Circle Auto Protect Blog

What You Need to Know About Brake Safety

Dec 16, 2019
Michael Robinson

Have you ever experienced this nightmare situation?

You’re driving along, and you know you’re approaching a stop up ahead. You move your foot from the gas to the brake, getting ready for when you’ll need to make a full stop. But – suddenly something is not right. You step harder on the brake, but your car is not stopping as it should.

Worse still, you know your brake fluid had been checked and your brake pads had been replaced recently. What could be wrong?  

The answer is probably your master brake cylinder.

Here’s some advice for dealing with your faulty brakes: 

1.    Understanding the Master Brake Cylinder

Many car owners don’t realize how common it is for there to be a problem with their master brake cylinder.

The master brake cylinder is that car part that serves as a hydraulic pump. It’s the part that gets filled with brake fluid. Per the laws of physics, when you step on the brake, a piston causes the fluid to create pressure, and the pressure is what causes the brakes to engage and your car to stop.

2.    What Causes Master Brake Cylinder Failure

If your master brake cylinder has failed, the most likely cause is a faulty or damaged seal.

In order for the hydraulic pressure mechanism to work properly, the system needs to be sealed air tight. If the seal isn’t tight, fluid will flow and seep around the master cylinder, and you won’t have the pressure needed to fully activate the brakes. A very dangerous situation if you’re driving and need to make a sudden stop!

One issue with the master brake cylinder is that its failure can be intermittent. For example, cold weather can affect the seal. Oftentimes, once your car heats up, the seal will expand and tighten so that you can operate your brakes. But it’s better to be safe than sorry

3.    Checking Your Brakes

All cars should be brought in for routine maintenance, and making sure your brakes get a thorough check-up should be high on you list of priorities as a car owner.

Unfortunately, some mechanics will check your brake fluid and brake pads, but neglect the master brake cylinder, so it’s important for you as the car owner to be proactive and make sure the whole system was inspected.

Luckily, it’s typically pretty quick and inexpensive to repair a faulty seal or cylinder, especially if you have warranty coverage for auto repairs.

If you suspect something may be wrong with your brakes, you ought to visit a mechanic immediately. Tell them your experience with the brakes and make sure they check the entire brake system. It’s worth it to prevent a serious accident from happening!

If you’re interested to find out more about an extended car warranty that will protect your vehicle with a coverage plan so you can go to any ASE-certified mechanic nationwide, get a quote from one of our Circle Auto Protect Representatives.   

All our coverage plans come with additional benefits including 24/7 roadside assistance, locksmith services, and rental car reimbursement.

Give us a call at: 833-247-2530 (833-CIRCLE0). Or, you can get a quick quote for your vehicle at:


Vehicles up to 140k miles are eligible for our Auto Plans.

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