MOT Failure Rates Are Rising – If you’ve got a car in the UK, here’s a heads-up you can’t ignore — MOT failure rates are climbing, and fast. More than 2.5 million cars failed their MOT in the past year alone due to stuff that could’ve been caught early — think busted lights, dodgy brakes, or worn-out tyres. And yeah, we’re not talking rocket science here. Just basic maintenance most folks tend to skip.
In this guide, we’re breaking down why MOT failures are rising in 2025, what the most common red flags are, and how you can dodge a failed test and an unexpected repair bill. Whether you’re a teen learning to drive, a busy parent on the go, or a pro car owner — this one’s for you.
MOT Failure Rates Are Rising
| Key Details | Info |
|---|---|
| Primary Reason for Failures | Lighting & electrical (over 23%) |
| Other Common Issues | Brakes, tyres, suspension, visibility |
| Average MOT Failure Rate | Over 30% of tested vehicles fail at least once |
| Emissions-related Failures | Rising due to stricter environmental rules |
| Official MOT Check Resource | gov.uk/mot-check |
| Pro Tip | Fix previous advisories before your next MOT to avoid fails |
| Estimated Repair Cost Post-Failure | £150–£600 depending on issue |
| Professional Takeaway | Routine checks can prevent 60% of MOT failures |
Rising MOT failure rates in 2025 aren’t just a statistic — they’re a wake-up call. From lighting to emissions, tiny issues are causing big headaches for drivers across the UK. But here’s the good news — most of these failures are totally avoidable.
Take a few minutes each month to check your car, don’t ignore past advisories, and schedule your MOT with confidence. Use tech like apps or checklists, and stay ahead of seasonal wear. Your wallet, safety, and peace of mind will thank you.
What Is the MOT Test & Why It Matters
The MOT (Ministry of Transport) test is a legal requirement in the UK for cars older than three years. It’s kinda like your car’s yearly health check. The goal? Make sure it’s roadworthy, safe for the environment, and not falling apart at the seams.
And while a pass means you’re good to go, a fail means repairs, re-testing, and potentially a fine if you’re caught driving without a valid certificate. With failure rates hitting record highs, it’s clear a lot of Brits aren’t prepping right.
According to DVSA data, the top 5 causes of failure haven’t changed much — lighting, suspension, brakes, tyres, and visibility.
Top 10 Reasons Vehicles Fail MOT in 2025
1. Lighting & Electrical (23–25%)
Got a broken taillight or a dead headlamp? That’s the #1 reason for failure. Fixing this takes 10 minutes and costs less than a tenner.
2. Suspension Problems (18–19%)
If your car’s feeling bouncy or noisy on bumps, your shock absorbers or springs might be toast. These parts wear out faster on rough UK roads or if you’re hauling heavy loads often.
3. Brakes Not Up to Scratch (14–16%)
Worn-out brake pads or leaking brake fluid lines are not just MOT issues — they’re safety risks. Listen for grinding sounds or longer stopping distances.
4. Tyres Below Legal Limit (13%)
The UK legal tread depth is 1.6mm. Anything less, and you fail. Also, cracked or bulging tyres are an instant red flag.
5. Visibility Issues (8–10%)
Cracked windscreen? Smearing wipers? Empty washer fluid? These minor things can cause a fail. Visibility is vital, especially during rainy UK weather.
6. Chassis & Structure Damage (7%)
Rusty or damaged body panels, especially around the suspension mountings or undercarriage, raise red flags with testers.
7. Emissions Failures (6%)
Thanks to stricter pollution rules, especially for diesel cars, emission fails are climbing. A faulty catalytic converter or EGR valve could be the culprit.
8. Steering Issues (4%)
Loose steering, weird noises while turning, or unresponsive wheel play? That’s a big nope during testing.
9. Seat Belts (2%)
Frayed, torn, or non-functional seat belts get you an instant fail. Make sure they retract fully and lock when tugged sharply.
10. Illegible Number Plates (0.75%)
Dirty, cracked, or wrongly spaced number plates can trip you up.
Why Are MOT Failures Increasing in 2025?
Blame a few things:
- Post-COVID Maintenance Gaps: Many folks delayed repairs during lockdowns and haven’t caught up since.
- Stricter Testing Standards: DVSA has tightened the screws on emissions, lighting, and suspension assessments.
- Aging Vehicles: The average age of UK cars is now over 8.5 years, meaning more wear and tear.
- Neglecting MOT Advisories: Around 60% of advisories from a previous MOT aren’t fixed — leading to failures the next year.
- Rise in DIY Mods: Improper aftermarket mods, like exhaust changes or headlamp conversions, are causing more emissions and visibility fails.
- Weather Wear & Tear: Harsh winters and rainy seasons in the UK accelerate corrosion, affecting suspension, tyres, and brakes.
How to Avoid an MOT Failure – Pro Tips?
1. Do a Pre-MOT Inspection
Check all lights, tyre tread & pressure, wipers, washers, horn, seatbelts, and dashboard warning lights.
2. Book a Service Before the MOT
A full or interim service a few weeks before your test can catch hidden issues. Many garages offer MOT + Service combos that are cheaper together.
3. Fix Past Advisories
Your last MOT report likely came with advisories. Don’t ignore them. Fixing them early boosts your pass chances by 40–50%.
4. Clean Your Car
If your vehicle is too dirty, especially the number plates, a tester can refuse to test it. A quick clean can save you hassle.
5. Keep Records & Set Reminders
Store digital records of past MOTs and repairs. Set calendar reminders for MOT renewals and service checks.
6. Use an MOT Checklist App
Apps like the DVSA’s official MOT Reminders or third-party checklists can help you stay on top of what to inspect before the big day.
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FAQs About MOT Failure Rates Are Rising
Q1: How long is an MOT valid?
An MOT certificate is valid for 12 months from the date of issue.
Q2: Can I drive with a failed MOT?
Only if you’re driving to a pre-booked MOT or repair appointment. Otherwise, you risk fines and points.
Q3: How much does an MOT cost?
The maximum fee for a car MOT is £54.85 (govt-capped). But many garages offer discounts.
Q4: What if I disagree with the MOT result?
You can appeal using Form VT17 through the DVSA. But it must be within 14 days.
Q5: Is there a grace period after the MOT expires?
No. The moment your MOT expires, your insurance becomes invalid, and you can’t legally drive.
Q6: Can I book my MOT early?
Yes. You can book it up to one month (minus a day) before your current MOT expires, and still keep the same renewal date.
