23/10/2007
When it comes to vehicle maintenance, the idea of replacing brake pads can often seem daunting, leading many to automatically book a garage appointment. However, for many Honda owners in the UK, particularly those with a keen interest in DIY, you’ll be pleased to hear that changing your brake pads, especially the front ones, is considered remarkably straightforward. This guide aims to demystify the process, highlight key considerations, and empower you to tackle this essential maintenance task with confidence, potentially saving you a significant amount on labour costs.
Brakes are, without doubt, one of the most critical safety components of your vehicle. They are subjected to immense stress and heat every time you slow down or stop, and their effectiveness directly impacts your ability to control the car and prevent accidents. Therefore, while the task might be easy, the importance of doing it correctly cannot be overstated. We'll delve into why quality matters, what to look for in replacement parts, and how to ensure a professional finish, even if you’re doing it yourself in your driveway.
Why Your Brake Pads Need Attention
Brake pads are designed to wear down over time. They are the sacrificial component in your braking system, converting the kinetic energy of your moving vehicle into thermal energy through friction, which then dissipates into the air. This constant friction causes the pad material to gradually erode. Ignoring worn brake pads can lead to:
- Reduced stopping power, making your car unsafe.
- Increased stopping distances, especially in emergencies.
- Damage to other, more expensive brake components like rotors (discs).
- Unpleasant noises, such as squealing or grinding, which can be irritating and indicate severe wear.
- A spongy or pulsating brake pedal feel.
The information provided suggests that 30,000 miles on a set of pads is quite low, even for city driving. This indicates that if your pads are wearing out quickly, there might be underlying issues, or perhaps the quality of the pads you're using isn't up to scratch. Expecting more mileage from your pads is reasonable, and exploring different brands could be a wise move if you're experiencing premature wear.
Choosing the Right Brake Pads: Quality Over Cost
When it comes to brake pads, you genuinely get what you pay for. The advice to avoid anything 'lower' than 'gold' pads, and the warning about store-brand rotors warping easily, are crucial. Cheaper brake pads often overheat extremely quickly, even with moderate braking, leading to reduced effectiveness and accelerated wear, not to mention the potential for dangerous brake fade. Investing in quality pads is an investment in your safety and the longevity of your entire braking system.
There are at least five top-brand manufacturers to choose from in the UK market. While specific recommendations might vary based on vehicle and driving style, some universally respected brands known for their quality and performance include Brembo, EBC Brakes, Ferodo, Bosch, and ATE. The mention of Raybestos EHT pads as a favourite, even without affiliation, speaks volumes about their performance and reliability. These types of pads are often engineered for better heat dissipation and durability, offering a superior braking experience.
Understanding Different Brake Pad Materials
Brake pads are typically made from one of three primary materials, each with its own characteristics:
- Organic (Non-Asbestos Organic - NAO): These are the quietest and generally produce less dust. They provide a good initial bite but tend to wear faster and may fade under high-heat conditions. They are often found as standard equipment on many vehicles.
- Semi-Metallic: Comprising 30-65% metals like copper, iron, steel, and graphite, these pads offer excellent stopping power and are very durable. However, they can be noisier, produce more dust, and may be harder on rotors. They are a popular choice for their balance of performance and cost.
- Ceramic: Made from a dense ceramic material and copper fibres, ceramic pads are known for being very quiet and producing minimal dust. They offer consistent performance across a wide temperature range and are generally gentle on rotors. While they tend to be more expensive, their longevity and clean operation often justify the cost. Many 'gold' or 'premium' pads fall into this category due to their superior performance and comfort characteristics.
For performance models like the Honda Civic Type R or Si (though less common in the UK, the principle applies to any high-performance Honda variant), opting for OEM (Original Equipment Manufacturer) pads is highly recommended. These pads are specifically designed and tested by Honda to meet the exact specifications and performance demands of your vehicle, ensuring optimal braking feel and safety. Even for standard models, OEM pads are a solid, reliable choice.
Rotor Considerations: Don't Skimp Here
While the focus is on pads, the rotors (brake discs) are equally important. As mentioned, cheap store-brand rotors can warp easily under high use. Warped rotors lead to a pulsating brake pedal, vibrations through the steering wheel, and uneven pad wear. Always inspect your rotors when changing pads. If they show signs of deep scoring, excessive rust, or are below the manufacturer's minimum thickness specification (often stamped on the rotor edge), they should be replaced. In many cases, it's good practice to replace rotors whenever you replace pads, especially if you're upgrading to a higher-performance pad type, to ensure optimal braking performance and longevity of both components.
DIY Brake Pad Replacement: A Step-by-Step Overview
While this isn't an exhaustive workshop manual, understanding the general steps involved can help you prepare. Remember, proper tools and safety precautions are paramount.
Tools You'll Likely Need:
- Hydraulic jack and jack stands (never rely solely on a jack!)
- Lug wrench (or impact gun)
- Socket set (for caliper bolts)
- Caliper piston compressor or large C-clamp
- Wire brush and brake cleaner
- Torque wrench
- Gloves and safety glasses
- Brake lubricant (for caliper pins and pad backing plates)
The Process (General Guide):
- Preparation and Safety: Park your car on a flat, level surface. Engage the parking brake. Loosen the lug nuts on the wheel you're working on slightly before lifting the car.
- Lift and Secure: Use the hydraulic jack to lift the vehicle, then place jack stands securely under the designated jacking points. Remove the wheel.
- Access the Caliper: Locate the brake caliper. You'll usually find two bolts holding it to the caliper bracket. These are often 12mm or 14mm.
- Remove Caliper: Loosen and remove the two caliper bolts. Carefully slide the caliper off the rotor. Do NOT let it hang by the brake hose; support it with a wire or bungee cord to prevent damage to the hose.
- Remove Old Pads: The old pads will either slide out of the caliper bracket or be held in place by retaining clips. Note their orientation.
- Clean and Inspect: Use a wire brush and brake cleaner to clean the caliper bracket, especially where the pads sit. Inspect the caliper pins; they should slide freely. Lubricate them lightly with high-temperature brake grease if needed.
- Compress the Piston: This is crucial. Use a caliper piston compressor or a large C-clamp to slowly push the caliper piston back into its bore. This creates space for the thicker new pads. Keep an eye on your brake fluid reservoir; it might rise.
- Install New Pads: Apply a thin layer of brake lubricant to the metal backing plates of the new pads where they contact the caliper and bracket. Insert the new pads, ensuring they are correctly seated and oriented.
- Reassemble: Carefully slide the caliper back over the new pads and rotor. Reinstall and tighten the caliper bolts.
- Torque Down: Use a torque wrench to tighten the caliper bolts and then the lug nuts to your Honda's manufacturer-specified torque settings. This is critical for safety.
- Bedding In: Once all wheels are back on and the car is lowered, pump the brake pedal several times until it feels firm. Do not skip this step. Then, perform the bedding in procedure.
Bedding In New Brake Pads
This is a vital step that many DIYers overlook. Bedding in, or 'burnishing,' ensures that a thin, even layer of friction material from the new pads is transferred to the rotors, optimising braking performance and preventing noise. The exact procedure can vary by pad manufacturer, but a common method involves:
- Several moderate stops (e.g., from 60 mph to 10 mph) without coming to a complete stop, allowing the brakes to cool slightly between stops.
- Avoiding heavy braking or prolonged stops (like sitting with your foot on the brake at a red light) immediately after.
- Driving normally for the first 200-300 miles, gradually increasing brake pressure.
Failing to bed in pads properly can lead to noise, reduced braking performance, and uneven wear.
Comparative Table: Brake Pad Types
| Pad Type | Pros | Cons | Typical Use |
|---|---|---|---|
| Organic (NAO) | Quiet, low dust, good initial bite | Wears faster, prone to fade under heat | Daily commuting, standard vehicles |
| Semi-Metallic | Excellent stopping power, durable, good for heavy vehicles | Can be noisy, more dust, harder on rotors | General driving, light trucks, SUVs |
| Ceramic | Very quiet, low dust, consistent performance, gentle on rotors | More expensive, may require higher operating temperatures | Premium vehicles, performance applications, daily drivers wanting comfort |
Frequently Asked Questions (FAQs)
How often should I change my Honda's brake pads?
There's no fixed interval, as it depends heavily on driving style, vehicle type, and pad material. However, most pads last between 30,000 to 70,000 miles. Regular inspection (at least every 10,000-15,000 miles or during tyre rotations) is the best way to determine when they need replacing. Listen for warning sounds and check your owner's manual for minimum pad thickness.
What are the signs of worn brake pads?
Common signs include a squealing or grinding noise when braking (often from wear indicators), a pulsating or vibrating brake pedal, a spongy brake pedal that goes closer to the floor, or increased stopping distances. Some cars also have dashboard warning lights for brake pad wear.
Can I change just the front or rear brake pads?
Yes, it's common to change only the front or rear pads, as they wear at different rates. Front pads typically wear out faster due to bearing the brunt of the braking force. However, always change pads in sets (both front or both rear) to ensure even braking performance across the axle.
Why are my new brakes noisy?
New brakes can be noisy for a few reasons. It could be normal during the bedding-in process, as the pads and rotors are seating. If the noise persists, it might be due to improper installation (e.g., lack of lubrication on contact points), incorrect pad selection, or a component issue (e.g., warped rotor, sticky caliper pin). Ensure you've completed the bedding-in procedure correctly.
Do I need to replace rotors every time I change brake pads?
Not necessarily, but it's often recommended. Rotors should be replaced if they are below the manufacturer's minimum thickness, heavily scored, or warped. For optimal performance and to prevent premature wear of new pads, many mechanics advise replacing rotors with pads, especially if the old rotors are significantly worn. At the very least, rotors should be inspected and, if within spec, cleaned and potentially resurfaced to provide a fresh, flat surface for the new pads.
Conclusion
Changing your Honda's brake pads can indeed be a manageable DIY project for the average home mechanic, particularly the front pads. By understanding the process, investing in quality parts, and adhering to strict safety protocols, you can confidently perform this essential maintenance task. Remember, the goal isn't just to save money, but to ensure your vehicle remains safe and reliable on the road. If at any point you feel unsure or encounter unexpected difficulties, do not hesitate to consult a professional mechanic. Your safety and the safety of others depend on properly functioning brakes.
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