Change Car Front Brake Discs and Pads Mercedes-Benz GL
Change Car Front Brake Discs and Pads
| Estimated time | 2h30–3h00 |
|---|---|
| Estimated labour cost | ~250–300£ |
| Difficulty | Easy |
| Renew both front brake discs | 2h30–3h00 |
| Renew both rear brake discs | 2h00–3h00 |
What is the role of brake discs and pads on a Mercedes-Benz GL?
When you press the brake pedal, hydraulic pressure pushes the brake caliper pistons, which press the brake pads against the rotating discs. Through friction, kinetic energy is converted into heat, slowing the vehicle.
When should you change the Mercedes-Benz GL front brake discs?
Brake discs should be measured with a micrometer; if below minimum thickness stamped on the disc, replacement is mandatory. Discs typically last 60,000–80,000 km. Always replace discs in pairs.
Why change discs and pads together on the Mercedes-Benz GL?
It is strongly recommended to change discs and pads together to ensure optimal braking performance. New pads on worn discs will not bed in properly, leading to reduced braking efficiency, noise, and uneven wear.
Is it difficult to change Mercedes-Benz GL front brake discs and pads?
Difficulty level 2/5: technically easy. Key steps: raise the vehicle, remove the wheel, unbolt the caliper and bracket, slide off the old disc, clean the hub face, fit the new disc, refit the bracket and caliper with new pads. Pump the brake pedal before driving.
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 |
