These groups combine equivalent MOT comments, such as the same tyre note on different corners. Counts are comment occurrences in the sample, not a percentage of cars.
Tyre wear
VehicleScore MOT data includes 128 advisory comments and 7 failure comments in this group. Seen as both an advisory and a failure reason. These are comment occurrences, not a share of all cars.
These MOT comments record tyres that were worn, damaged, or close to the legal tread depth when the car was inspected.
What to inspect
Check the tread depth and look for uneven wear, cracking, or damage on all four tyres.
Example MOT wording: NEARSIDE FRONT TYRE WORN CLOSE TO THE LEGAL LIMIT (4.1.E.1)
Emissions test issues
VehicleScore MOT data includes 44 failure comments in this group. Seen mainly as a failure reason. These are comment occurrences, not a share of all cars.
These MOT comments record an exhaust emissions result. They are counted separately from a warning lamp or a catalytic converter note.
What to inspect
Ask for the emissions printout and whether any repair followed a failed test.
Example MOT wording: EXHAUST EMISSIONS CARBON MONOXIDE CONTENT AFTER 2ND FAST IDLE EXCESSIVE (7.3.D.3)
Lambda sensor issues
VehicleScore MOT data includes 33 failure comments in this group. Seen mainly as a failure reason. These are comment occurrences, not a share of all cars.
These MOT comments record a lambda sensor reading or defect noted at the test.
What to inspect
Ask whether a sensor or emissions fault has been diagnosed since the test.
Example MOT wording: EXHAUST EMISSIONS LAMBDA READING AFTER 2ND FAST IDLE OUTSIDE SPECIFIED LIMITS (7.3.D.3)
Corrosion
VehicleScore MOT data includes 31 advisory comments in this group. Seen mainly as an advisory. These are comment occurrences, not a share of all cars.
These MOT comments record corrosion the tester could see on the body or structure. Corrosion already named on a spring, brake, or other component is counted with that component.
What to inspect
Inspect the underside, sills, and subframe for heavy corrosion, especially where an advisory mentions it.
Example MOT wording: NEARSIDE REAR BRAKE PIPE CORRODED, COVERED IN GREASE OR OTHER MATERIAL (1.1.11 (C))
Coil spring issues
VehicleScore MOT data includes 26 advisory comments in this group. Seen mainly as an advisory. These are comment occurrences, not a share of all cars.
These MOT comments record coil springs that were corroded, fractured, or otherwise defective. They are counted separately from shock absorbers.
What to inspect
Look for a broken or heavily corroded spring and compare the ride height on both sides.
Example MOT wording: OFFSIDE FRONT COIL SPRING CORRODED (5.3.1 (B) (I))
Oil leak
VehicleScore MOT data includes 22 advisory comments in this group. Seen mainly as an advisory. These are comment occurrences, not a share of all cars.
These MOT comments record an oil leak noted by the tester. Shock absorber misting is counted as a damper issue, not as an engine oil leak.
What to inspect
Look under the engine for fresh oil, and check the oil level.
Example MOT wording: OIL LEAK, BUT NOT EXCESSIVE (8.4.1 (A) (I))
Exhaust
VehicleScore MOT data includes 11 advisory comments and 7 failure comments in this group. Seen as both an advisory and a failure reason. These are comment occurrences, not a share of all cars.
These MOT comments record exhaust leaks, insecurity, or other exhaust defects found at inspection.
What to inspect
Listen for blowing from the exhaust and look for corrosion or loose mounts.
Example MOT wording: EXHAUST HAS A MINOR LEAK OF EXHAUST GASES (7.1.2)
Parking brake faults
VehicleScore MOT data includes 14 failure comments in this group. Seen mainly as a failure reason. These are comment occurrences, not a share of all cars.
These MOT comments record a parking brake that did not hold well enough or had a component defect.
What to inspect
Test that the parking brake holds the car on a slope and releases cleanly.
Example MOT wording: PARKING BRAKE: EFFICIENCY BELOW REQUIREMENTS (3.7.B.7)