Change Car Spark Plugs Mercedes-Benz A-Class

Change Car Spark Plugs

Easy 1h00–3h00 ~100–300£
Estimated time 1h00–3h00
Estimated labour cost ~100–300£
Difficulty Easy
Vehicles
A-Class 1998-2005 5
  • 140, -L, -LPG LPG,Petrol (166.940)
  • 140, -L, -LPG LPG,Petrol (166.960)
  • 160, -L, -LPG LPG,Petrol (166.960)
  • 190, -L, -LPG LPG,Petrol (166.990)
  • 210 Evolution, -L, LPG LPG,Petrol (166.995)
A-Class 2005-2012 5
  • 150, -LPG LPG,Petrol (266.920)
  • 170, -LPG LPG,Petrol (266.940)
  • 180 BlueEFF, -LPG LPG,Petrol (266.940)
  • 200 Turbo Petrol (266.980)
  • 200, -LPG LPG,Petrol (266.960)
A-Class 2012-2018 8
  • 160 Petrol (270.910)
  • 180 Petrol (270.910)
  • 200 Petrol (270.910)
  • 220 4MATIC Petrol (270.920)
  • 250, -4MATIC Petrol (270.920)
  • 250, -4MATIC Petrol (270.920)
  • 45 AMG 4MATIC Petrol (133.980)
  • 45 AMG 4MATIC Petrol (133.980)
A-Class 2018-2025 11
  • 160 Petrol (282.914)
  • 180 Petrol (282.914)
  • 200, -4MATIC Petrol (282.914)
  • 200, -4MATIC Petrol (282.914)
  • 220, -4MATIC 48V (MHEV),Petrol (260.920)
  • 250, -4MATIC 48V (MHEV),Petrol (260.920)
  • 250e Electricity,Petrol (282.814)
  • 250e Electricity,Petrol (282.914)
  • 35 AMG, 4-MATIC 48V (MHEV),Petrol (260.920)
  • 45 AMG 4-MATIC+ Petrol (139.980)
  • 45 S AMG 4-MATIC+ Petrol (139.980)

What is the role of Mercedes-Benz A-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 A-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 A-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 A-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.

View all compatible products →
View your A-Class maintenance plan (keep the A-Class token) →

4 models covered

Model Year Range Engines covered Fuel
A-Class 1998-2005 1998-2005 140, -L, -LPG LPG,Petrol (166.940), 140, -L, -LPG LPG,Petrol (166.960), 160 CDI Diesel (668.940), 160 CDI Diesel (668.941), 160, -L, -LPG LPG,Petrol (166.960), 170 CDI Diesel (668.940), 170 CDI, -L Diesel (668.942), 190, -L, -LPG LPG,Petrol (166.990), 210 Evolution, -L, LPG LPG,… Diesel, LPG, Petrol
A-Class 2005-2012 2005-2012 150, -LPG LPG,Petrol (266.920), 160 CDI Diesel (640.942), 170, -LPG LPG,Petrol (266.940), 180 BlueEFF, -LPG LPG,Petrol (266.940), 180 CDI Diesel (640.940), 200 CDI Diesel (640.941), 200 Turbo Petrol (266.980), 200, -LPG LPG,Petrol (266.960) Diesel, LPG, Petrol
A-Class 2012-2018 2012-2018 160 CDI Diesel (607.951 (K9K)), 160 Petrol (270.910), 180 CDI Diesel (607.951 (K9K)), 180 CDI Diesel (651.901), 180 Petrol (270.910), 200 CDI Diesel (651.901), 200 CDI, -4MATIC Diesel (651.930), 200 Petrol (270.910), 220 4MATIC Petrol (270.920), 220 CDI, -4MATIC Diesel (651.930)… Diesel, Petrol
A-Class 2018-2025 2018-2025 160 Petrol (282.914), 160d Diesel (608.915), 180 48V (MHEV),Petrol (282.814), 180 Petrol (282.914), 180d Diesel (608.915 (K9K)), 180d Diesel (654.920), 200 48V (MHEV),Petrol (282.814), 200, -4MATIC Petrol (282.914), 200, -4MATIC Petrol (282.914), 200d Diesel (654.920), 220, -4MA… 48V (MHEV), Diesel, Electricity, Petrol

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