Small amount of coolant was put into the brake fluid

Tiny
SKENNYSEA
  • MEMBER
  • 2000 RENAULT CLIO
  • 80,000 MILES
I put a small amount of coolant in the brake fluid about a half a cup. Will it effect the brakes?
Wednesday, July 31st, 2019 AT 2:32 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
Welcome to 2CarPros.

Yes, that is a problem. If you used the vehicle since you did this, the system should be flushed and inspected by a trained individual. If it wasn't used and the brakes never applied after the mistake, remove everything from the master cylinder, wipe everything clean, and refill with brake fluid. I would still have it looked at for safety.

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

Let me know if you have other questions.

Joe
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Wednesday, July 31st, 2019 AT 6:34 AM

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