Technical Values
WARNING: This page is about a different variant/trim than selected.
| Location | Description | Type | Basic value | Tolerance 1 | Tolerance 2 |
|---|---|---|---|---|---|
| Brake booster gear ratio (i) | Factor | 5.5 | |||
| Brake disc diameter, front | Diameter | 350 mm | |||
| Brake disc diameter, rear | Diameter | 350 mm | |||
| Effective brake disc diameter, front | Diameter | 286, 6 mm | |||
| Effective brake disc diameter, rear | Diameter | 292 mm | |||
| Piston diameter in front brake calliper | Diameter | 30/32/34 mm | |||
| Piston diameter in rear brake calliper | Diameter | 28/30 mm | |||
| Effective brake pad area per wheel, front | Area | 212 cm2 | |||
| Effective brake pad area per wheel, rear | Area | 124 cm2 | |||
| Pad thickness, front | All | Measured value | 9.4 mm | ||
| Pad thickness, front (wear limit) | All | Measured value | 2 mm | ||
| Pad thickness, rear | All | Measured value | 11.2 mm | ||
| Pad thickness, rear (wear limit) | All | Measured value | 2 mm | ||
| Brake disc thickness, new (front) | All | Measured value | 34 mm | ||
| Brake disc thickness, new (rear) | All | Measured value | 28 mm | ||
| Brake disc wear limit, front | Minimum brake disc thickness (wear limit) is stamped on the brake disc hub. Example: Min. Th. 33.7 mm | Measured value | (Read off value on brake disc hub) X.XX mm | ||
| Brake disc wear limit, rear | Minimum brake disc thickness (wear limit) is stamped on the brake disc hub. Example: Min. Th. 27.7 mm | Measured value | (Read off value on brake disc hub) X.XX mm | ||
| Wear limit: Surface changes in front and rear brake discs | Wear limit: Connected surface fracture > 1 cm2 and/or surface roughness of brake disc > 80 micrometer. Replace PCCB brake discs on both sides of the axle. | Surface changes | Values and procedure for: 46 51 02 Checking PCCB brake discs/46 54 02 Checking rear PCCB brake discs. | ||
| Thickness tolerance of brake discs (max.) | All | Measured value | 0.02 mm | ||
| Lateral runout of brake disc (max.) | All | Measured value | 0.03 mm | ||
| Lateral runout of wheel hub (max.) |
All | Measured value | 0.03 mm | ||
| Lateral runout of brake disc when installed (max.) | All | Measured value | 0.06 mm | ||
| Push rod play | Measured at brake pedal plate | Measured value | approx. 1 mm | ||
| Diameter of parking-brake drum | Parking brake (electrically actuated, drum brake acting on the rear axle) | Diameter | 180 mm | ||
| Diameter of parking-brake drum (wear limit) | All | Diameter | 181 mm | ||
| Width of parking-brake shoe | All | Measured value | 24 mm |