Servos (Hydraulic systems): pre-2018 MOT
This is pre-2018 MOT wording. The defect categories changed on 20 May 2018.
Split across: Servos (Air and vacuum systems), Servos (Hydraulic systems).
18 pre-2018 fail items.
| Old wording | Inspection manual | Now |
|---|---|---|
| Servos servo modified and seriously weakened | A braking system component inappropriately repaired or modified. | Servos inoperative (dangerous) |
| Servos servo locking device missing | A braking system component retaining or locking device missing or insecure | Servos inoperative (dangerous) |
| Servos servo retaining device missing | A braking system component retaining or locking device missing or insecure | Servos inoperative (dangerous) |
| Servos servo locking device insecure | A braking system component retaining or locking device missing or insecure | Servos inoperative (dangerous) |
| Servos servo inappropriately repaired | A braking system component inappropriately repaired or modified. | Servos inoperative (dangerous) |
| Servos servo retaining device insecure | A braking system component retaining or locking device missing or insecure | Servos inoperative (dangerous) |
| Servos has no servo assistance | no dip can be felt when the engine is started, indicating vacuum assistance is not working satisfactorily | Servos inoperative (dangerous) |
| Servos servo leaking | a servo leaking | Servos inoperative (dangerous) |
| Servos servo insecurely mounted | A braking system component insecurely mounted | Servos inoperative (dangerous) |
| Servos servo missing when fitted as standard | a servo missing when fitted as standard | Servos inoperative (dangerous) |
| Servos servo damaged and its function is impaired | A braking system component damaged to the extent its function is impaired | Servos damaged and function impaired (major) |
| Servos servo corroded and excessively weakened | A braking system component excessively weakened by corrosion | Servos inoperative (dangerous) |
| Servos servo vacuum pipe deteriorated | a servo vacuum pipe deteriorated, kinked, split, collapsed or excessively chafed | Servos inoperative (dangerous) |
| Servos servo vacuum pipe collapsed | a servo vacuum pipe deteriorated, kinked, split, collapsed or excessively chafed | Servos inoperative (dangerous) |
| Servos servo vacuum pipe excessively chafed | a servo vacuum pipe deteriorated, kinked, split, collapsed or excessively chafed | Servos inoperative (dangerous) |
| Servos servo vacuum pipe split | a servo vacuum pipe deteriorated, kinked, split, collapsed or excessively chafed | Servos inoperative (dangerous) |
| Servos servo vacuum pipe kinked | a servo vacuum pipe deteriorated, kinked, split, collapsed or excessively chafed | Servos inoperative (dangerous) |
| Servos servo adjustment indicating rod shows brake adjustment is necessary. | adjustment indicating rod shows brake adjustment is necessary. | Servos inoperative (dangerous) |
Current names are the closest match by wording and part. The DVSA publishes no official old-to-new table.
Other pre-2018 parts in Brakes
- Abs (9)
- Additional braking devices (19)
- Cylinders/actuators (17)
- Hoses (Air and vacuum systems) (16)
- Pipes (Air and vacuum systems) (13)
- Pump/compressors (14)
- Reservoirs (Air and vacuum systems) (15)
- Servos (Air and vacuum systems) (17)
- Valves (Air and vacuum systems) (20)
- Leaks (Air and vacuum systems) (1)
- Operation (Air and vacuum systems) (4)
- Pressure/vacuum build up (2)
- Warning (Air and vacuum systems) (5)
- Brake performance not tested (1)
- Parking brake performance (Decelerometer (sp), Brake performance, Brakes) (1)
- Service brake performance (Decelerometer (sp), Brake performance, Brakes) (1)
- Brake operation (5)
- Parking brake operation (3)
- Parking brake performance (Tricycles, quadricycles and pre-68 vehicles, Decelerometer) (1)
- Service brake performance (Tricycles, quadricycles and pre-68 vehicles, Decelerometer) (1)
- Gradient hand brake (1)
- Brake imbalance (Plate brake tester) (1)
- Parking brake performance (Plate brake tester (sp), Brake performance, Brakes) (1)
- Service brake performance (Plate brake tester (sp), Brake performance, Brakes) (1)
- Operation (Brake performance) (3)
- Parking brake performance (Plate brake tester, Brake performance, Brakes) (3)
- Parking brake performance (Tricycles, quadricycles and pre-68 vehicles, Plate brake tester) (3)
- Service brake performance (Tricycles, quadricycles and pre-68 vehicles, Plate brake tester) (2)
- Brake Imbalance (1)
- Parking brake performance (Rbt (sp), Brake performance, Brakes) (1)
- Service brake performance (Rbt (sp), Brake performance, Brakes) (1)
- Transmission brake (1)
- Brake imbalance (Rbt) (1)
- Front wheels (10)
- Rear wheels (10)
- Parking brake performance (Tricycles, quadricycles and pre-68 vehicles, Rbt) (3)
- Service brake performance (Tricycles, quadricycles and pre-68 vehicles, Rbt) (2)
- Electronic stability system (10)
- Operation (Full power hydraulic systems) (1)
- Warning (Full power hydraulic systems) (4)
- Attachment (Brakes) (1)
- Condition (Hand operated control valves) (12)
- Operation (Hand operated control valves) (3)
- Brake back plates (5)
- Brake calipers (9)
- Brake discs (13)
- Brake drums (12)
- Brake linings (2)
- Brake pads (7)
- Wheel cylinder (7)
- Brake fluid warning lamp (2)
- Cylinders (10)
- Hoses (Hydraulic systems) (16)
- Master cylinder (5)
- Pipes (Hydraulic systems) (13)
- Pump (Brakes) (15)
- Reservoirs (Hydraulic systems) (13)
- Valves (Hydraulic systems) (20)
- Leaks (Hydraulic systems) (1)
- Operation (Hydraulic systems) (5)
- Locking devices (Brakes) (5)
- Brake slack adjuster (7)
- Cable (Mechanical components) (9)
- Clevis joint (9)
- Lever (Mechanical components) (11)
- Linkage (Mechanical components) (10)
- Pivot (8)
- Relay lever (8)
- Rod (Mechanical components) (10)
- Stationary pin (8)
- Condition (Parking brake) (20)
- Electronic parking brake (7)
- Fitment (Brakes) (2)
- Actuating linkage mounting (5)
- Master cylinder/servo mounting (5)
- Park brake mechanism/associated mountings (5)
- Restricted movement (1)
- Anti-slip (4)
- Condition (Pedal) (18)
- Cable (Pedal linkage) (2)
- Lever (Pedal linkage) (6)
- Linkage (Pedal linkage) (8)
- Rod (Pedal linkage) (3)
Dabers ANPR shows the full MOT history, defects included, for the car in any photo. How it works
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