Note: Individual characteristics are also given in the text of the Chapter and, if their implementation is mandatory, are highlighted in bold.
| General parameters | |
| Drive type | Hydraulic, dual circuit (with diagonal division) with vacuum booster. Electronic skid control system (ESP), brake assist system (BAS) and anti-lock brake system (ABS) |
| Braking mechanisms | Disc, ventilated, with fixed or floating caliper |
| Parking brake | With pedal-cable drive to the rear wheel brakes |
| Front wheel brakes | |
| Thickness of friction linings of brake shoes, mm | |
Models with floating caliper | |
| Nominal value (new block with underlay) | |
| 18.5 |
| 15.5 |
| Maximum permissible value (taking into account the substrate - for maintenance) | |
| 12 |
| 11 |
| Wear indicator triggering around | 2 |
Fixed Caliper Models | |
| Nominal value (new shoe including underlay) | 17.5 |
| Maximum permissible value (taking into account the substrate - for maintenance) | 11 |
| Wear indicator triggering around | 1.7 |
| Brake disc thickness, mm | |
Models with floating caliper | |
| Nominal value | 25 |
| Maximum permissible value | 23 |
| Maximum permissible value during maintenance | 23.5 |
Fixed Caliper Models | |
| Nominal value | 32 |
| Maximum permissible value | 29.4 |
| Maximum permissible value during maintenance | 30 |
| Rear wheel brakes | |
| Thickness of friction linings of brake shoes, mm | |
Models with floating caliper | |
| Nominal value (new shoe including underlay) | 15.5 |
| Maximum permissible value | |
| 11 |
| 5 |
Fixed Caliper Models | |
| Nominal value (new shoe including underlay) | 15.5 |
| Maximum permissible value | |
| 11 |
| 2 |
| Wear indicator triggering around | 1.7 |
| Brake disc thickness, mm | |
| Models with floating caliper | |
| Nominal value | 15 |
| Maximum permissible value | 13 |
| Maximum permissible value during maintenance | 13.5 |
| Fixed Caliper Models | |
| Nominal value | 14 |
| Maximum permissible value | 12 |
| Maximum permissible value during maintenance | 12.5 |
| Parking brake | |
| Control force for squeezing the foot brake pedal, N | 170 +70/ -50 |
| The number of ratchet clicks when the parking brake pedal is depressed | |
| Pedal assembly with retractable ratchet | 1 |
| Pedal assembly with release ratchet | 5 |
| Vacuum brake booster | |
| Vacuum booster diameter, mm | 279 |
| Gain factor | 5.6 |
| Pressure in brake lines (at vacuum depth of 0.75÷0.8 bar), bar | |
| When pressing the foot brake pedal forcefully: | |
| 9÷20 |
| 36÷48 |
| 53÷68 |
| 70÷85 |
| 82÷96 |
| Tightening force of threaded connections, N·m | |
| Wheel nuts | 150 |
| Master cylinder reservoir cap | 2 |
| Brake caliper bleeder valves | 18 |
| Nut securing left front powertrain mount support to engine bracket | 65 |
| Nuts securing the brake booster assembly to the engine compartment bulkhead | 25 |
| Brake line connection fittings to the brake master cylinder assembly | 20 |
| Nuts for fastening the brake master cylinder assembly to the brake booster unit | 25 |
| Brake line connection fittings to the ASR/ETS hydraulic modulator | 15 |
| Fittings for fastening flexible hoses to brake pipes | 18 |
| Brake hose connection fittings to calipers | 18 |
| Hollow bolts of nipple connectors for connecting brake hoses to calipers | 33 |
| Brake pad contact sensor mounting bolts on fixed calipers | 9 |
| Self-locking bolts for fastening the brake calipers of the front wheel brake mechanisms to the steering knuckles | 180 |
| Self-locking bolts for fastening the brake calipers of the rear wheel brake mechanisms to the hub assemblies | 115 |
| Parking brake pedal mounting bolts to front pillar | 12 |
| Self-locking bolts for mounting wheel sensors | 8 |
Text republished from the website: MercedesMan