Change Car Spark Plugs Mercedes-Benz S-Class

Change Car Spark Plugs

Easy 1h30–6h00 ~150–600£
Estimated time 1h30–6h00
Estimated labour cost ~150–600£
Difficulty Easy
Vehicles
S-Class 1999-2006 13
  • 280, -L Petrol (112.922)
  • 320, -L, -LPG LPG,Petrol (112.944)
  • 350 4MATIC, -L Petrol (112.975)
  • 350, -L, -LPG LPG,Petrol (112.972)
  • 430 4MATIC, -L, -LPG LPG,Petrol (113.948)
  • 430, -L, -LPG LPG,Petrol (113.941)
  • 500 4MATIC, -L, -LPG LPG,Petrol (113.966)
  • 500, -L, -Pullman, -LPG LPG,Petrol (113.960)
  • 55 AMG Kompressor, -L, -Pullman Petrol (113.991)
  • 55 AMG, L, -LPG LPG,Petrol (113.986)
  • 600 L, -Pullman Petrol (137.970)
  • 600 L, -Pullman Petrol (275.950)
  • 65 AMG L Petrol (275.980)
S-Class 2005-2013 12
  • 300 Petrol (272.946)
  • 350 4MATIC, -LPG LPG,Petrol (272.975)
  • 350, -4MATIC Petrol (276.950)
  • 350, -LPG LPG,Petrol (272.965)
  • 400 Hybrid Electricity,Petrol (272.974)
  • 450 4MATIC Petrol (273.924)
  • 450, -LPG LPG,Petrol (273.922)
  • 500, -4MATIC Petrol (278.932)
  • 500/550 4MATIC, -LPG LPG,Petrol (273.968)
  • 500/550, -LPG LPG,Petrol (273.961)
  • 63 AMG Petrol (156.984)
  • 63 AMG Petrol (157.980)
S-Class 2013-2020 8
  • 320 Petrol (276.824)
  • 400 4MATIC Petrol (276.824)
  • 450, -4MATIC Petrol (276.824)
  • 500/550, -4MATIC Petrol (278.929)
  • 560, -4MATIC Petrol (176.980)
  • 600, -Maybach Petrol (277.980)
  • 63 AMG, -4MATIC Petrol (157.985)
  • 65 AMG Petrol (279.980)
S-Class 2021-2025 1
  • 500 4MATIC 48V (MHEV),Petrol (256.930)
S-Class Coupe/Cabrio 2014-2020 5
  • 400/450 4MATIC Petrol (276.824)
  • 500/550, -4MATIC Petrol (278.929)
  • 63 AMG 4MATIC Petrol (177.980)
  • 63 AMG, -4MATIC Petrol (157.985)
  • 65 AMG Petrol (279.980)

What is the role of Mercedes-Benz S-Class spark plugs?

The spark plug generates a spark at the precise moment needed to ignite the air/fuel mixture in the combustion chamber of petrol (or LPG) engines. The engine management system controls ignition timing.

When should you change your Mercedes-Benz S-Class spark plugs?

Manufacturers provide replacement recommendations; refer to your vehicle maintenance booklet. Generally replace every 60,000 km (45,000 km for severe use). Some vehicles with long-life plugs (titanium, platinum, iridium) can go 100,000–150,000 km.

How do I know if I need to change my Mercedes-Benz S-Class spark plugs?

Via the EOBD system (mandatory since 2001 on petrol cars), faulty spark plugs will trigger fault codes, typically P0301–P0304 (misfire, cylinders 1–4). Symptoms include: difficulty starting, misfires, reduced engine power, increased fuel consumption.

Is it difficult to change Mercedes-Benz S-Class spark plugs?

Difficulty level 2/5: technically easy but requires specific tools (spark plug wrench, torque wrench). Key points: wait for cold engine, clean plug well with compressed air before removal, never use a dropped plug, do not grease threads, hand-tighten then torque to specification.

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View your S-Class maintenance plan (keep the S-Class token) →

5 models covered

Model Year Range Engines covered Fuel
S-Class 1999-2006 1999-2006 280, -L Petrol (112.922), 320 CDI Diesel (613.960), 320 CDI, -L Diesel (648.960), 320, -L, -LPG LPG,Petrol (112.944), 350 4MATIC, -L Petrol (112.975), 350, -L, -LPG LPG,Petrol (112.972), 400 CDI, -L Diesel (628.960), 400 CDI, L Diesel (628.960), 430 4MATIC, -L, -LPG LPG,Petrol (… Diesel, LPG, Petrol
S-Class 2005-2013 2005-2013 250 CDI BlueEFF Diesel (651.961), 300 Petrol (272.946), 320 CDI Diesel (642.930), 320/350 CDI 4MATIC Diesel (642.932), 350 4MATIC, -LPG LPG,Petrol (272.975), 350 BlueTEC 4MATIC Diesel (642.868), 350 BlueTEC Diesel (642.862), 350 CDI 4MATIC BlueEFF Diesel (642.932), 350 CDI BlueE… Diesel, Electricity, LPG, Petrol
S-Class 2013-2020 2013-2020 300 BlueTEC Hybrid Diesel,Electricity (651.921), 320 Petrol (276.824), 350 BlueTEC 4MATIC Diesel (642.867), 350 BlueTEC, -4MATIC Diesel (642.861), 350 d, -4MATIC Diesel (656.929), 400 4MATIC Petrol (276.824), 400 d, -4MATIC Diesel (656.929), 450 EQ Boost, - 4MATIC Petrol (256.93… Diesel, Electricity, Petrol
S-Class 2021-2025 2021-2025 350 d, -4MATIC Diesel (656.929), 500 4MATIC 48V (MHEV),Petrol (256.930) 48V (MHEV), Diesel, Petrol
S-Class Coupe/Cabrio 2014-2020 2014-2020 400/450 4MATIC Petrol (276.824), 500/550, -4MATIC Petrol (278.929), 63 AMG 4MATIC Petrol (177.980), 63 AMG, -4MATIC Petrol (157.985), 65 AMG Petrol (279.980) Petrol

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