Change Car Spark Plugs Mercedes-Benz CLA
Change Car Spark Plugs
| Estimated time | 1h30–2h30 |
|---|---|
| Estimated labour cost | ~150–250£ |
| Difficulty | Easy |
| Vehicles |
CLA 2013-2019 7
CLA 2019-2025 7
|
What is the role of Mercedes-Benz CLA 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 CLA 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 CLA 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 CLA 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.
2 models covered
| Model | Year Range | Engines covered | Fuel |
|---|---|---|---|
| CLA 2013-2019 | 2013-2019 | 180 CDI Diesel (607.951 (K9K)), 180, -LPG LPG,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), 220 CDI, -4MATIC Diesel (651.930), 250, -4MATIC Petrol (270.920), 25… | Diesel, LPG, Petrol |
| CLA 2019-2025 | 2019-2025 | 180 CDI Diesel (608.915), 180 D Diesel (654.920), 180 Petrol (282.914), 200 D Diesel (654.920), 200 Petrol (282.914), 220 D Diesel (654.920), 220, 4MATIC 48V (MHEV),Petrol (260.920), 250 e Electricity,Petrol (282.914), 250, 4MATIC 48V (MHEV),Petrol (260.920), AMG 35 Petrol (260.… | 48V (MHEV), Diesel, Electricity, Petrol |
