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Change Car Air Filter

Very easy 0h30–1h00 ~50–100£
Estimated time 0h30–1h00
Estimated labour cost ~50–100£
Difficulty Very easy
Renew both air filters 0h45
Renew the air filter 0h30

What is the role of the BMW 4-Series 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 BMW 4-Series 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 BMW 4-Series 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
4-Series 2013-2020 2013-2020 418d Diesel (B47D20A), 418d Diesel (N47D20C), 418i Petrol (B38B15A), 420d Diesel (B47D20A), 420d Diesel (N47D20C), 420d, -xDrive Diesel (B47D20A), 420d, -xDrive Diesel (N47D20C), 420d, -xDrive M Performance Diesel (B47D20A), 420d, -xDrive M Performance Diesel (N47D20C), 420i, -x… Diesel, Petrol
4-Series 2020-2025 2020-2025 420d mHev, -xDrive 48V (MHEV),Diesel (B47D20B+JA1), 420d mHev, -xDrive 48V (MHEV),Diesel (B47D20B+JA1), 420i Petrol (B48B16A), 420i, xDrive Petrol (B48B20A), 430d mHev, xDrive 48V (MHEV),Diesel (B57D30B+JA1), 430i, -xDrive Petrol (B48B20B), M4 Competition, -xDrive Petrol (S58B30… 48V (MHEV), Diesel, Petrol