Front

The disc brake caliper:
- bolts to the front disc brake caliper anchor plate, which bolts to the front wheel spindle (E-250, E-350).
- bolts to the front wheel spindle (E-150).
- is a pin slider, single piston type (E-150).
- is a pin slider, dual piston type (E-250, E-350).
The caliper housing has a fluid inlet at the center of the bore. A square section seal fitted into an annular groove in the caliper bore seals against hydraulic pressure, while rubber boots seal the caliper pistons and caliper bore from contamination.

The brake disc shield:
- bolts to the front wheel spindle.
- protects the bearings and inboard surface of the brake disc and hub.

The pads are:
- contained within the front disc brake caliper anchor plate (E-250, E-350).
- held to the front disc brake caliper anchor plate abutments by disc brake anti-rattle clips.