Are you allowed to drive with a cracked windscreen?

As a general rule, if you have any cracks – or even chips – in your windscreen that are bigger than 10mm and are in the A-Zone (which is a 290mm area directly in front of the driver), your car will fail its MOT. A crack or chip bigger than 40mm anywhere else on your windscreen will also result in a fail.
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What do I do if my windscreen cracks?Best practice is to repair the chip or crack as swiftly as possible. Even if the damage is not in your line of vision, don't put off the repairs – a crack left unattended can quickly spread across the windscreen. A chip could be repaired by injecting an epoxy or acrylic adhesive into it.

Can you drive around with a cracked windshield?

It's generally not dangerous to drive with a small crack in the windshield, but damaged glass should be repaired or replaced as soon as possible for two important reasons: Windshields weakened by damage provide less protection. Cracked windshields decrease visibility.

Can a cracked windshield break while driving?

Unfortunately, since there is a growing crack, your windshield could break while driving. The crack can continue to spread due to moisture, temperature fluctuations, and further impact. The good news is that windshields are laminated on both sides so yours won't shatter into the car.

Is it illegal to drive with a crack in your windscreen?

Is it illegal to have a cracked windscreen? Driving with a cracked windscreen can be considered a motoring offence. It could constitute use of a motor vehicle in a dangerous condition. The Highway Code states that drivers should have a full view of the road ahead and glass should be maintained in a good condition.

Related Questions

Is it OK to drive with a cracked windscreen?

You should avoid driving your vehicle if it has a cracked windscreen, as it could increase the chances of a car accident.

Can cracks in windscreens be repaired?

Yes – most chipped windscreens can be repaired. However, this does depend on the size, depth and location of the chip and whether there is any further damage to the car's frame.

How long can a cracked windshield last?

There is no set amount of time to safely drive with a cracked windshield. In some cases, the crack is diminutive and unlikely to spread, making it possible to drive days, weeks or even months without additional damage. However, even slight cracking makes windshields brittle.

Will a cracked windshield eventually shatter?

While a windshield usually won't fall in on itself or burst like a side window from actors like temperature or pressure, a crack can expand, splinter out, and shatter (typically) the outer layer of glass.

What happens if you dont fix a cracked windshield?

Damaged Windshields are Not Safe
If the glass has cracks, chips, or missing pieces, then the odds are against you that the entire windshield will stay intact in a collision. Your best bet is to fix the windshield imperfections as they happen, and restore windshield's stability.

How long does it take for a crack in a windshield to spread?

Changes in Temperature
When this happens, your windshield's structure tends to shift, thus weakening the corner of each crack or chip. In one day, these cracks will start spreading on a microscopic level. Within a few days, you will see marked differences in the crack with the naked eye.

What size crack in windscreen is illegal?

As a general rule, if you have any cracks – or even chips – in your windscreen that are bigger than 10mm and are in the A-Zone (which is a 290mm area directly in front of the driver), your car will fail its MOT. A crack or chip bigger than 40mm anywhere else on your windscreen will also result in a fail.

Will a crack in windscreen fail MOT?

If there is damage of 40mm in size, anywhere on the windscreen, your vehicle will fail its MOT. The crack will need to be fixed before being re-tested. However, even a 10mm-sized damage on a cracked windscreen results in MOT failure if it falls within what is known as windscreen Zone A.

Is it illegal to drive with a cracked windscreen in the UK?

Windscreen Laws in the UK
It can be considered as a motoring offence to drive with a damaged windscreen. If stopped, you could be fined and receive 3 penalty points on your license for driving a car in a dangerous condition.

What size crack can be repaired windscreen?

Windscreen repair can fix a crack of up to 25mm in zone C and up to 40mm in zone D, since these are both out of your direct vision of sight while driving.

How long can a windshield crack be?

Cracks between 6 inches and a foot in length have the potential to be repaired. Cracks longer than a foot necessitate a full replacement. How Long is Too Long to Drive with a Cracked Windshield? There is no set amount of time to safely drive with a cracked windshield.

Can you stop a crack in your windshield from spreading?

Spread Nail Polish on the Crack
Like superglue, clear nail polish can serve as a temporary fix to stop a windshield crack from spreading while you're on the go. And, like superglue, nail polish can be highly difficult to remove once it's been applied.

How long will a cracked windshield last?

Another important factor is the location of the crack. If the crack hinders the view as you drive the car, you should have it repaired right away. However, if the crack is small and on the passenger side, you could possibly drive for hundreds of miles without any issue.

Is a crack in a windscreen an MOT failure?

Windscreens and the MOT test
Your car may fail its MOT if: The windscreen is chipped or cracked. The maximum damage size is 10mm in the drivers' line of vision (a vertical strip 290mm wide centred on the steering wheel), 40mm elsewhere in the rest of the area swept by the wiper blades.

Will tape stop a windshield crack from spreading?

Covering the crack as such with the help of tape can add a protective barrier and ensure that moisture or dirt does not cause the crack to spread further. It's recommended that you use a clear tape for the application. You can also use a duct tape if the location of crack does not impede with your visibility on road.

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