Change Car Accessory Belt Kit BMW X3

Change Car Accessory Belt Kit

Easy 0h30–3h00 ~50–300£
Estimated time 0h30–3h00
Estimated labour cost ~50–300£
Difficulty Easy
Renew the air-conditioning compressor drive belt 0h30–3h00
Renew the ancillary drive belt 0h30–3h00
Renew the engine oil and filter 0h30–0h45
Renew the air-conditioning compressor drive belt TR21 1h30
Renew the air-conditioning compressor drive belt TS81 0h45

What is a BMW X3 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 X3 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 X3 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.

View all compatible products →
View your X3 maintenance plan (keep the X3 token) →

3 models covered

Model Year Range Engines covered Fuel
X3 2004-2010 2004-2010 2.0D Diesel (M47D20T2oL), 2.0D Diesel (N47D20A), 2.0D Diesel (N47D20A), 2.0i, -LPG LPG,Petrol (N46B20B), 2.5i, -LPG LPG,Petrol (M54B25), 2.5si, -LPG LPG,Petrol (N52B25A), 3.0d Diesel (M57D30T2), 3.0d Diesel (M57D30TU), 3.0i, -LPG LPG,Petrol (M54B30), 3.0sd Diesel (M57D30T2TOP), … Diesel, LPG, Petrol
X3 2011-2018 2011-2018 sDrive 18d Diesel (B47D20A), sDrive 18d Diesel (N47D20C), sDrive 18i Petrol (N20B16A), xDrive 20d Diesel (B47D20A), xDrive 20d Diesel (N47D20C), xDrive 20d M Performance Diesel (B47D20A), xDrive 20i / sDrive- Petrol (N20B20A), xDrive 28i / sDrive- Petrol (N20B20A), xDrive 28i Pe… Diesel, Petrol
X3 2017-2024 2017-2024 M Competition Petrol (S58B30A), M xDrive Petrol (S58B30A), M40d Diesel (B57D30B), M40d mHev 48V (MHEV),Diesel (B57D30B), M40i mHEV 48V (MHEV),Petrol (B58B30B+JA1), M40i Petrol (B58B30A), M40i Petrol (B58B30B), sDrive 18d Diesel (B47D20A), sDrive 18d Diesel (B47D20B), sDrive 20i … 48V (MHEV), Diesel, Electricity, Petrol

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Easy 1h30
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Very easy 0h30
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Easy 0h45–1h30
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Very easy 0h30–1h30
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Technical 6h00–8h00
Change Car Fuel Filter

Change Car Fuel Filter

Easy 0h45–2h30
Change Car Glow Plugs

Change Car Glow Plugs

Intermediate 0h45–2h30
Change Car Oil Filter

Change Car Oil Filter

Easy 0h30
Change Car Particulate Filter (DPF)

Change Car Particulate Filter (DPF)

Easy 0h30–2h30
Change Car Shock Absorbers

Change Car Shock Absorbers

Easy 2h30–6h00
Change Car Spark Plugs

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Easy 0h30–2h00
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Very technical 2h30–18h00
Change Car Water Pump

Change Car Water Pump

Easy 1h00–7h00
View the service schedule for your X3 →