Said It Here

Brake fluid over max after changing pads

Replacing worn brake pads pushes the fluid back up, causing the reservoir to overfill if you previously added fluid thinking it was low. You will need to use a syringe to suction out the excess fluid so it sits below the maximum line.

Overview
People affected2 accounts across 1 forum
Workarounds found3 items attempted
Community agreement5 total upvotes

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Suctioning out excess fluid using a large hypodermic syringe or tool until it reaches the correct marking
    Did this help you?
  2. 2
    Leave the excess fluid alone since the system has room to expand
    Did this help you?
  3. 3
    Use a syringe to suck out the extra fluid
    Did this help you?

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/MechanicAdvice2 people · September 2026 – October 2026

“I replaced my brake pads the other day and after I was done I noticed the brake fluid which was once level was now full to the top. Should I suction some out or leave it?”source ↗

cactire · r/MechanicAdvice · 2 upvotes

“Hi can someone help me overcome my ocd I fillled up break fluid today and went up little bit over max . I hope you are able to see the picture is it okay or do I need to get a syringe and remove some.”source ↗

Mobile-Quiet-788 · r/MechanicAdvice · 2 upvotes

“I did add some a while ago when I got the car thinking it was low, but I see now, thank you”source ↗

cactire · r/MechanicAdvice · 1 upvotes

Where this came up

People with this problem also raised