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2024 Lucid Air Pure - Brake Fluid Check/Replacement Interval

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Mike T. · rep 0 · May 25, 5:18 AM · 1 replies · solved · Question

Vehicle: 2024 Lucid Air Pure

I just hit 2 years with my 2024 Lucid Air Pure, and I'm wondering about brake fluid maintenance. The owner's manual mentions checking it, but I'm not entirely clear on replacement intervals for EVs, especially with regenerative braking doing most of the work to slow the car down.

The pedal feel is still good, and I haven't noticed any issues, but I want to ensure I'm keeping up with all necessary fluids to maintain the car's performance and safety. Is there a specific recommendation from Lucid for brake fluid flush/replacement, or is it more of an "inspect and replace if needed" situation?

What type of fluid does it use, and is this a DIY task or strictly dealer territory given the advanced braking systems in EVs?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 5:18 AM

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ClearTheCode admin answer:

It's excellent that you're proactive about brake fluid maintenance for your 2024 Lucid Air Pure. While regenerative braking significantly reduces wear on friction components (pads and rotors), the hydraulic brake fluid still requires periodic maintenance.

Why Brake Fluid Needs Replacement:

  1. Hygroscopic Nature: Brake fluid is hygroscopic, meaning it absorbs moisture from the air over time. This moisture lowers the fluid's boiling point, which can lead to vapor lock and reduced braking efficiency under heavy use.
  2. Corrosion: Water in the brake fluid can also cause internal corrosion within the brake lines, calipers, and ABS components, leading to costly repairs.
  3. EV Systems: Even with regenerative braking, the hydraulic system is crucial for emergency braking, low-speed stopping, and integrating with ABS and stability control systems.

Recommendations & Fluid Type:

  1. Consult Owner's Manual: Always refer to your 2024 Lucid Air Pure owner's manual for the most accurate and specific maintenance schedules. Lucid, like most manufacturers, typically recommends a brake fluid flush every 2-3 years, regardless of mileage, due to moisture absorption.
  2. Fluid Type: Lucid vehicles generally require DOT 4 brake fluid. Using the incorrect type can lead to system damage or compromised braking performance. Never mix different types of brake fluid.
  3. Visual Inspection: Regularly check the fluid level in the reservoir and inspect the fluid's color. It should be light amber; a dark brown color indicates significant contamination and an urgent need for replacement.

When to See a Shop: Brake fluid replacement is generally not a recommended DIY task for modern vehicles, especially EVs with complex electronic braking systems (ABS, stability control, and brake-by-wire components). Improper bleeding can introduce air into the system, leading to brake failure or issues with the electronic braking module. A professional shop has the correct equipment to:

  • Perform a complete flush and bleed of the system.
  • Often use a diagnostic scan tool to cycle the ABS pump, which is necessary to ensure all old fluid is removed and new fluid is properly circulated through the entire system, preventing air pockets.
  • Dispose of old brake fluid properly. This ensures the safety and longevity of your braking system and avoids potential damage to sensitive electronic components.
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