2017 Mercedes-Benz GLA45 AMG Makes Noise When Braking

Common Causes of Brake Noise in Your 2017 Mercedes-Benz GLA45 AMG and How to Resolve Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Brake Pads
0%
25% chance it's the
Brake Rotors
0%
15% chance it's the
Brake Caliper
0%
20% chance it's
Something else
The most common reasons a 2017 Mercedes-Benz GLA45 AMG makes noise when braking are bad brake pads, bad brake rotors, or bad brake caliper.
  • Brake Pads: Worn or glazed brake pads can lead to reduced braking efficiency and increased stopping distances.
  • Brake Rotors: A warped or worn brake rotor can cause vibrations during braking and reduced braking efficiency.
  • Brake Caliper: A seized or malfunctioning brake caliper can result in dragging brakes, overheating, and uneven wear on the brake pads.
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.

What could be causing the noise when braking in a 2017 Mercedes-Benz GLA45 AMG, and how should I diagnose it?

When faced with noise while braking in your 2017 Mercedes-Benz GLA45 AMG, a methodical diagnostic approach is essential for identifying the root cause. Begin with a visual inspection of the brake components, focusing on the brake pads and rotors for signs of wear or damage. Look for uneven surfaces or excessive wear on the pads, as these are common culprits of brake noise. Next, listen carefully to the type of noise produced during braking; different sounds can indicate specific issues, such as squealing suggesting worn pads or grinding indicating rotor problems. A test drive can help replicate the noise under various braking conditions, allowing you to observe any additional symptoms that may arise. Following this, inspect the brake calipers for any sticking or malfunctioning parts, as these can also contribute to noise. If the problem remains unclear after these checks, it may be wise to consult a professional mechanic for a comprehensive evaluation. By following this structured approach, you can effectively diagnose and address the noise issue, ensuring your vehicle's braking system operates smoothly and safely.

What could be causing the noise when braking in a 2017 Mercedes-Benz GLA45 AMG?

When you hear noise while braking in your 2017 Mercedes-Benz GLA45 AMG, it’s essential to understand the common problems that could be at play. One of the primary culprits is worn brake pads, which can produce a grinding or squealing sound as they reach the end of their lifespan. Additionally, issues with the brake rotors, such as warping or uneven wear, can lead to similar noises, indicating that they may need resurfacing or replacement. Brake caliper problems, including sticking or misalignment, can also contribute to noise by causing uneven pressure on the brake pads. Furthermore, the accumulation of brake dust or debris can create friction, resulting in unwanted sounds during braking. Lastly, insufficient lubrication on brake components can lead to increased friction and noise, highlighting the importance of regular maintenance. If you’re experiencing these issues, a thorough inspection of your braking system can help identify the specific cause, allowing you to address it effectively and ensure safe driving.

How urgent is it to address the braking noise in my 2017 Mercedes-Benz GLA45 AMG?

When you hear braking noise in your 2017 Mercedes-Benz GLA45 AMG, it’s crucial to act swiftly. Ignoring these sounds can lead to serious consequences, including further wear on your brake pads and rotors, which can escalate repair costs and compromise your vehicle's safety. The noise may indicate underlying issues such as worn brake pads, warped rotors, or problems with the brake calipers, all of which require immediate attention. For DIY enthusiasts, while it may be tempting to delay repairs, doing so could result in more significant damage that not only affects your vehicle's performance but also poses a safety risk on the road. Regular maintenance and prompt repairs are essential to ensure your braking system functions effectively, safeguarding both your vehicle and your well-being. Therefore, if you notice any unusual braking sounds, it’s advisable to inspect the system as soon as possible to prevent further complications.

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