Subaru Outback Alignment & Wheel Bearing Guide

Maintaining your Subaru Outback, especially a capable model like the 2020 Touring XT, involves ensuring all its components are in optimal working order. Two critical aspects that significantly impact your driving experience, safety, and the longevity of your vehicle are wheel alignment and wheel bearings. While the Outback is renowned for its robust build and all-wheel-drive capabilities, neglecting these fundamental areas can lead to premature tyre wear, compromised handling, and potentially costly repairs. This guide delves into why your Subaru Outback might need an alignment, the tell-tale signs to look out for, and provides essential information on wheel bearing maintenance.

Understanding Wheel Alignment

A wheel alignment, often referred to as a 'tracking' adjustment, is the process of ensuring your vehicle's wheels are set to their optimal angles. These angles are precisely calibrated to match the manufacturer's specifications, typically dictated by the suspension geometry. The primary angles adjusted during an alignment are:

• Camber: This is the inward or outward tilt of the tyre when viewed from the front of the vehicle. Too much positive camber (top of the tyre tilting outwards) or negative camber (top of the tyre tilting inwards) can cause uneven tyre wear.
• Caster: This is the angle of the steering axis when viewed from the side of the vehicle. It influences steering stability and the steering wheel's tendency to return to centre after a turn.
• Toe: This refers to the angle of the tyres when viewed from above. If the front of the tyres are pointing slightly inwards, it's 'toe-in'; if they're pointing slightly outwards, it's 'toe-out'. Incorrect toe settings are a common cause of rapid tyre wear.

Does Your 2020 Subaru Outback Touring XT Need an Alignment?

The need for a wheel alignment on your 2020 Subaru Outback Touring XT isn't always dictated by a fixed mileage interval. Instead, it's often influenced by driving conditions and specific events. Here are the key factors to consider:

Common Triggers for Alignment Checks:

• Impacts and Road Hazards: Hitting a deep pothole, mounting a kerb forcefully, or driving over rough roads at speed can easily knock your wheels out of alignment. Even seemingly minor impacts can have cumulative effects over time.
• Tyre Wear Patterns: Uneven or rapid tyre wear is one of the most significant indicators. If you notice feathering, cupping, or a consistent wear pattern on the edges or centre of your tyres, an alignment issue is highly probable. This uneven wear significantly reduces tyre life and affects handling.
• Steering and Handling Changes: Does your steering wheel feel off-centre when driving straight? Does the vehicle pull to one side? These are classic symptoms of misaligned wheels. A loss of steering precision or a feeling of vagueness in the steering can also point to alignment problems.
• Recent Suspension Work: If you've had any work done on your suspension components, such as replacing shocks, struts, or control arms, it's always recommended to have a wheel alignment performed afterwards to ensure everything is set correctly.
• Drifting or Pulling: When you release the steering wheel momentarily on a straight, level road, does the car drift noticeably to the left or right? This 'pulling' is a strong sign that your alignment needs attention.

The Importance of Regular Checks

Even without obvious symptoms, it's prudent to have your wheel alignment checked periodically. Subaru's all-wheel-drive system is sophisticated, and maintaining proper alignment ensures all four wheels are working in harmony, optimising traction and preventing unnecessary drivetrain stress. A proactive approach can save you money on premature tyre replacements and improve your overall driving satisfaction.

Why Should You Get a Subaru Wheel Alignment?

Investing in a Subaru wheel alignment offers several tangible benefits:

• Extended Tyre Life: Correct alignment ensures your tyres wear evenly across their tread surface, maximising their lifespan and saving you money on replacements.
• Improved Fuel Efficiency: Misaligned wheels create more rolling resistance, forcing your engine to work harder and consuming more fuel. An alignment can help optimise your Outback's fuel economy.
• Enhanced Safety and Handling: Proper alignment contributes to stable straight-line driving, predictable cornering, and a more responsive steering feel. This is crucial for maintaining control, especially in adverse weather conditions.
• Reduced Driver Fatigue: When a vehicle pulls to one side, the driver often has to constantly correct the steering, leading to fatigue on longer journeys. A well-aligned vehicle drives straight with minimal effort.

What to Ask For During an Alignment

When you take your Subaru Outback for an alignment, be specific about what you want. Don't just ask for 'an alignment'; ask for the technician to adjust the settings to the centre of specification. This means they should aim for the midpoint of the manufacturer's acceptable range for each alignment angle. Simply adjusting to 'within specification' might still leave you with suboptimal handling or uneven tyre wear, albeit less severe. It's also beneficial to request that the alignment measurements and settings are recorded. This data serves as a valuable baseline for future checks, allowing you to track any changes or potential issues more effectively.

The First Alignment: A Crucial Baseline

For any new vehicle, or after significant suspension work, the first alignment should ideally be a four-wheel alignment. This comprehensive check measures and adjusts all four wheels, providing a complete picture of your vehicle's alignment status. The data obtained from this initial alignment is critical. Keep these records safe, as they form your baseline. This baseline data is invaluable for future diagnostics and ensures that any subsequent adjustments are made with a clear understanding of the vehicle's original settings.

Wheel Bearing Maintenance for Subaru Outback

While the provided information did not detail how to repair wheel bearings, understanding their function and maintenance is vital for your Subaru Outback's smooth operation and safety.

What are Wheel Bearings?

Wheel bearings are essential components that allow your wheels to rotate freely with minimal friction. They are typically located within the wheel hub assembly. A healthy wheel bearing ensures smooth rotation, while a worn or damaged one can lead to a range of problems.

Signs of Worn Wheel Bearings:

• Humming or Grinding Noise: This is the most common symptom. The noise often gets louder with speed and may change pitch when turning (getting louder when turning towards the side with the bad bearing, and quieter when turning away).
• Loose Wheel: If you can wiggle the wheel when the vehicle is jacked up, the wheel bearing is likely loose and needs immediate attention.
• Vibrations: You might feel vibrations through the steering wheel or the chassis, especially at higher speeds.
• ABS or Traction Control Warning Lights: In modern vehicles like your Outback, the wheel speed sensor often integrates with the wheel bearing assembly. A faulty bearing can disrupt the sensor's signal, triggering warning lights.

Wheel Bearing Maintenance:

Most modern Subaru Outback wheel bearings are sealed and lubricated for life, meaning they don't require regular greasing like older vehicles. However, they are still subject to wear and tear. The best approach to wheel bearing maintenance is:

1. Listen for Warning Signs: Pay attention to any unusual noises or vibrations coming from your wheels.
2. Regular Inspections: During routine maintenance, ask your mechanic to check for any play or roughness in the wheel bearings.
3. Address Issues Promptly: If you suspect a wheel bearing issue, have it inspected and repaired immediately. A failing wheel bearing can lead to the wheel locking up or separating from the vehicle, which is extremely dangerous.

Wheel Bearing Replacement:

Replacing a wheel bearing on a Subaru Outback typically involves removing the wheel, brake caliper, rotor, and then pressing out the old bearing and pressing in a new one. This can be a complex job requiring specialised tools and knowledge, often involving a hydraulic press. Due to the precision required and the safety implications, it's generally recommended to have this work carried out by a qualified mechanic.

Frequently Asked Questions

Q1: How often should I get my Subaru Outback aligned?
There's no strict mileage interval. Check alignment if you notice pulling, uneven tyre wear, or after hitting a pothole. Consider a check every 1-2 years as preventative maintenance.

Q2: Can I align my Subaru Outback myself?
While minor adjustments might be possible with basic tools, a proper wheel alignment requires specialised equipment and expertise to ensure all angles are set accurately according to manufacturer specifications. It's best left to professionals.

Q3: What's the difference between a 2-wheel and 4-wheel alignment?
A 2-wheel alignment adjusts only the front wheels, while a 4-wheel alignment adjusts both front and rear wheels. For vehicles with adjustable rear suspension or where rear wheel issues can affect front-wheel tracking (like many AWD vehicles), a 4-wheel alignment is more comprehensive and recommended.

Q4: How long does a wheel alignment take?
A standard wheel alignment typically takes between 45 minutes to 1.5 hours, depending on the vehicle and the technician's efficiency.

Q5: Is a wheel alignment covered under warranty?
Generally, wheel alignments are considered maintenance items and are not covered under the standard vehicle warranty unless the misalignment is caused by a manufacturing defect or faulty part that is covered under warranty.

Conclusion

Ensuring your 2020 Subaru Outback Touring XT has a proper wheel alignment and healthy wheel bearings is paramount for a safe, efficient, and enjoyable driving experience. By understanding the signs of misalignment, being proactive with checks, and addressing any potential wheel bearing issues promptly, you can protect your investment and keep your Outback performing at its best. Remember to always seek professional advice for complex tasks like wheel bearing replacement and to specify 'centre of specification' when requesting alignment services.