reduce emissions and noise during the warm-up phase.

When should you change your Hyundai i20 glow plugs?

Generally, glow plugs last between 80,000 and 160,000 km. Symptoms of failing glow plugs include: difficulty starting in cold weather, white or grey exhaust smoke on start-up, rough idle during warm-up, the glow plug warning light remaining illuminated, and increased fuel consumption.

How do I know if the Hyundai i20 glow plugs need changing?

Via the EOBD diagnostic system, faulty glow plugs will trigger fault codes (typically P0380–P0384 for glow plug circuit faults). Individual glow plug resistance can be measured with a multimeter (typically 0.5–2 ohms for a good plug).

Is it difficult to change Hyundai i20 glow plugs?

Difficulty level 3/5: intermediate. Glow plugs can seize in the cylinder head over time due to heat and corrosion, making removal difficult and risking breakage. Key steps: warm the engine first, apply penetrating oil, use the correct glow plug socket, unscrew carefully (do not force — a broken glow plug requires specialist extraction).

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View your i20 maintenance plan (keep the i20 token) →

3 models covered

Model Year Range Engines covered Fuel
i20 2008-2014 2008-2014 1.1 CRDi Diesel (D3FA), 1.2 16V Petrol (G4LA-5), 1.2, -LPG LPG,Petrol (G4LA), 1.4 CRDi 16V Diesel (D4FC-L), 1.4 CRDi Diesel (D4FC), 1.4 Petrol (G4FA), 1.6 16V, -LPG Petrol (G4FC), 1.6 CRDi 16V Diesel (D4FB-FL) Diesel, LPG, Petrol
i20 2015-2020 2015-2020 1.0 T-GDi Petrol (G3LC), 1.1 CRDi Diesel (D3FA), 1.2 16V 75 Petrol (G4LA), 1.2 16V 84, -LPG LPG,Petrol (G4LA), 1.4 CRDi Diesel (D4FC), 1.4 MPi Petrol (G4LC) Diesel, LPG, Petrol
i20 2020-2025 2020-2025 1.0 T-GDi, -MHEV 48V (MHEV),Petrol (G3LE), 1.0 T-GDi, -MHEV 48V (MHEV),Petrol (G3LF), 1.0 T-GDi, -MHEV 48V (MHEV),Petrol (G3LF), 1.2 MPi Petrol (G4LF), N (1.6 T-GDi) Petrol (G4FV) 48V (MHEV), Petrol

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