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Change Car Accessory Belt Kit

Easy 0h30–4h00 ~50–400£
Estimated time 0h30–4h00
Estimated labour cost ~50–400£
Difficulty Easy
Renew the air-conditioning compressor drive belt 0h30–2h30
Renew the ancillary drive belt 0h45–4h00
Renew the engine oil and filter 0h30–0h45

What is a BMW X5 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 X5 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 X5 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.

4 models covered

Model Year Range Engines covered Fuel
X5 1999-2006 1999-2006 3.0d Diesel (M57D30), 3.0d Diesel (M57D30TU), 3.0i, -LPG LPG,Petrol (M54B30), 4.4i, -LPG LPG,Petrol (M62B44TU), 4.4i, -LPG LPG,Petrol (N62B44A), 4.6is, -LPG LPG,Petrol (M62B46), 4.8is, -LPG LPG,Petrol (N62B48A) Diesel, LPG, Petrol
X5 2006-2013 2006-2013 3.0d Diesel (M57D30T2), 3.0d, xDrive 30d Diesel (M57D30T2), 3.0sd Diesel (M57D30T2TOP), 3.0si, xDrive 30i, -LPG LPG,Petrol (N52B30A), 4.8i, xDrive 48i, -LPG LPG,Petrol (N62B48B), M Petrol (S63B44A), xDrive 30d Diesel (N57D30A), xDrive 30d Diesel (N57D30A), xDrive 35d Diesel (M57… Diesel, LPG, Petrol
X5 2013-2019 2013-2019 M Petrol (S63B44B), s, xDrive 25d Diesel (B47D20B), s, xDrive 25d Diesel (N47D20D), xDrive 30d Diesel (N57D30A), xDrive 30d Diesel (N57D30A), xDrive 30d M Performance Diesel (N57D30A), xDrive 35i M Performance Petrol (N55B30A), xDrive 40d Diesel (N57D30B), xDrive 40e Electricity… Diesel, Electricity, Petrol
X5 2018-2025 2018-2025 M Competition Petrol (S63B44B), M Petrol (S63B44B), M50d Diesel (B57D30C), M50i Petrol (N63B44D), s-, xDrive 40i Petrol (B58B30C), xDrive 25d Diesel (B47D20B), xDrive 30d Diesel (B57D30A), xDrive 30d mHev 48V (MHEV),Diesel (B57D30B+JA1), xDrive 30d mHev 48V (MHEV),Diesel (B57D30… 48V (MHEV), Diesel, Electricity, Petrol