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A cracked rear light on a car, highlighting an MOT advisory concern.
MOT Advisories Explained

Rear Light Cracked MOT Advisory: Will It Fail MOT

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A cracked rear light advisory on your MOT can raise concerns about safety and legality. This guide explains what it means, repair costs, and its impact on your vehicle.

In this guide

Understanding the Rear Light Cracked MOT Advisory

Receiving an MOT advisory for a cracked rear light can be a source of confusion and concern for many vehicle owners. In plain English, this advisory indicates that one or more of your car's rear lights has a crack or damage that could potentially affect its performance. While it may not immediately lead to a failure of the MOT, it does suggest that the light may not be functioning optimally, which could pose safety risks.

The rear lights of a vehicle serve crucial functions, including signalling to other drivers when you are braking, turning, or reversing. A crack can compromise the light’s visibility, making it harder for other road users to see your intentions. This is particularly important in low-light conditions or adverse weather.

In the current market, a cracked rear light is not uncommon, especially in older vehicles. However, it is essential to take this advisory seriously. Ignoring it could lead to more significant issues down the line, including potential fines or penalties if your vehicle is deemed unroadworthy. Furthermore, a crack can worsen over time, leading to complete failure of the light, which is a more severe issue that could result in an MOT failure.

How Serious Is a Cracked Rear Light?

The seriousness of a cracked rear light advisory can vary depending on the extent of the damage. A minor crack that does not affect the light's functionality may be considered a minor annoyance. However, if the crack is substantial enough to impede the light’s brightness or clarity, it could be classified as a safety-critical issue.

If you are weighing up alternatives, our guide to CV Boot Split MOT Advisory covers similar ground from a different angle.

From a legal standpoint, UK law mandates that all vehicles must have fully functioning lights. Therefore, if your rear light is cracked to the point where it does not illuminate properly, you could be at risk of failing your MOT. The Vehicle and Operator Services Agency (VOSA) guidelines suggest that any damage to lights that affects their performance should be addressed promptly.

In practical terms, if you notice that your rear light is cracked, it’s advisable to assess its functionality. Check if the light is still bright enough and whether the crack is affecting its clarity. If you find that the light is dim or the crack is significant, it’s best to address the issue sooner rather than later. Not only does this help ensure your safety, but it also keeps you compliant with road regulations.

Typical Repair Costs for a Cracked Rear Light

The cost of repairing or replacing a cracked rear light can vary significantly based on several factors, including the make and model of your vehicle, the extent of the damage, and whether you choose to do it yourself or hire a professional.

For more on this topic, take a look at our What Does 'Steering Rack Worn' Mean on an MOT? Serious or Not? guide.

On average, you might expect to pay between £50 to £150 for a replacement rear light unit. This price typically includes the cost of the part and labour if you opt for a garage repair. For instance, a common vehicle like a Ford Focus might have replacement lights available for around £60 to £80, while more premium models, such as a BMW or Audi, could see costs rise to £120 or more.

If you are handy with tools, replacing a rear light can be a straightforward DIY task. Many online tutorials can guide you through the process, and you might only need to purchase the replacement part. This could save you a significant amount of money, as you would only be looking at the cost of the part itself, potentially under £50.

However, if the damage is more extensive and involves wiring or other components, repair costs can escalate. In such cases, it’s wise to get a detailed quote from a trusted mechanic. Remember, while it may be tempting to ignore a minor crack, addressing it promptly can prevent more costly repairs in the future.

You might also find our Exhaust Blowing MOT Advisory guide useful alongside this one.

How Urgent Is It to Fix a Cracked Rear Light?

The urgency of fixing a cracked rear light largely depends on the severity of the damage and its impact on the light’s functionality. If the crack is minor and the light is still functioning correctly, you may have some time before needing to address it. However, it is crucial to monitor the situation closely.

If you notice that the light is flickering, dimming, or the crack is spreading, it’s advisable to fix it immediately. Driving with a compromised rear light not only increases the risk of an accident but also puts you at risk of receiving a fine from law enforcement if you are stopped. In the UK, driving a vehicle with defective lights can lead to penalties, including points on your licence and fines of up to £100.

In general, if your MOT advisory indicates a cracked rear light, it’s best to treat it as a priority. Even if it doesn’t lead to an immediate MOT failure, addressing the issue can enhance your vehicle's safety and reliability. Additionally, if you plan to sell your car in the future, having a fully functional lighting system can improve its resale value.

We have covered related ground in our Repeated Brake Disc Worn Advisory guide, which is worth reading if this subject interests you.

What to Watch for If the Advisory Appears Repeatedly

If you find yourself receiving repeated advisories for a cracked rear light, it’s essential to investigate the underlying causes. This could indicate a more significant issue, such as electrical problems or poor-quality replacement parts that are not holding up over time.

Repeated advisories can also affect your vehicle’s value and your negotiation position if you decide to sell. Buyers are often wary of cars with a history of unresolved issues, particularly those related to safety. If a potential buyer sees that your vehicle has consistently had problems with its rear lights, they may question the overall reliability of the car.

Moreover, if the same advisory keeps appearing, it might be worth consulting a professional to diagnose any underlying issues. This could save you money in the long run and ensure that your vehicle remains in good condition. Regular maintenance checks can also help catch problems before they escalate, ensuring your car remains roadworthy.

You can check the exact safety score for any model on the Euro NCAP website.

Impact on Vehicle Value and Negotiation Position

A cracked rear light advisory can have a tangible impact on your vehicle's value. When it comes time to sell, potential buyers will often scrutinise the MOT history of a car. A record of advisories, particularly those related to safety, can lead to lower offers or even deter buyers altogether.

In the current market, buyers are increasingly savvy and will often check a vehicle's full MOT history using resources like the GOV.UK MOT history service. If they see repeated advisories for cracked lights or similar issues, they may perceive the vehicle as a risk. This perception can lead to a negotiation position that favours the buyer, potentially resulting in a lower sale price.

To mitigate this, it’s wise to address any advisories promptly and maintain a comprehensive service history. Keeping records of repairs and maintenance can reassure potential buyers that the vehicle has been well cared for. Furthermore, if you can demonstrate that you have resolved previous advisories, it can strengthen your position during negotiations.

Conclusion

A cracked rear light advisory on your MOT should not be taken lightly. While it may not lead to an immediate failure, it highlights an issue that could compromise your safety and the safety of others on the road. Understanding the seriousness of the advisory, typical repair costs, and the urgency of addressing the issue can empower you as a vehicle owner.

If you find yourself facing this advisory, consider checking your vehicle's full MOT history to understand any patterns or recurring issues. This can provide valuable insights into the overall health of your car. Remember, addressing minor issues like a cracked rear light can prevent them from becoming major problems, ensuring your vehicle remains safe and reliable. For further guidance on other advisories, you might find our articles on repeated suspension arm bush worn advisory and brake disc worn helpful. Stay proactive, and your car will thank you for it.

Frequently Asked Questions

A cracked rear light advisory indicates that one or more of your vehicle's rear lights has damage that could affect its visibility and functionality, though it may not necessarily lead to an MOT failure.
The urgency depends on the severity of the crack. If the light is still functioning properly, you might have some time, but it's best to address it promptly to ensure safety and compliance with road regulations.
Repair costs can range from £50 to £150, depending on the make and model of your vehicle and whether you choose to do it yourself or hire a professional.
A cracked rear light advisory can negatively impact your vehicle's value, as potential buyers may view repeated advisories as a sign of underlying issues, leading to lower offers.
While you may be able to drive with a cracked rear light, it is not advisable as it can compromise safety and lead to legal penalties if the light is not functioning correctly.

People Also Ask

If your rear light is cracked but still functioning adequately, you may receive an advisory rather than a failure. However, if the crack affects visibility, it could lead to an MOT failure.
You can check the functionality of your rear light by turning on your vehicle and having someone stand behind it to see if the light illuminates brightly and clearly without flickering.
Yes, replacing a cracked rear light is worth it as it ensures your safety on the road, maintains compliance with legal requirements, and can improve your vehicle's resale value.
Replacement rear lights can be found at local auto parts stores, online retailers, or through your vehicle's manufacturer. Websites like [AutoTrader](https://www.autotrader.co.uk) can also help you find parts.

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