Change Car Spark Plugs Mercedes-Benz B-Class
Change Car Spark Plugs
| Estimated time | 1h30–3h00 |
|---|---|
| Estimated labour cost | ~150–300£ |
| Difficulty | Easy |
| Vehicles |
B-Class 2005-2011 6
B-Class 2011-2018 5
B-Class 2019-2025 5
|
What is the role of Mercedes-Benz B-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 B-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 B-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 B-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.
3 models covered
| Model | Year Range | Engines covered | Fuel |
|---|---|---|---|
| B-Class 2005-2011 | 2005-2011 | 150, -LPG LPG,Petrol (266.920), 170 NGT BlueEFF CNG,Petrol (266.960), 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, -LPG LPG,Petrol (266.980), 200, -LPG LPG,Petrol (266.960) | CNG, Diesel, LPG, Petrol |
| B-Class 2011-2018 | 2011-2018 | 160 CDI Diesel (607.951 (K9K)), 160 Petrol (270.910), 180 CDI Diesel (607.951 (K9K)), 180 CDI Diesel (651.901), 180 CGI, LPG LPG,Petrol (270.910), 200 CDI Diesel (651.901), 200 CDI, -4MATIC Diesel (651.930), 200 CGi Petrol (270.910), 200 NGT CNG,Petrol (270.920), 220 CDI Diesel … | CNG, Diesel, LPG, Petrol |
| B-Class 2019-2025 | 2019-2025 | 160 d Diesel (608.915 (K9K)), 160 Petrol (282.914), 180 D Diesel (608.915 (K9K)), 180 D Diesel (654.920), 180 Petrol (282.914), 200 D Diesel (654.920), 200 Petrol (282.914), 220 4MATIC 48V (MHEV),Petrol (260.920), 220 D Diesel (654.920), 250, -4MATIC 48V (MHEV),Petrol (260.920) | 48V (MHEV), Diesel, Petrol |
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