Is It Illegal To Drive With A [best] Cracked Windscreen Uk Jun 2026

If a driver is found to be driving with a cracked windscreen that is deemed to be a major defect, they can be issued with a penalty notice and a fine of up to £100, as well as three penalty points on their license. In more severe cases, the vehicle may be deemed unroadworthy and the driver may be required to have the windscreen repaired or replaced before being allowed to drive again.

Fix the chip the day it happens. It costs the same as a tank of petrol. A fine, three points, and a potential insurance void costs a year of your life.

A 290mm wide section centered on the steering wheel (the driver's line of vision). (roughly the size of a cigarette filter). Rest of Screen The remaining area swept by the windscreen wipers. 40mm .

Under the , drivers are responsible for ensuring their vehicle is in a safe condition. Specifically: is it illegal to drive with a cracked windscreen uk

Driving with a cracked windscreen can also affect your insurance status.

Your first thought isn’t about aerodynamics or aesthetics. It’s legal: Can I get points for this? Do I need to pull over right now?

| Damage Size | Location | Likely Result | | :--- | :--- | :--- | | | Zone A (Driver's direct view) | Usually legal; passes MOT. | | More than 10mm | Zone A (Driver's direct view) | Illegal. Immediate MOT failure. | | Less than 40mm | Rest of windscreen (swept by wipers) | Usually legal; passes MOT. | | More than 40mm | Rest of windscreen (swept by wipers) | Illegal. MOT failure. | | Any damage | Anywhere on windscreen | Illegal if it affects the structural integrity of the glass or blocks the driver's view of the road. | If a driver is found to be driving

In severe cases or if the fine is contested, a court can impose a fine of up to £2,500 and discretionary disqualification.

If a crack interferes with your ability to see the road clearly, you are technically driving a vehicle in a dangerous condition. This can lead to a (usually a £100 fine and 3 penalty points) or, if the case goes to court, a fine of up to £2,500 and discretionary disqualification.

If a crack is in Zone A but is only 10mm long (the size of a fingernail), it passes. The moment it hits 40mm, it is illegal to drive on a public road. However, if that same 10mm crack is directly in front of your face, causing a prism effect (splitting light into rainbows) that distorts the view of a traffic light? A traffic officer can still fine you under Construction and Use, even if it passes the MOT length test. It costs the same as a tank of petrol

You are driving down the M6. A lorry kicks up a pebble. Crack. A starburst suddenly blooms in your peripheral vision, right in the driver’s line of sight.

In conclusion, while there is no explicit ban on driving with a cracked windscreen in the UK, the regulations and guidelines do require drivers to ensure that their vehicle is roadworthy and free from defects that could compromise safety. If a crack is deemed to be severe enough to affect the driver's view or compromise the structural integrity of the windscreen, then driving with that crack could be considered illegal. Ultimately, it is the responsibility of drivers to ensure that their vehicle is in good condition and that any defects, including cracked windscreens, are addressed promptly to avoid penalties and, more importantly, to ensure road safety.