16/08/2020
It's a common question that pops into the minds of many car owners: "Do I need a wheel alignment?" While it might not be as talked about as an oil change or a tyre rotation, a proper wheel alignment is crucial for the longevity of your tyres, the efficiency of your vehicle, and even your safety on the road. Ignoring the need for an alignment can lead to a host of problems, from premature tyre wear to compromised handling. This article will delve into the signs that suggest your vehicle needs attention, explain what a wheel alignment actually is, and highlight the benefits of keeping your wheels pointing in the right direction.
What Exactly Is Wheel Alignment?
Wheel alignment, often referred to as tracking, is the process of adjusting the angles of your wheels so they are set parallel to each other and perpendicular to the ground. There are several key angles involved in a wheel alignment:
- Camber: This is the inward or outward tilt of the top of the tyre when viewed from the front of the vehicle. If the top of the tyre tilts inwards, it's negative camber; if it tilts outwards, it's positive camber.
- Caster: Caster refers to the angle of the steering axis when viewed from the side of the vehicle. It affects steering stability and the tendency of the wheels to return to centre after a turn.
- Toe: Toe is the angle of the tyres when viewed from above. If the front of the tyres points inwards, it's toe-in; if it points outwards, it's toe-out.
These angles are precisely set by the manufacturer to ensure optimal tyre wear, steering response, and vehicle stability. When these angles are knocked out of specification, problems can arise.
Signs You Might Need a Wheel Alignment
Your vehicle will often give you clear indications when its alignment is off. Paying attention to these symptoms can save you significant expense and hassle in the long run. Here are the most common signs:
1. Uneven or Rapid Tyre Wear
This is arguably the most significant indicator. If you notice that your tyres are wearing out more quickly than usual, or if the wear is concentrated on one edge (either the inside or outside) of the tyre tread, it's a strong sign that your alignment is off. For example, if the outer edges of your front tyres are wearing down, it could indicate excessive toe-out. Conversely, inner edge wear often points to excessive toe-in. Feathering, where the tread blocks feel rough or spiky when you run your hand across them in one direction, is another classic symptom of misalignment.
2. Vehicle Pulling to One Side
If your car consistently pulls to the left or right when you're driving on a straight, level road, and you're not holding the steering wheel straight, your alignment is likely the culprit. While a flat tyre or a steering issue could cause this, a persistent pull is a classic sign of misaligned wheels. This can be dangerous as it requires constant correction from the driver, leading to fatigue and reduced control.
3. Crooked Steering Wheel
Even if your car drives straight, if you notice that your steering wheel is off-centre when you're going in a straight line, it's a clear indication that your alignment needs adjustment. The steering wheel should be perfectly straight when the wheels are pointing directly forward. If it's tilted to the left or right, the underlying wheel angles are likely not correct.
4. Vibrations or Shuddering
While vibrations can be caused by unbalanced wheels or other issues, a noticeable shuddering, particularly through the steering wheel or the floor of the car, can sometimes be linked to poor wheel alignment. This is often more pronounced at higher speeds.
5. Squealing Tyres
If your tyres suddenly start squealing during turns, even at moderate speeds, it could be a sign that they are scrubbing against the road surface due to incorrect alignment. This is essentially the tyres fighting against each other to turn.
Common Causes of Misalignment
Wheel alignment isn't something that typically changes overnight. It's usually a gradual process resulting from everyday driving conditions or specific incidents:
- Potholes and Kerb Strikes: Hitting a deep pothole or bumping forcefully against a kerb can easily knock your wheels out of alignment. Even seemingly minor impacts can have an effect over time.
- Worn Suspension Components: Over time, components like ball joints, tie rods, and bushings can wear out. This wear can lead to play in the suspension system, allowing the wheels to move out of their intended alignment.
- Accidents or Impacts: Even a minor collision can affect your vehicle's alignment.
- Spring Sagging: If your vehicle's springs sag, it can alter the suspension geometry and affect alignment.
Why is Wheel Alignment Important?
Maintaining proper wheel alignment offers several key benefits:
1. Extended Tyre Life
As mentioned, misaligned wheels cause uneven tyre wear. By ensuring your wheels are correctly aligned, you promote even contact between the tyre and the road, significantly extending the lifespan of your tyres. This translates directly into cost savings, as you'll need to replace tyres less frequently.
2. Improved Fuel Efficiency
When your wheels are misaligned, your tyres are essentially being dragged or scrubbed across the road surface. This increased rolling resistance requires your engine to work harder, consuming more fuel. Correct alignment reduces this resistance, leading to better fuel economy.
3. Enhanced Safety and Handling
Proper alignment ensures your vehicle steers and tracks straight, providing a more stable and predictable driving experience. It improves your car's ability to maintain a straight line, respond accurately to steering inputs, and corner effectively. This is particularly important in adverse weather conditions or during emergency manoeuvres, contributing to overall driver safety.
4. Smoother, More Comfortable Ride
Misalignment can lead to a less comfortable driving experience, with vibrations and the constant need to correct the steering. A correctly aligned vehicle will feel more planted on the road, providing a smoother and more enjoyable journey.
When Should You Get Your Wheel Alignment Checked?
It's a good idea to have your wheel alignment checked:
- If you notice any of the signs mentioned above (uneven tyre wear, pulling, crooked steering wheel).
- After hitting a significant pothole or kerb.
- When replacing tyres or suspension components.
- As part of a regular vehicle service, perhaps annually or every 10,000-15,000 miles, depending on your driving conditions.
Consider a full service or even a service + MOT package if your vehicle is due. These packages often include checks of essential components that can affect alignment.
What to Expect During a Wheel Alignment
A professional wheel alignment involves a technician using specialised equipment to measure and adjust the angles of your wheels. The process typically includes:
- Inspection: The technician will first inspect your tyres for wear patterns and check your suspension and steering components for damage or wear.
- Measurement: Using laser or camera-based equipment, the technician will measure the current angles of your wheels (camber, caster, and toe).
- Adjustment: Based on the manufacturer's specifications, the technician will make the necessary adjustments to bring the angles back into the correct range. This usually involves adjusting specific bolts or components in the suspension system.
- Verification: After the adjustments, the technician will re-measure the angles to ensure they are within the manufacturer's tolerances.
A typical wheel alignment procedure usually takes between 30 minutes to an hour.
Frequently Asked Questions (FAQs)
Q1: How much does a wheel alignment cost?
A1: The cost can vary depending on your location and the specific garage, but generally, a standard four-wheel alignment can range from £50 to £100. It's always worth checking for local offers or package deals, especially when combined with other services like tyre replacement or a service.
Q2: Will a wheel alignment fix my steering wheel being off-centre?
A2: Yes, a primary goal of wheel alignment is to ensure your steering wheel is centred when the vehicle is travelling straight.
Q3: Can I do a wheel alignment myself?
A3: While there are DIY string alignment methods for a rough check, achieving precise manufacturer specifications requires specialised equipment and expertise. It's best left to qualified professionals.
Q4: If I only have one tyre worn out, do I need an alignment?
A4: If you have one tyre showing significantly more wear than the others, it's a strong indicator that your alignment needs checking. Even if only one tyre is affected, the underlying issue could be impacting other wheels too.
Q5: Does replacing suspension parts require a wheel alignment?
A5: Absolutely. Whenever any suspension or steering components are replaced, it's essential to perform a wheel alignment to ensure everything is correctly set up.
Conclusion
Ignoring the signs of poor wheel alignment can lead to premature tyre wear, increased fuel consumption, and compromised handling, all of which can impact your safety and your wallet. By being aware of the symptoms and understanding the importance of this often-overlooked maintenance task, you can ensure your vehicle runs smoothly, safely, and efficiently for longer. If you suspect your car needs an alignment, don't delay – book a check with a reputable garage today. You might be surprised at the difference it makes to your driving experience and the lifespan of your tyres.
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