1. Introduction
This instruction manual provides important information regarding the Wagner ThermoQuiet MX1108 Semi-Metallic Disc Brake Pad Set. These brake pads are engineered for quiet operation and superior braking performance, utilizing advanced friction formulations and Integrally Molded Insulator (IMI™) technology. Please read this manual thoroughly before installation and use to ensure proper function and safety.

Figure 1: Key features of Wagner ThermoQuiet brake pads, highlighting heat dissipation, quiet operation, IMI technology, and premium stainless-steel hardware.
Video 1: An official video from Wagner detailing the engineering and validation process behind their brake pads, emphasizing a 'zero shortcuts' approach to quality and performance.
2. Safety Information
Brake system components are critical for vehicle safety. Improper installation or maintenance can lead to serious injury or death. Always follow vehicle manufacturer's service procedures and safety precautions. If you are not experienced with brake system repair, it is highly recommended to seek professional assistance from a certified mechanic.
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
- Ensure the vehicle is securely supported on jack stands before working underneath.
- Do not use petroleum-based products on rubber components.
- Dispose of old brake components and fluids responsibly according to local regulations.
3. Installation
This section outlines the general steps for installing Wagner ThermoQuiet MX1108 Semi-Metallic Disc Brake Pads. Specific procedures may vary by vehicle make and model. Refer to your vehicle's service manual for detailed instructions.
Required Tools (Typical):
- Jack and jack stands
- Lug wrench
- Socket set and ratchet
- C-clamp or brake caliper piston compression tool
- Brake cleaner
- Wire brush
- Torque wrench
- High-temperature brake lubricant
Installation Steps:
- Prepare the Vehicle: Park the vehicle on a level surface, engage the parking brake, and block the wheels. Loosen the lug nuts on the wheel(s) where pads will be replaced. Raise the vehicle and secure it with jack stands. Remove the wheel(s).
- Remove Old Pads: Locate the brake caliper. Remove the caliper guide pin bolts and carefully slide the caliper off the rotor. Support the caliper to avoid stressing the brake hose. Remove the old brake pads from the caliper bracket.
- Inspect Components: Inspect the brake rotor for excessive wear, scoring, or cracks. Replace if necessary. Clean the caliper bracket and guide pins with a wire brush and brake cleaner. Ensure guide pins move freely.
- Compress Caliper Piston: Use a C-clamp or brake caliper piston compression tool to slowly push the caliper piston(s) back into the caliper bore. This creates space for the new, thicker pads.
- Install New Hardware and Pads: Install the new stainless-steel hardware (clips) provided with your Wagner brake pads onto the caliper bracket. Apply a thin layer of high-temperature brake lubricant to the contact points where the pads slide in the clips and to the back of the brake pads (where they contact the caliper piston and caliper body). Insert the new Wagner ThermoQuiet MX1108 brake pads into the caliper bracket.
- Reassemble Caliper: Carefully slide the caliper back over the new pads and rotor. Reinstall and torque the caliper guide pin bolts to the vehicle manufacturer's specifications.
- Final Steps: Reinstall the wheel(s) and torque the lug nuts to specifications. Lower the vehicle. Before driving, pump the brake pedal several times until a firm pedal feel is achieved. Check the brake fluid level and top off if necessary.

Figure 2: Wagner ThermoQuiet MX1108 brake pads shown with the included premium stainless-steel hardware, ready for installation.
4. Operating
After installing new brake pads, a proper 'bedding-in' procedure is crucial for optimal performance and longevity. This process helps transfer a thin, even layer of friction material to the rotor surface, ensuring maximum stopping power and quiet operation.
Bedding-In Procedure:
- Find a safe, open area where you can accelerate and brake without traffic.
- Accelerate to approximately 35 mph (56 km/h) and apply moderate braking pressure to slow down to about 5 mph (8 km/h). Do not come to a complete stop.
- Repeat this process 4-5 times, allowing a short period between stops for the brakes to cool slightly.
- Next, accelerate to approximately 50 mph (80 km/h) and apply firm braking pressure (but do not engage ABS) to slow down to about 5 mph (8 km/h).
- Repeat this firmer braking process 2-3 times.
- After the bedding-in process, drive normally for at least 100-200 miles (160-320 km) avoiding hard braking if possible, to allow the pads to fully seat.
During the bedding-in process, you may notice some smoke or a slight odor; this is normal. Avoid sudden, hard stops immediately after installation, as this can glaze the pads and reduce effectiveness.

Figure 3: Visual representation of the performance benefits of Wagner ThermoQuiet brake pads, including quieter braking, increased stopping power, and improved fade resistance.
5. Maintenance
Regular inspection of your brake pads and system components is essential for safety and performance.
Inspection Intervals:
- Inspect brake pads and rotors every 10,000-12,000 miles (16,000-19,000 km) or as recommended by your vehicle manufacturer.
- Check brake fluid level and condition during every oil change.
Signs of Wear Requiring Replacement:
- Brake pad friction material thickness is less than 3mm.
- Squealing or grinding noises when braking (may indicate wear indicators or metal-on-metal contact).
- Reduced braking effectiveness or a spongy brake pedal.
- Vibration or pulsation felt through the brake pedal (may indicate warped rotors).
- Uneven pad wear across the rotor or between pads.

Figure 4: A brake pad positioned next to a rotor, illustrating the components involved in the braking system and areas for routine inspection.
6. Troubleshooting
This section addresses common issues that may arise with brake pads and offers potential solutions.
| Symptom | Possible Cause | Solution |
|---|---|---|
| Squealing/Grinding Noise | Worn pads (wear indicator), improper installation, glazed pads/rotors, foreign material. | Inspect pads for wear, re-bed pads, clean/replace rotors, ensure proper lubrication during installation. |
| Reduced Braking Effectiveness | Glazed pads, contaminated pads, air in brake lines, worn master cylinder. | Re-bed pads, inspect for fluid leaks, bleed brake system, professional diagnosis. |
| Vibration/Pulsation | Warped rotors, uneven pad wear, loose caliper components. | Inspect/replace rotors, check caliper mounting and guide pins. |
| Pulling to One Side | Sticking caliper, uneven pad wear, contaminated brake fluid. | Inspect calipers, replace pads, flush brake fluid. |
If troubleshooting steps do not resolve the issue, consult a qualified automotive technician.
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | Wagner |
| Model | MX1108 |
| Material | Semi-Metallic (Friction Material), Stainless Steel (Hardware) |
| Auto Part Position | Rear |
| Specification Met | OEM |
| Item Weight | 2.49 pounds |
| Product Dimensions | 8.5 x 7.5 x 5.3 inches |
| UPC | 008536465614 |
| Key Technology | Integrally Molded Insulator (IMI™), Zero-Copper Friction Formulation |
8. Warranty Information
Warranty coverage for Wagner ThermoQuiet MX1108 Semi-Metallic Disc Brake Pads is provided by the manufacturer, Wagner. Specific terms, conditions, and duration of the warranty may vary. Please refer to the warranty documentation included with your product packaging or visit the official Wagner website for detailed information.
9. Support
For technical assistance, product inquiries, or further support regarding your Wagner ThermoQuiet MX1108 Semi-Metallic Disc Brake Pad Set, please visit the official Wagner website or contact their customer service department. Contact information can typically be found on the manufacturer's website or product packaging.
Wagner Official Website: Visit the Wagner Store on Amazon (for general brand information)





