<p>An MOT is a roadworthiness check, not a service. The tester is answering one question: is this vehicle safe and legal to use on the road today? Nothing is taken apart, and no faults are repaired during the test itself.</p>
<h2>What the tester checks</h2>
<ul>
<li><strong>Brakes.</strong> Pads, discs, pipes, handbrake and the actual braking performance on a rolling road.</li>
<li><strong>Tyres and wheels.</strong> Tread depth of at least 1.6mm across the central three quarters, condition, correct fitment and secure wheels.</li>
<li><strong>Lights.</strong> Every bulb, plus headlamp aim, which is one of the most common quiet failures.</li>
<li><strong>Steering and suspension.</strong> Play, worn bushes, leaking shock absorbers and damaged springs.</li>
<li><strong>Bodywork and structure.</strong> Corrosion in prescribed areas, sharp edges and insecure panels. This is where accident damage that was never repaired properly shows up.</li>
<li><strong>Visibility.</strong> Wipers, washers, mirrors and chips or cracks in the driver s line of sight.</li>
<li><strong>Exhaust and emissions.</strong> Noise, leaks and the gas reading for your engine type.</li>
<li><strong>Seatbelts, horn, registration plates and the driver s seat.</strong></li>
</ul>
<h2>Pass, fail or advisory</h2>
<p>Defects are graded. A <strong>dangerous</strong> or <strong>major</strong> defect fails the test. A <strong>minor</strong> defect passes but is recorded. An <strong>advisory</strong> is a warning that something will need attention before long.</p>
<h2>Why good cars fail</h2>
<p>Roughly a third of failures come down to lighting, tyres and worn wiper blades, all of which cost very little to sort beforehand. A ten minute check of bulbs, tread, screenwash and wipers the weekend before your test is the cheapest MOT insurance there is.</p>
<h2>Damage and the MOT</h2>
<p>Poorly repaired accident damage causes real failures: misaligned headlamps after a front end knock, corrosion around a badly filled panel, or a boot lid that no longer closes squarely. If your car has been in a collision, have the repair checked by a bodyshop that works to <a href="/find-repairer">recognised repair standards</a> rather than waiting for the MOT to find it.</p>
<p><a href="/find-repairer">Find your nearest approved repair centre</a> or <a href="/getaquote">request a free estimate</a> if something needs putting right.</p>