Change Car Glow Plugs Lexus IS

Change Car Glow Plugs

Intermediate 1h00 ~100£
Estimated time 1h00
Estimated labour cost ~100£
Difficulty Intermediate
Vehicles
IS 2005-2013 2
  • 200d Diesel (2AD-FHV)
  • 220d Diesel (2AD-FHV)

What is the role of Lexus IS 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 Lexus IS 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 Lexus IS 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 Lexus IS 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 IS maintenance plan (keep the IS token) →

3 models covered

Model Year Range Engines covered Fuel
IS 1999-2005 1999-2005 200 Petrol (1G-FE), 300 Petrol (2JZ-GE) Petrol
IS 2005-2013 2005-2013 200d Diesel (2AD-FHV), 220d Diesel (2AD-FHV), 250 Petrol (4GR-FSE) Diesel, Petrol
IS 2013-2025 2013-2025 200T / 300 Petrol (8AR-FTS), 250 Petrol (4GR-FSE), 300h Electricity,Petrol (2AR-FSE) Electricity, Petrol

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