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Change Car Accessory Belt Kit

Easy 0h30–6h00 ~50–600£
Estimated time 0h30–6h00
Estimated labour cost ~50–600£
Difficulty Easy
Renew the ancillary drive belt 0h30–6h00
Renew the engine oil and filter 0h45
Renew the air-conditioning compressor drive belt 2h30

What is a BMW X1 accessory belt?

The accessory belt (also called the auxiliary belt or serpentine belt) allows the engine to drive peripheral components such as the alternator, air conditioning compressor, power steering pump, and sometimes the water pump.

When should you change the BMW X1 accessory belt?

Typical replacement is every 60,000–120,000 km or 4–6 years. Signs of wear include: squealing noise (especially at start-up or in wet weather), visible cracks or fraying. Always replace the tensioner and any idler pulleys at the same time.

Is it difficult to change the BMW X1 accessory belt?

Difficulty level 2/5: technically easy. Key steps: note the belt routing before removal, release the automatic tensioner, slide off the old belt, replace tensioner and idler pulleys, route the new belt, release the tensioner to apply tension.

2 models covered

Model Year Range Engines covered Fuel
X1 2009-2015 2009-2015 s, xDrive 18d Diesel (N47D20C), s, xDrive 18d Diesel (N47D20C), s, xDrive 20d Diesel (N47D20C), s, xDrive 20d Diesel (N47D20C), s, xDrive 20d Diesel (N47D20C), s, xDrive 20i Petrol (N20B20A), s, xDrive 25d Diesel (N47D20D), sDrive 16d Diesel (N47D20C), sDrive 16i Petrol (N20B16A… Diesel, Petrol
X1 2015-2022 2015-2022 s, -xDrive 18d Diesel (B47C20A), s, -xDrive 18d Diesel (B47C20A), s, -xDrive 18d Diesel (B47C20B), s, -xDrive 20d Diesel (B47C20A), s, -xDrive 20d Diesel (B47C20B), s, -xDrive 20d Diesel (B47C20B), s, -xDrive 20d Diesel (B47C20B), s, -xDrive 20i Petrol (B48A20A), s, -xDrive 20i … Diesel, Electricity, Petrol