MOT defects: Hydraulic brake callipers
Brakes
12 defects: 6 dangerous, 6 major. 2 can be given as an advisory instead.
| Certificate wording | Severity | As an advisory | Inspection manual |
|---|---|---|---|
| Hydraulic brake callipers cracked and braking performance affected | dangerous | None | Actuator cracked or damaged and braking performance affected |
| Hydraulic brake callipers damaged and braking performance affected | dangerous | None | Actuator cracked or damaged and braking performance affected |
| Hydraulic brake callipers leaking and braking performance affected | dangerous | None | Actuator leaking and braking performance affected |
| Hydraulic brake callipers inadequately mounted and braking performance affected | dangerous | None | Actuator insecure or inadequately mounted and braking performance affected |
| Hydraulic brake callipers insecurely mounted and braking performance affected | dangerous | None | Actuator insecure or inadequately mounted and braking performance affected |
| Hydraulic brake callipers excessively corroded and likely to crack | dangerous | None | Actuator excessively corroded and likely to crack |
| Hydraulic brake callipers cracked | major | None | Actuator cracked or damaged and braking performance not affected |
| Hydraulic brake callipers damaged | major | slightly damaged but function not impaired | Actuator cracked or damaged and braking performance not affected |
| Hydraulic brake callipers leaking | major | None | Actuator leaking and braking performance not affected |
| Hydraulic brake callipers inadequately mounted | major | None | Actuator insecure or inadequately mounted and braking performance not affected |
| Hydraulic brake callipers insecurely mounted | major | None | Actuator insecure or inadequately mounted and braking performance not affected |
| Hydraulic brake callipers excessively weakened by corrosion | major | corroded but not seriously weakened | Actuator excessively corroded |
Other parts in Brakes
- Anti-lock braking system (8)
- Electronic braking system (2)
- Electronic stability control (8)
- Leaks (Air and vacuum systems) (1)
- Operation (Air and vacuum systems) (4)
- Pressure/vacuum build up (1)
- Servos (Air and vacuum systems) (3)
- Valves (Air and vacuum systems) (6)
- Air brake cylinder/actuator (14)
- Hydraulic brake cylinder (14)
- Brake performance not tested (2)
- Decelerometer (Parking brake efficiency) (2)
- Gradient tester (1)
- Plate brake tester (2)
- Rbt (2)
- Parking (secondary brake performance) (Decelerometer) (3)
- Parking brake efficiency (Decelerometer) (2)
- Parking brake performance (Decelerometer) (2)
- Parking (secondary brake performance) (Plate brake tester) (5)
- Parking brake efficiency (Plate brake tester) (2)
- Parking brake performance (Plate brake tester) (1)
- Parking (secondary brake performance) (Rbt) (5)
- Parking brake efficiency (Rbt) (2)
- Parking brake performance (Rbt) (1)
- Decelerometer (Service Brake Efficiency) (2)
- Service brake imbalance (Plate brake tester) (2)
- Service brake performance (Plate brake tester, Service Brake Efficiency) (2)
- Service brake imbalance (Rbt, Service Brake Efficiency) (2)
- Service brake performance (Rbt, Service Brake Efficiency) (2)
- Service brake performance (Decelerometer, Service brake performance, Brake performance, Brakes) (4)
- Service brake performance (Trikes, quads and pre-68 vehicles) (Decelerometer, Service brake performance, Brake performance, Brakes) (2)
- Service brake efficiency (Plate brake tester) (4)
- Service brake performance (Plate brake tester, Service brake performance) (6)
- Service brake efficiency (Rbt) (2)
- Service brake imbalance (Service brake performance) (2)
- Service brake performance (Rbt, Service brake performance) (6)
- Flexible brake hoses (17)
- Attachment (Brakes) (1)
- Condition (Brakes) (5)
- Leaks (Hand operated control valves) (1)
- Operation (Hand operated control valves) (1)
- Brake fluid (6)
- Master cylinder (4)
- Reservoirs (4)
- Servos (Hydraulic systems) (2)
- Valves (Hydraulic systems) (4)
- Load sensing valves (7)
- Air and vacuum systems (Low pressure warning) (2)
- Full power hydraulic systems (Low pressure warning) (2)
- Brake slack adjuster (8)
- Cable (5)
- Clevis joint (4)
- Lever (Mechanical brake components) (4)
- Linkage (Brakes) (6)
- Pivot (3)
- Relay lever (4)
- Rod (4)
- Brake discs (6)
- Brake drums (7)
- Brake linings (5)
- Brake pads (6)
- Additional braking device (7)
- Other components (Brakes) (10)
- Actuating linkage mounting (8)
- Master cylinder/servo mounting (8)
- Other braking system component (8)
- Park brake mechanism/associated mountings (8)
- Electronic parking brake (4)
- Lever (Parking brake control) (10)
- Air and vacuum systems (Pressure storage reservoirs) (10)
- Full power hydraulic systems (Pressure storage reservoirs) (7)
- Rigid brake pipes (9)
- Hand lever (5)
- Pedal (8)
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