For many UK motorists, changing a car bulb or adding a cosmetic headlight cover seems like harmless DIY. But experts warn that one simple mistake could see drivers slapped with fines of up to £1,000—and even risk an MOT failure.

The issue? Incorrectly fitted bulbs or tinted headlight covers, both of which breach DVSA (Driver and Vehicle Standards Agency) regulations and put road safety at risk.

According to experts at Plates Express , many drivers don’t realise the rules are so strict. “Your headlights aren’t just about seeing the road — they’re also about being seen by others. If you fit the wrong bulbs, or cover them in a way that reduces visibility, you’re breaking the law and could face heavy penalties.”

Why headlight rules matter

Headlights are classed as essential safety equipm

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