Volkswagen Polo Manual
Braking system Braking system
The braking system is of servo-assisted hydraulic, dual circuit type with discs at the front and self-adjusting drum brakes at the rear. The hydraulic circuit is split diagonally so that with the failure of one circuit, one front and rear brake remain operative. A load sensitive pressure regulator is incorporated in the rear hydraulic circuits on some models to prevent the rear wheels locking in advance of the front wheels during heavy application of the brakes. The regulator proportions the hydraulic pressure between the front and rear brakes according to the load being carried.
The handbrake operates on the rear wheels only and the lever incorporates a switch which illuminates a warning light on the instrument panel when the handbrake is applied. The same warning light is wired into the low hydraulic fluid switch circuit.
- Specifications
- General information
- Hydraulic system - bleeding
- Hydraulic pipes and hoses - renewal
- Front brake pads - renewal
- Rear brake shoes - renewal
- Brake disc - inspection, removal and refitting
- Rear brake drum - removal, inspection and refitting
- Front brake caliper - removal, overhaul and refitting
- Rear wheel cylinder - removal, overhaul and refitting
- Master cylinder - removal, overhaul and refitting
- Brake pedal - removal, overhaul and refitting
- Vacuum servo unit - testing, removal and refitting
- Vacuum servo unit non-return valve - removal, testing and refitting
- Handbrake - adjustment
- Handbrake lever - removal and refitting
- Handbrake cable - removal and refitting
- Rear brake pressure regulating valve - removal, refitting and adjustment
- Stop-light switch - removal and refitting
- Handbrake ''on'' warning light switch - removal and refitting






