13/12/2008
The wing mirror, also known as a side-view mirror, is a crucial component of any vehicle. It provides essential visibility of the areas surrounding your car, particularly to the rear and sides, which are not directly visible to the driver. These mirrors are indispensable for safe driving, enabling you to check for approaching traffic, change lanes confidently, and manoeuvre safely. Therefore, when a wing mirror becomes cracked, it's not just an aesthetic issue; it can have significant implications for your safety and adherence to road regulations.
Why Do Wing Mirrors Crack?
Wing mirrors can succumb to damage for a variety of reasons, each with its own set of circumstances. Understanding these causes can help in taking preventative measures and appreciating the fragility of these components.
Impact Damage
The most common culprit behind a cracked wing mirror is physical impact. This can occur in several ways:
- Minor Collisions: Even low-speed bumps in car parks or during tight manoeuvres can cause the mirror housing or the glass itself to crack.
- Vandalism: Unfortunately, deliberate damage to wing mirrors, such as kicking or hitting them, is also a frequent cause of cracks.
- Debris: While less common, debris kicked up from the road by other vehicles, such as stones or gravel, can sometimes strike and damage the mirror.
- Hail Damage: In areas prone to severe weather, large hailstones can also inflict damage on wing mirrors.
Temperature Fluctuations
Extreme and rapid changes in temperature can also play a role, though this is less common for the glass itself and more likely to affect the housing or the adhesive holding the mirror in place. However, significant thermal expansion and contraction over time can theoretically stress the glass, leading to micro-fractures that can develop into larger cracks.
Manufacturing Defects
In rare instances, a manufacturing defect in the glass or its mounting can lead to premature cracking. This is typically covered under warranty if the vehicle is new.
What Happens If Your Wing Mirror Is Cracked? The Consequences
A cracked wing mirror isn't something to be ignored. The consequences can range from minor inconveniences to serious legal and safety issues. It's vital to understand these potential ramifications to appreciate the importance of addressing the damage promptly.
Compromised Visibility
The primary function of a wing mirror is to provide clear and unobstructed visibility. A crack, especially a significant one, can distort the reflection, creating blind spots or making it difficult to accurately judge distances and the speed of other vehicles. This directly impacts your ability to drive safely, particularly when:
- Changing Lanes: You need a clear view of the adjacent lane to ensure it's safe to move. A cracked mirror can obscure approaching cars.
- Reversing: Wing mirrors are essential for judging your proximity to obstacles when reversing. Distortion can lead to miscalculations.
- Parking: Precise positioning is key for parking, and a damaged mirror hinders this.
- Blind Spots: A crack can exacerbate existing blind spots, making you less aware of your surroundings.
Legal Implications
In most countries, including the UK, driving with a damaged or missing wing mirror is illegal. The specific regulations can vary, but generally, all mirrors required for safe driving must be present and in good condition. In the UK, the Road Vehicles (Construction and Use) Regulations 1986 mandate that vehicles must be fitted with mirrors that provide adequate visibility. A cracked wing mirror that impairs this visibility can lead to:
- MOT Failure: Your vehicle's annual Ministry of Transport (MOT) test will likely fail if a wing mirror is cracked and obstructs your view.
- On-the-Spot Fines: Police officers can issue fines if they deem your vehicle to be in a dangerous condition due to the cracked mirror.
- Penalty Points: Depending on the severity and the officer's discretion, you could receive penalty points on your driving licence.
- Insurance Issues: In the event of an accident, if it's found that a cracked wing mirror contributed to the incident due to reduced visibility, your insurance claim could be affected.
Increased Risk of Further Damage
A small crack can, over time, spread and worsen, especially with vibrations from driving or exposure to the elements. Furthermore, the structural integrity of the mirror assembly might be compromised, making it more susceptible to falling off completely.
What Should You Do If Your Wing Mirror Is Cracked?
Addressing a cracked wing mirror promptly is essential. Here's a step-by-step guide:
1. Assess the Damage
First, take a close look at the mirror. How severe is the crack? Does it significantly distort your view? Is the mirror still securely attached to the housing?
2. Check the Legal Requirements
Familiarise yourself with the specific regulations in your area. In the UK, the Department for Transport states that all mirrors must be securely fitted and free from significant damage that impairs vision. If the crack is minor and doesn't affect your view, you might be able to drive for a short period, but it's highly advisable to get it fixed.
3. Consider Temporary Solutions (Use with Caution)
For very minor cracks and only as a very temporary measure until a proper repair can be made, some people might consider using clear packing tape to hold the glass together and prevent further spreading. However, this is generally not recommended as it can still distort vision and may not be legal. It's far better to seek a professional repair.
4. Repair or Replace?
The decision to repair or replace depends on the extent of the damage and the type of mirror:
Mirror Glass Replacement
If only the mirror glass is cracked, it's often possible to replace just the glass itself. This is usually the most cost-effective solution. You can purchase replacement mirror glass specifically designed for your car's make and model. These are typically available from:
- Car accessory shops
- Online automotive parts retailers
- Dealerships
The replacement process usually involves carefully removing the old glass (sometimes with the help of a heat gun to loosen adhesive) and then sticking the new glass in place. Many are self-adhesive.
Mirror Unit Replacement
If the housing of the wing mirror is also damaged, or if the internal mechanisms (like heating elements or electric motors for adjustment) are affected, you'll likely need to replace the entire wing mirror unit. This is a more involved process and can be more expensive. Replacement units can be sourced from the same places as mirror glass.
5. Professional Repair
If you're not comfortable performing the repair yourself, or if the damage is extensive, it's best to take your car to a:
- Mechanic: Most garages can replace wing mirrors.
- Auto-glazing specialist: Companies that specialise in car windows can also handle mirror replacements.
- Dealership: For original parts and guaranteed fitting, though often the most expensive option.
DIY vs. Professional Replacement: A Comparison
Here's a look at the pros and cons of tackling this repair yourself versus hiring a professional:
| Aspect | DIY Replacement | Professional Replacement |
|---|---|---|
| Cost | Lower (cost of parts only) | Higher (cost of parts + labour) |
| Time Commitment | Variable (depends on skill and complexity) | Usually quick (often within an hour) |
| Skill Required | Basic mechanical aptitude, patience | None required from the owner |
| Risk of Further Damage | Higher if inexperienced | Lower, professionals have the right tools and expertise |
| Warranty | Usually no warranty on labour | Often includes a warranty on parts and labour |
Frequently Asked Questions (FAQs)
Q1: Can I drive with a cracked wing mirror?
It depends on the severity of the crack and local laws. If the crack significantly impairs your visibility, it is illegal and unsafe to drive. It could also lead to an MOT failure or a fine.
Q2: How much does it cost to replace a wing mirror?
The cost varies significantly. Replacing just the mirror glass can range from £15 to £50 for the part, plus fitting if you don't do it yourself. Replacing the entire mirror unit can cost anywhere from £50 to £300 or more, depending on the car model and whether it has electronic features.
Q3: Is it easy to replace wing mirror glass myself?
For many cars, replacing just the glass is a relatively straightforward DIY task, often involving carefully prying off the old glass and sticking on the new one. However, it requires care to avoid damaging the mirror housing or the mirror's electrical components (if applicable).
Q4: What if my car has heated wing mirrors and the glass cracks?
If your mirrors are heated, you need to ensure that the replacement glass is also heated and that the electrical connection is correctly re-established. This adds a layer of complexity to a DIY replacement.
Q5: Can I use superglue to fix a cracked wing mirror?
While superglue might hold a very small crack together temporarily, it's not a recommended or permanent solution. It can create a distorted view and is unlikely to withstand the vibrations and environmental conditions your car is exposed to. It's best to replace the glass.
Conclusion
A cracked wing mirror is more than just a cosmetic flaw; it's a safety hazard and a potential legal infringement. The distorted vision and potential for the mirror to detach entirely pose significant risks to you and other road users. Prioritising the prompt replacement of damaged wing mirror glass or the entire unit is a small but vital step in maintaining your vehicle's roadworthiness and ensuring your safety on the road. Don't delay in addressing this issue; a clear view is paramount for a secure journey.
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