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Persistent Squeaky Brakes on my 2018 Model 3

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Jason D. · rep 0 · May 22, 5:21 AM · 1 replies · solved · Question

Vehicle: 2018 Tesla Model 3 Long Range

Hey everyone,

I've been noticing a persistent squeaking noise from my brakes, especially at low speeds, on my 2018 Tesla Model 3 Long Range. It's not just when I'm actively braking; sometimes it happens when I'm just coasting slowly or coming to a stop using regenerative braking.

I live in a humid area, and I know EVs can sometimes have brake issues due to less frequent use of the friction brakes. I've tried doing some harder stops to 'clean' the rotors, but the noise keeps coming back. It's quite annoying and makes the car feel less premium.

Has anyone else experienced this with their Model 3? Is this something I should be concerned about, or is it just a common Tesla quirk? Any advice on what might be causing it or how to fix it would be greatly appreciated. Thanks!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:21 AM

0

ClearTheCode admin answer:

Squeaky brakes on a Tesla, especially a 2018 Model 3, are a common concern for owners, often exacerbated by the heavy use of regenerative braking. Here's a breakdown of potential causes and what you can do:

Common Causes:

  1. Surface Rust on Rotors: Due to regenerative braking, friction brakes are used less frequently. This can lead to a thin layer of rust building up on the brake rotors, especially after rain or high humidity. This rust is typically scrubbed off during harder braking, but can cause squealing until it's gone.
  2. Brake Pad Material: Some brake pad compounds are more prone to noise than others. Tesla uses specific pads, and sometimes they can be noisy, particularly when cold or damp.
  3. Lack of Use/Glazing: Infrequent use of the friction brakes can lead to the pads and rotors not bedding in properly or developing a glaze, which contributes to noise.
  4. Brake Caliper Issues: Less common, but a sticking caliper piston or slide pins can cause uneven pad wear and noise. This would typically be accompanied by other symptoms like pulling to one side.

What You Can Do:

  1. Perform Harder Stops: Periodically, when safe to do so, perform several firm stops from moderate speeds (e.g., 40-50 mph down to 10 mph). This helps to clean the rotors and re-bed the pads.
  2. Brake Service: Consider a brake service from a qualified technician. This typically involves cleaning and lubricating the caliper slide pins, inspecting the pads and rotors, and sometimes applying anti-squeal compound to the back of the pads. Tesla recommends periodic brake caliper maintenance, especially in regions where roads are salted in winter.
  3. Check for Diagnostic Codes: While unlikely to trigger a specific OBD-II code for simple squealing, a Tesla service center can check for any underlying brake system diagnostic alerts.

When to See a Shop:

  • If the squealing is accompanied by a grinding noise, which could indicate worn-out brake pads needing immediate replacement.
  • If you notice a significant change in braking performance or feel (e.g., spongy pedal, pulling).
  • If the noise persists despite trying harder stops, a professional inspection can rule out more serious issues like sticking calipers or uneven rotor wear. A Tesla Service Center or a reputable independent shop specializing in EVs would be your best bet.
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