Audi 90 Quattro Shakes When Braking

Common Causes of Brake Shaking in Your Audi 90 Quattro and How to Resolve Them

Find Repair Location
Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
55% chance it's the
Brake Rotor
0%
20% chance it's the
Brake Pad
0%
10% chance it's the
Old Brake Fluid
0%
15% chance it's
Something else
The most common reasons a Audi 90 Quattro shakes when braking are bad brake rotors, bad brake pads, or a bad wheel bearing.
  • Brake Rotor: A warped or worn brake rotor can cause vibrations during braking and reduced stopping power.
  • Brake Pad: A worn or damaged brake pad can lead to reduced braking efficiency and increased stopping distances.
  • Old Brake Fluid: Old brake fluid can absorb moisture over time, leading to reduced braking performance and potential corrosion within the brake system.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

Troubleshooting Shaking Issues When Braking in an Audi 90 Quattro

When faced with shaking issues while braking in your Audi 90 Quattro, it's essential to adopt a methodical diagnostic approach. Start by inspecting the brake pads and rotors, as these components are often the culprits behind such problems. Look for signs of wear, such as uneven surfaces or excessive thickness loss on the pads, and check the rotors for warping or scoring. If the pads appear contaminated with dirt or debris, cleaning or replacing them may resolve the issue. Next, examine the wheel bearings for any play or noise, as worn bearings can contribute to vibrations during braking. If these initial checks do not reveal the problem, consider the condition of the entire braking system, including brake fluid levels and the integrity of brake lines. Regular maintenance and timely replacement of worn parts are crucial for ensuring optimal braking performance and safety in your Audi 90 Quattro. By following this structured approach, you can effectively diagnose and address the shaking issues, enhancing your vehicle's performance and your driving experience.

What Causes Shaking When Braking in an Audi 90 Quattro?

When experiencing shaking while braking in an Audi 90 Quattro, it's essential to understand the common problems that could be causing this unsettling issue. One of the primary culprits is often the brake rotors, which can warp due to excessive heat from prolonged braking or sudden stops. This warping creates an uneven surface that leads to pulsation and shaking during braking. Additionally, worn brake pads can contribute to the problem; as they degrade, the metal backing plate may come into contact with the rotor, resulting in both noise and vibration. Another factor to consider is the condition of the wheel bearings, as worn or damaged bearings can also lead to instability when braking. Furthermore, uneven pad material can cause vibrations, which may be mitigated by scrubbing the rotors with garnet paper to restore a smoother surface. By examining these components, DIYers can effectively diagnose and address the shaking issue, ensuring a safer and more comfortable driving experience.

Why is My Audi 90 Quattro Shaking When Braking?

When your Audi 90 Quattro shakes while braking, it’s crucial to address the issue without delay. Ignoring this symptom can lead to more severe problems, such as compromised safety and increased repair costs. The shaking often indicates underlying issues like warped brake rotors or worn brake pads, which can significantly affect your vehicle's braking performance. If left unchecked, these problems can escalate, potentially leading to brake failure or damage to other components, such as wheel bearings. Additionally, the vibrations felt through the steering wheel and brake pedal can distract you while driving, increasing the risk of an accident. Therefore, it’s essential to diagnose and resolve the cause of the shaking as soon as possible, ensuring both your safety and the longevity of your vehicle. Taking proactive measures not only enhances your driving experience but also prevents further damage that could result from neglecting these warning signs.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.