1. Introduction
This manual provides essential information regarding the BOSCH BP1529 QuietCast Premium Semi-Metallic Disc Brake Pad Set. It covers product features, compatibility, installation considerations, maintenance, and technical specifications. Please read this manual thoroughly before installation or use to ensure proper function and safety.
Image 1.1: The official Bosch logo.
2. Product Overview and Features
The Bosch QuietCast line of brake pads is engineered to deliver original equipment (OE) quality performance, durability, and innovative features. These semi-metallic disc brake pads are designed for robust performance, exceptional stopping power, and quiet operation with low dust.
Image 2.1: Bosch QuietCast Premium Semi-Metallic Disc Brake Pads.
Key Features:
- Molded Shim Technology (MST): Features pre-attached OE style multilayer rubber core shims for a high-quality bond between rubber and steel. This design reduces noise, increases strength, and provides corrosion resistance.
- Semi-Metallic Friction Material: Meticulously engineered for robust performance, exceptional stopping power, and quiet, low-dust operation.
- Powder-Coated Backing Plates: Prevents rust and corrosion, contributing to an increased product life.
- OE Style Slots and Chamfers: Ensures premium quality, fit, and function, matching original equipment specifications.
Image 2.2: Cross-section diagram illustrating the layers of a Bosch brake pad, including coating, steel, rubber, steel, and adhesive.
3. Compatibility
The BOSCH BP1529 QuietCast Premium Semi-Metallic Disc Brake Pad Set is designed for the FRONT axle of select BMW vehicles. Please verify specific vehicle fitment details using a fit checker or by consulting a professional, as vehicle trim level and engine type may affect compatibility.
Compatible Vehicles (Front Axle):
- BMW 760Li: 2010-2015
- Alpina B6 Gran Coupe: 2016
- Alpina B6 xDrive Gran Coupe: 2015-2019
- Alpina B7: 2015
- Alpina B7 xDrive: 2013-2015
- Alpina B7L: 2013-2015
- Alpina B7L xDrive: 2015
4. What's in the Box
Each set includes components for one axle (two wheels).
- Brake Pads (for one axle)
- Hardware Kit (where available)
- Synthetic Lubricant (for reduced resistance on sliding contact points)
5. Installation Guidelines
Installation of brake components requires specialized knowledge and tools. It is highly recommended that installation be performed by a qualified automotive technician to ensure safety and proper function.
General Steps (for professional reference):
- Safely lift and support the vehicle.
- Remove the wheel and caliper assembly.
- Remove old brake pads and hardware.
- Clean and inspect caliper, rotor, and other brake components for wear or damage.
- Apply synthetic lubricant to sliding contact points as specified.
- Install new brake pads and hardware kit.
- Reassemble caliper and wheel.
- Bleed the brake system if necessary and test brake pedal feel.
- Perform a proper brake pad break-in procedure according to manufacturer recommendations.
Warning: Improper installation can lead to brake failure, serious injury, or death. Always consult a professional.
6. Operating Principles
Disc brake pads function by creating friction against the brake rotor when the brake pedal is pressed. This friction converts kinetic energy into thermal energy, slowing and stopping the vehicle. The Bosch QuietCast pads are designed to optimize this process, providing consistent stopping power while minimizing noise and dust output through their advanced semi-metallic friction material and multi-layer shims.
7. Maintenance
Regular inspection and maintenance of your vehicle's braking system are crucial for safety and performance. It is recommended to have your brake pads and rotors inspected at least once a year or every 12,000 miles, whichever comes first.
Maintenance Tips:
- Monitor brake pad wear indicators.
- Check brake fluid level and condition regularly.
- Listen for unusual noises (squealing, grinding) which may indicate worn pads.
- Inspect rotors for excessive wear, scoring, or warping.
- Ensure proper lubrication of caliper pins and contact points during service.
Replace brake pads when they reach their minimum thickness specification or show signs of damage. Bosch QuietCast pads feature powder-coated backing plates for enhanced corrosion resistance, contributing to their longevity.
8. Troubleshooting
If you experience any issues with your braking system, it is important to address them promptly. Consult a qualified technician for diagnosis and repair.
Common Issues and Potential Causes:
- Brake Noise (Squealing/Grinding): Can indicate worn pads, improper installation, lack of lubrication, or contaminated pads/rotors. Grinding often means metal-on-metal contact, requiring immediate attention.
- Reduced Braking Performance: May be due to worn pads, contaminated pads, air in the brake lines, faulty caliper, or master cylinder issues.
- Vibration During Braking: Often caused by warped brake rotors or uneven pad wear.
- Pulling to One Side: Could indicate a sticking caliper, uneven pad wear, or hydraulic issues.
Do not operate a vehicle with compromised braking performance. Seek professional assistance immediately.
9. Specifications
| Specification | Detail |
|---|---|
| Brand | Bosch |
| Model Number | BP1529 |
| Material | Semi-Metallic |
| Auto Part Position | Front |
| Vehicle Service Type | Automotive |
| Specification Met | OEM |
| Item Weight | 6 pounds |
| Product Dimensions | 10.5 x 6 x 3.5 inches |
| UPC | 077212157846 |
10. Safety Information
Automotive brake systems are critical for vehicle safety. Always exercise caution when working on or around these components.
- Wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
- Ensure the vehicle is securely supported on jack stands before beginning any work.
- Follow all vehicle manufacturer's service procedures.
- Keep brake fluid away from painted surfaces, as it can damage paint.
- Dispose of old brake pads and fluids responsibly according to local regulations.
Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
11. Warranty and Support
Bosch products are manufactured to high standards and are typically backed by a manufacturer's warranty. For specific warranty details, claims, or technical support, please refer to the official Bosch website or contact Bosch customer service directly. Keep your purchase receipt as proof of purchase.
For further assistance, visit the official Bosch website or contact their customer support.
