Change Car Accessory Belt Kit BMW 5-Series
Change Car Accessory Belt Kit
| Estimated time | 0h30–3h00 |
|---|---|
| Estimated labour cost | ~50–300£ |
| Difficulty | Easy |
| Vehicles |
5-Series 1987-1997 6
5-Series 1996-2004 20
5-Series 2003-2011 30
5-Series 2009-2017 35
5-Series 2017-2025 33
|
| Renew the air-conditioning compressor drive belt | 0h30–3h00 |
| Renew the ancillary drive belt | 0h30–2h30 |
| Renew the engine oil and filter | 0h30–0h45 |
| Renew the engine oil and filter ( - 03/2007) | 1h00 |
| Renew the engine oil and filter (03/2007 - ) | 1h30 |
| Renew the ancillary drive belt Manual transmission | 0h30 |
| Renew the ancillary drive belt Automatic transmission | 0h30 |
| Renew the air-conditioning compressor drive belt Automatic transmission | 1h00 |
| Renew the air-conditioning compressor drive belt Manual transmission | 1h00 |
What is a BMW 5-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 5-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 5-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.
6 models covered
| Model | Year Range | Engines covered | Fuel |
|---|---|---|---|
| 5-Series 1981-1988 | 1981-1988 | 518 Petrol (M10B18), 518i Petrol (M10B18), 520i Petrol (M20B20), 520i Petrol (M20B20), 524td Diesel (M21D24), 525e Petrol (M20B27), 525i Petrol (M30B25), 528i Petrol (M30B28), 535i Petrol (M30B34), M5 Petrol (S38B35) | Diesel, Petrol |
| 5-Series 1987-1997 | 1987-1997 | 520i Petrol (M20B20M), 525i Petrol (M20B25M), 525i, -ix Petrol (M50B25), 530i Petrol (M30B30M), 535i Petrol (M30B35M), 535i Petrol (M30B35M) | Petrol |
| 5-Series 1996-2004 | 1996-2004 | 520d Diesel (M47D20 (204D1)), 520i Petrol (M52B20TU (206S4)), 520i, -LPG LPG,Petrol (M52B20 (206S3)), 520i, -LPG LPG,Petrol (M52B20TU (206S4)), 520i, -LPG LPG,Petrol (M54B22 (226S1)), 523i, -LPG LPG,Petrol (M52B25 (256S3)), 523i, -LPG LPG,Petrol (M52B25TU (256S4)), 525d Diesel (… | Diesel, LPG, Petrol |
| 5-Series 2003-2011 | 2003-2011 | 520d Diesel (M47D20T2), 520d Diesel (N47D20A), 520d Diesel (N47D20C), 520i (120/125 kW) Petrol (N43B20A), 520i Petrol (M54B22), 520i Petrol (N46B20B), 523i Petrol (N52B25A), 523i, -LPG LPG,Petrol (N52B25A), 523i, -LPG LPG,Petrol (N53B25A), 525d Diesel (M57D25TU), 525d Diesel (M5… | Diesel, LPG, Petrol |
| 5-Series 2009-2017 | 2009-2017 | 518d Diesel (B47D20A), 518d Diesel (N47D20C), 520d Diesel (B47D20A), 520d Diesel (N47D20C), 520d, -xDrive Diesel (N47D20C), 520d, -xDrive M Performance Diesel (B47D20A), 520d, -xDrive M Performance Diesel (N47D20C), 520d,-xDrive Diesel (B47D20A), 520i Petrol (N20B16A), 520i Petr… | Diesel, Petrol |
| 5-Series 2017-2025 | 2017-2025 | 518d Diesel (B47D20B), 518d, -mHev 48V (MHEV),Diesel (B47D20B), 520d, -mHev, -xDrive 48V (MHEV),Diesel (B47D20B+JA1), 520d, -mHev, -xDrive 48V (MHEV),Diesel (B47D20B+JA1), 520d, -xDrive Diesel (B47D20A), 520d, -xDrive Diesel (B47D20B), 520e Electricity,Petrol (B48B20A+GC1), 520i… | 48V (MHEV), Diesel, Electricity, Petrol |