Change Car Glow Plugs Mercedes-Benz E-Class

Change Car Glow Plugs

Intermediate 1h30–3h00 ~150–300€
Temps estimé 1h30–3h00
Coût estimé ~150–300€
Difficulté Intermediate
Motorisations
E-Class 1984-1996 2
  • 250 / 300 D TURBODIESEL, -TD Diesel (602.962)
  • 300 D TURBODIESEL, -TD Diesel (603.960)
E-Class 2002-2009 2
  • 300 CDI BlueTEC Diesel (642.920)
  • 320 CDI, -T Diesel (648.961)

What is the role of Mercedes-Benz E-Class 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 Mercedes-Benz E-Class 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 Mercedes-Benz E-Class 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 Mercedes-Benz E-Class 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).

Voir tous les produits compatibles →
Consultez le carnet d'entretien de votre E-Class →

2 générations couvertes

Génération Période Motorisations Carburant
E-Class 1984-1996 1984-1996 250 / 300 D TURBODIESEL, -TD Diesel (602.962), 280/300 E, -TE 24V, -LPG LPG,Gas (104.942), 300 / 260 E Gas (103.940), 300 CE, Cabrio Gas (103.983), 300 CE-24, Cabrio Gas (104.980), 300 D TURBODIESEL, -TD Diesel (603.960), 300 E, -TE Gas (103.983), 320 E, TE Gas (104.992) Diesel, Gas, LPG
E-Class 2002-2009 2002-2009 300 CDI BlueTEC Diesel (642.920), 320 CDI, -T Diesel (648.961) Diesel

Nos autres guides de réparation

Change Car Accessory Belt Kit

Easy 0h30–2h30

Change Car Air Filter

Very easy 0h30–0h45

Change Car Battery

Very easy 0h30–0h45

Change Car Cabin Filter

Very easy 0h30–0h45

Change Car Front Brake Discs and Pads

Easy 2h00–2h30

Change Car Front Brake Pads

Easy 1h00–1h30

Change Car Fuel Filter

Easy 0h30–1h30

Change Car Handbrake Cable

Very easy 0h30

Change Car Oil Filter

Easy 0h30–0h45

Change Car Rear Silencer

Easy 0h45–1h30

Change Car Shock Absorbers

Easy 3h00–6h00

Change Car Water Pump

Easy 2h30–6h00

Change Car Clutch

Technical 6h00–11h00

Change Car Particulate Filter (DPF)

Easy 0h30

Change Car Spark Plugs

Easy 0h30–1h00

Change Car Turbo

Very technical 3h30–7h00
Consultez le carnet d'entretien de votre E-Class →