GSF Group | Drivers issued March MOT warning, with key reason for failing test revealed

Drivers issued March MOT warning, with key reason for failing test revealed

25th February, 2026: Motorists are being urged to book their MOT tests now, with fresh data suggesting demand will surge in March, triggering longer waits and limited garage slots.

Experts at GSF Car Parts have analysed DVSA vehicle records and found March is forecast to be the busiest month on record for MOTs, with around 2.5 million tests expected nationwide, far higher than a typical month.

The spike is being driven by thousands of certificates expiring at the same time, as March is traditionally when drivers scramble to beat their deadline. Adding to the pressure are cars bought during the 2023 sales rebound following COVID, now due their first MOT.

Drivers don’t have to get caught in the March madness. They can take their MOT up to a month early and still keep the same renewal date next year, meaning those with a late-March deadline can dodge the rush without losing a single day. It’s a simple trick that saves the last-minute scramble for slots.

But it’s not just booking MOT slots that drivers should worry about, it’s making sure their car is ready to pass.

GSF’s data from last year’s MOT peak highlights the most common issues catching motorists out. Brake pads topped the list, with braking accounting for 26.7% of parts ordered by garages in October 2025 alone.

Braking issues were followed by other simple faults including lighting (9.8%), damaged or split windscreen wipers (4.2%), and other minor fixes, the kind of problems that can often be spotted and sorted in minutes for relatively little cost.

The figures reflect a consistent annual trend, with both March and October seeing a sharp spike in orders for common MOT-related fixes as testing demand hits its yearly high.

James Onions, Marketing and Communications Director, GSF Car Parts, said: “Driving without a valid MOT can land motorists with a fine of up to £1,000, but what’s surprising is how many failures come down to parts that cost less than a takeaway.

“In many cases, the most common MOT-related fixes, such as replacing a bulb or fitting new wiper blades, can cost as little as £1 if caught early.

“We’re urging drivers to check their MOT expiry date, carry out some simple checks and book their test in good time. Spending a relativley small amount of money now could save far more in re-test fees, penalties and unexpected repair bills.”

Without a valid MOT certificate, drivers are only legally allowed to travel to a pre-booked test appointment, meaning those who miss their expiry date could find themselves temporarily off the road.

Top 10 parts ordered by garages to resolve faults during MOT season: