Technical inspection prep: what fails cars most often

Periodic technical inspections are pass-or-fail events with little patience for surprises. Drivers who treat the test as the first look at the car often leave with a refusal certificate and a rushed return booking. A focused prep appointment the week before changes that.

High-frequency failure points

• Bulbs out on headlights, brake lights, indicators, or number-plate lamps
• Tires below legal tread depth or with uneven wear and damage
• Brake imbalance or worn pads and discs
• Cracked windscreen in the driver’s view
• Worn wiper blades and weak washer jets
• Horn not working, loose mirrors, or damaged seat belts

How to use a prep slot

Book an inspection-prep service and ask the garage to walk the common reject list. Fix simple electrical and tire issues first. Larger brake work can then be scheduled with enough time before the official date.

Bring previous certificates and any advisory notes from the last test. Advisories that were never addressed often become failures on the next visit. Online booking helps lock a prep bay before the inspection week fills up.