Checking thickness of the disc brake pads
- Injury and material damage due to impaired braking effect.
→ The brake pads must be replaced when the brake pad warning indicator lights up, but no later than when there is a residual pad thickness of 2 mm.
→ Brake discs must be replaced on reaching the wear limits.
- If brake pad wear is indicated by the warning light, the warning contact (sensor including line and plug connection) must also be replaced.
- Replacement of the warning contact can be avoided by replacing the brake pads no later than when the pad thickness is 2.5 mm -arrows- . See Fig 1.
- Warning contacts must be replaced if the core of the line is worn.
- However, if only the plastic part of the warning contact is worn, there is no need to replace it.
- Material damage to the brake discs.
→ Use assembly aids (assembly pins) to exclude any possibility of heavy contact of the wheel with the brake disc. The assembly aids (assembly pins) are located in the luggage compartment.
1. To check the brake pads, remove the wheels. Before removal/installation of wheel, screw the assembly aids (assembly pins) -see illustration- , instead of two wheel bolts, into the wheel hub. During removal, first remove the three remaining wheel bolts and remove the wheel carefully without touching the brake discs. See Fig 2.
2. Visually inspect the brake pads for wear.