Change Car Accessory Belt Kit BMW 7-Series

Change Car Accessory Belt Kit

Easy 0h45–6h00 ~75–600£
Estimated time 0h45–6h00
Estimated labour cost ~75–600£
Difficulty Easy
Renew the air-conditioning compressor drive belt 0h45–6h00
Renew the ancillary drive belt 0h45–6h00
Renew the engine oil and filter 0h45
Renew the ancillary drive belt With air conditioning 6h00

What is a BMW 7-Series 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 7-Series 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 7-Series 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 7-Series maintenance plan (keep the 7-Series token) →

3 models covered

Model Year Range Engines covered Fuel
7-Series 2001-2008 2001-2008 730d Diesel (M57D30TU), 730d, Ld Diesel (M57D30T2), 730i, Li Petrol (M54B30), 730i, Li, -LPG LPG,Petrol (N52B30A), 735i, Li, -LPG LPG,Petrol (N62B36A), 740d Diesel (M67D39), 740i, Li Petrol (N62B40A), 745d Diesel (M67D44), 745i, Li, -LPG LPG,Petrol (N62B44A), 750i, Li, -LPG LPG,… Diesel, LPG, Petrol
7-Series 2008-2015 2008-2015 725d Diesel (N57D30A), 730d Diesel (N57D30A), 730d, -xDrive Diesel (N57D30A), 730d, -xDrive Diesel (N57D30A), 740d, -xDrive Diesel (N57D30B), 740d, -xDrive Diesel (N57D30B), 740i Petrol (N54B30A), 740i Petrol (N55B30A), 750d, -xDrive Diesel (N57D30C), 750i, Li, -xDrive Petrol (N… Diesel, Petrol
7-Series 2015-2025 2015-2025 725d Diesel (B47D20B), 725d, Ld Diesel (B47D20B), 730d, Ld, -xDrive Diesel (B57D30A), 730i, Li Petrol (B48B20B), 740d xDrive Diesel (B57D30B), 740e, Le iPerformance Electricity,Petrol (B48B20B+GC1), 740i, Li Petrol (B58B30A), 740i, Li, -xDrive Petrol (B58B30C), 750d, Ld, -xDrive… Diesel, Electricity, Petrol

Other repair guides

Change Car Battery

Change Car Battery

Very easy 0h45–1h00
Change Car Cabin Filter

Change Car Cabin Filter

Very easy 0h30–0h45
Change Car Front Brake Discs and Pads

Change Car Front Brake Discs and Pads

Easy 1h30
Change Car Front Brake Pads

Change Car Front Brake Pads

Easy 1h30
Change Car Handbrake Cable

Change Car Handbrake Cable

Very easy 0h30–0h45
Change Car Rear Silencer

Change Car Rear Silencer

Easy 1h00–2h30
Change Car Air Filter

Change Car Air Filter

Very easy 0h30–0h45
Change Car Fuel Filter

Change Car Fuel Filter

Easy 1h00–2h00
Change Car Glow Plugs

Change Car Glow Plugs

Intermediate 1h00–1h30
Change Car Oil Filter

Change Car Oil Filter

Easy 0h30
Change Car Particulate Filter (DPF)

Change Car Particulate Filter (DPF)

Easy 0h30–2h00
Change Car Shock Absorbers

Change Car Shock Absorbers

Easy 3h00–5h00
Change Car Spark Plugs

Change Car Spark Plugs

Easy 0h45–4h00
Change Car Turbo

Change Car Turbo

Very technical 6h00–29h00
Change Car Water Pump

Change Car Water Pump

Easy 2h30–9h00
View the service schedule for your 7-Series →