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Change Car Air Filter

Very easy 0h30–0h30 ~50£
Estimated time 0h30–0h30
Estimated labour cost ~50£
Difficulty Very easy

What is the role of the Smart Forfour air filter?

All the oxygen the engine needs passes through the air filter. Dust is abrasive and can cause premature engine wear. A clogged filter also causes increased fuel consumption and reduced performance.

When should you change the Smart Forfour air filter?

Generally replace every 20,000–40,000 km or every 1–2 years. In dusty environments or for frequent off-road use, replace more frequently.

Is it difficult to change the Smart Forfour air filter?

Difficulty level 1/5: very easy. The air filter is normally very accessible. The whole operation takes 5–10 minutes and requires no tools in most cases.

2 models covered

Model Year Range Engines covered Fuel
Forfour 2004-2006 2004-2006 1.1 12V 75 Petrol (134.910), 1.3 16V, -LPG LPG,Petrol (135.930), 1.5 12V CDi Diesel (639.939), 1.5 16V Petrol (135.950), 1.5 Turbo BRABUS Petrol (122.950) Diesel, LPG, Petrol
Forfour 2015-2025 2015-2025 0.9 Brabus Petrol (281.910 (H4B)), 0.9 Petrol (281.910 (H4B)), 1.0 Petrol (281.920 (H4D)), 1.0 Petrol (281.920 (H4D)) Petrol