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Change Car Accessory Belt Kit

Easy 1h00–2h30 ~100–250£
Estimated time 1h00–2h30
Estimated labour cost ~100–250£
Difficulty Easy
Renew the air-conditioning compressor drive belt 1h30–2h30
Renew the ancillary drive belt 1h00–2h30
Renew the engine oil and filter 0h30–0h45

What is a BMW X6 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 X6 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 X6 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.

3 models covered

Model Year Range Engines covered Fuel
X6 2008-2014 2008-2014 30dX Diesel (M57D30N2), 30dX Diesel (N57D30A), 35iX Petrol (N54B30A), 35iX Petrol (N55B30A), 40dX Diesel (N57D30B), 50iX Petrol (N63B44A), 50iX Petrol (N63B44A), M Petrol (S63B44A), M50dX Diesel (N57D30C) Diesel, Petrol
X6 2014-2019 2014-2019 M Petrol (S63B44B), xDrive 30d Diesel (N57D30A), xDrive 30d Diesel (N57D30A), xDrive 30d Diesel (N57D30A), xDrive 30d M Performance Diesel (N57D30A), xDrive 35i M Performance Petrol (N55B30A), xDrive 35i Petrol (N55B30A), xDrive 40d Diesel (N57D30B), xDrive 50i Petrol (N63B44B),… Diesel, Petrol
X6 2019-2025 2019-2025 M50d Diesel (B57D30C), M50i Petrol (N63B44D), xDrive 30d Diesel (B57D30A), xDrive 40d mHev 48V (MHEV),Diesel (B57D30B+JA1), xDrive 40i Petrol (B58B30C) 48V (MHEV), Diesel, Petrol