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Wagner Brake MX978A Disc Brake Pad Set - Rear
| Brand | Wagner Brake MX978A |
|---|---|
| Position | Rear |
| Abutment Clips Included | Yes |
| Chamfered Edges | Yes |
| FMSI Number | 7908-D978 |
| Friction Material Composition | Semi-Metallic |
| Inner Pad Friction Material Thickness | 0.606 |
| Outer Pad Friction Material Thickness | 0.606 |
| Pad Shims Included | Yes |
| Pad Wear Sensor Included | No |
| Slotted | No |
| Product line | ThermoQuiet |
| Fits | Audi, Porsche, and Volkswagen · 34 vehicles |
Zero-copper formula. Cleaner friction material for a more environmentally conscious brake pad set.
IMI technology. Integrally molded insulator helps reduce noise for quieter operation.
Semi-metallic construction. Balanced friction material with shims, chamfers, and abutment clips included.
Cross-references Centric Parts 104.09780, Centric Parts 106.09780 and Centric Parts 300.09780 for the same application. See all 17.
Wagner ThermoQuiet MX978A Rear Brake Pads
Wagner Brake ThermoQuiet MX978A disc brake pads are built for rear brake service on select Audi, Porsche, and Volkswagen applications. This set uses a semi-metallic friction formula with zero-copper content and Integrally Molded Insulator (IMI) technology to support quieter braking performance.
Key Features
- Zero-copper friction formulation
- Integrally Molded Insulator (IMI) technology for reduced brake noise
- Semi-metallic friction material
- Pad shims included
- Abutment clips included
- Chamfered edges for smoother pad contact
- Outer and inner pad friction thickness: 0.606
- FMSI number: 7908-D978
Product Details
The Wagner ThermoQuiet line focuses on controlled braking feel and noise management through pad construction rather than added complexity. The MX978A rear disc brake pad set uses a semi-metallic compound with shims and an integrally molded insulator to help reduce vibration at the caliper interface. It is a direct-fit option for rear brake service on 2003-2015 Porsche Cayenne, 2004-2010 Volkswagen Touareg, and 2007-2015 Audi Q7 applications listed below. This part cross-references Raybestos Brakes PGD978M for the same application.
Vehicle Fitment
- Fits 2007-2015 Audi Q7, rear
- Fits 2008-2010 Porsche Cayenne, rear
- Fits 2003-2006 Porsche Cayenne, rear
- Fits 2010 Volkswagen Touareg, rear, 2 piston caliper
- Fits 2006-2009 Volkswagen Touareg, rear, 4 piston caliper
- Fits 2005-2006 Porsche Cayenne, rear, without E81 Power Package
- Fits 2004-2005 Volkswagen Touareg, rear
Common Brake Service Issues
- Rear brake squeal or vibration during stops
- Worn pad friction material on Audi Q7, Porsche Cayenne, or Volkswagen Touareg rear brakes
- Uneven pad contact caused by aged shims or hardware
- Reduced braking consistency from worn semi-metallic pads
- Brake noise after pad replacement when OE-style noise control is needed
Installation Notes
Confirm rear caliper configuration before ordering, especially on Volkswagen Touareg applications with 2 piston or 4 piston calipers. Inspect rotors, caliper slides, and mounting surfaces during installation, and replace worn hardware only when required by the vehicle condition. Verify the FMSI number 7908-D978 and compare the old pad shape to the new set before assembly.
Quality Assurance
Wagner Brake ThermoQuiet pads are engineered with a zero-copper friction formulation and IMI technology to support quieter operation in everyday braking service. The MX978A is built to OE-style specifications for the listed rear applications and uses included shims and abutment clips to support proper fitment.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2015 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2014 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2013 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2012 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2011 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2010 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2010 | Porsche | Cayenne | S | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2010 | Porsche | Cayenne | GTS | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2010 | Porsche | Cayenne | Base | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2010 | Porsche | Cayenne | S Transsyberia | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2010 | Volkswagen | Touareg | — | Rear | 2 Piston Caliper; Installation Hardware Included; OE Pad Material is Semi-Metallic; ThermoQuiet |
| 2009 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2009 | Porsche | Cayenne | S | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2009 | Porsche | Cayenne | GTS | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2009 | Porsche | Cayenne | Base | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2009 | Volkswagen | Touareg | — | Rear | 4 Piston Caliper; Installation Hardware Included; OE Pad Material is Semi-Metallic; ThermoQuiet |
| 2008 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2008 | Porsche | Cayenne | S | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2008 | Porsche | Cayenne | GTS | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2008 | Porsche | Cayenne | Base | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2008 | Volkswagen | Touareg | — | Rear | 4 Piston Caliper; Installation Hardware Included; OE Pad Material is Semi-Metallic; ThermoQuiet |
| 2007 | Audi | Q7 | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2007 | Volkswagen | Touareg | — | Rear | 4 Piston Caliper; Installation Hardware Included; OE Pad Material is Semi-Metallic; ThermoQuiet |
| 2006 | Porsche | Cayenne | Turbo | Rear | without E81 Power Package; Installation Hardware Included; OE Pad Material is Semi-Metallic; ThermoQuiet |
| 2006 | Porsche | Cayenne | S | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2006 | Porsche | Cayenne | Base | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2006 | Volkswagen | Touareg | — | Rear | 4 Piston Caliper; Installation Hardware Included; OE Pad Material is Semi-Metallic; ThermoQuiet |
| 2005 | Porsche | Cayenne | Turbo | Rear | without E81 Power Package; Installation Hardware Included; OE Pad Material is Semi-Metallic; ThermoQuiet |
| 2005 | Porsche | Cayenne | S | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2005 | Porsche | Cayenne | Base | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2005 | Volkswagen | Touareg | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2004 | Porsche | Cayenne | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2004 | Volkswagen | Touareg | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
| 2003 | Porsche | Cayenne | — | Rear | Disc Brake Pad Set with OE semi-metallic material and installation hardware included.; ThermoQuiet |
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