Change Car Accessory Belt Kit Mercedes-Benz GL
Change Car Accessory Belt Kit
Easy
1h00–1h30
~100–150£
| Estimated time | 1h00–1h30 |
|---|---|
| Estimated labour cost | ~100–150£ |
| Difficulty | Easy |
| Renew the ancillary drive belt | 1h00–1h30 |
| Renew the engine oil and filter | 1h30 |
What is a Mercedes-Benz GL 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 Mercedes-Benz GL 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 Mercedes-Benz GL 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.
2 models covered
| Model | Year Range | Engines covered | Fuel |
|---|---|---|---|
| GL 2006-2011 | 2006-2011 | 320 CDI 4MATIC Diesel (642.940), 350 BlueTEC 4MATIC Diesel (642.820), 350 CDI 4MATIC Diesel (642.822), 350 CDI 4MATIC Diesel (642.940), 420 CDI 4MATIC Diesel (629.912), 450 4MATIC Petrol (273.943), 450 4MATIC, -LPG LPG,Petrol (273.923), 450 CDI 4MATIC Diesel (629.912), 500/550 4… | Diesel, LPG, Petrol |
| GL 2012-2015 | 2012-2015 | 350 CDI 4MATIC, BlueTEC Diesel (642.826), 400 4MATIC Petrol (276.821), 500/550 4MATIC Petrol (278.928), 63 AMG Petrol (157.982) | Diesel, Petrol |
