logo

Audi Q3 Quattro Brake Master Cylinder Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(11)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

(11)

Brake Master Cylinder Replacement Service

How much does a Brake Master Cylinder Replacement cost?

On average, the cost for a Audi Q3 Quattro Brake Master Cylinder Replacement is $223 with $128 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2016 Audi Q3 QuattroL4-2.0L TurboService typeBrake Master Cylinder ReplacementEstimate$736.37Shop/Dealer Price$909.22 - $1388.38
2015 Audi Q3 QuattroL4-2.0L TurboService typeBrake Master Cylinder ReplacementEstimate$716.37Shop/Dealer Price$889.25 - $1368.43
2018 Audi Q3 QuattroL4-2.0L TurboService typeBrake Master Cylinder ReplacementEstimate$379.63Shop/Dealer Price$456.68 - $658.56
2017 Audi Q3 QuattroL4-2.0L TurboService typeBrake Master Cylinder ReplacementEstimate$351.13Shop/Dealer Price$425.16 - $624.76
Show example Audi Q3 Quattro Brake Master Cylinder Replacement prices

What is the brake master cylinder and how does it work?

The brake master cylinder has a piston that pressurizes fluid in the brake lines to each wheel cylinder as you apply force to the brake pedal. That pressure moves the pistons that are in the wheel cylinders. As the pistons in those wheel cylinders move, they force the brake pads or shoes tightly against the rotors or drums allowing the car to stop quickly.

The size of the pistons in the master cylinder and in the wheel cylinders are carefully selected when designing a car. This allows drivers to apply moderate pressure on the brake pedal when stopping, but creates tremendous pressure applied at the wheel cylinders. A car can then stop quickly even at high speeds. Depending on how much force is applied to the brake pedal, the pressure in a car’s brake lines will typically be in the range of 800 PSI to 2,000 PSI.

Master Cylinder

When to replace the master cylinder?

  • External fluid leaks. There should be no fluid visible on the external surfaces of any portion of the master cylinder or the plastic fluid reservoir.
  • Low, slowly falling, or spongy brake pedal. Faulty internal seals on the piston can cause internal leaks and also seepage of brake fluid into the power assist brake booster. Internal leaks will typically be accompanied by a low pedal, a spongy brake pedal, or a pedal that slowly sinks as you maintain pressure. In all cases, you will experience reduced braking abilities.
  • Discolored brake fluid. No brake fluids, other than those specified for the year, make, and model, are fully compatible with a car’s internal rubber seals in the master cylinder. Discoloration of brake fluid can also occur due to moisture and particulate contaminants in the fluid.
  • Warning lights on the dash. If the brake system warning light illuminates, there are several potential causes but failure of the master cylinder is in the list of causes that would have to be investigated.

How do mechanics replace the brake master cylinder?

  • On vehicles with power brakes, the master cylinder is bolted to the metal housing of the power brake booster. There is usually an electrical plug connecting to a brake fluid level sensor on the master cylinder reservoir and that plug must be disconnected.
  • Once all steel brake lines are disconnected from the master cylinder, the master cylinder is unbolted from the brake booster and removed from the vehicle.
  • The new master cylinder must be bench-bled to expel air from internal passages that contain the piston. Then the new master cylinder is bolted to the brake booster and the brake lines are reattached. The electrical plug for the fluid level sensor is reconnected.
  • Whenever a new master cylinder is installed, brakes lines to wheel positions must be bled to remove air, old fluid and contaminants. If your vehicle is equipped with anti-lock brakes, the mechanic may use a bidirectional scan tool during brake bleeding to actuate the ABS pump, thus ensuring that all air is removed from the complex valving in the ABS system.
  • All brake line connections that were removed during the master cylinder replacement are inspected for any leakage and the vehicle is road tested to ensure normal operation of the brakes.

Is it safe to drive with a master cylinder problem?

No, any fault in the master cylinder, which is part of the braking system creates a safety risk. A fully operational brake system is essential to quickly stopping your car. Driving a vehicle isn’t safe, if the master cylinder is leaking or has other faults, as braking distances might be longer than normal. The braking system on a vehicle is among the most important safety systems and must be fully functional to safely drive your vehicle.

When replacing the master cylinder keep in mind:

  • The master cylinder is only one component of many in a vehicle’s braking system. During replacement of the master cylinder, all vehicle braking system components should be inspected to ensure maximum braking power is available.
  • The amount of friction material remaining on the brake pads and brake shoes should be verified.
  • Brake lines and flexible rubber hoses at each wheel position should be inspected for corrosion and deterioration.
  • The power brake booster should be evaluated to ensure that power assist is working properly.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of Audi Q3 Quattro services completed
121+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
700+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

Excellent Rating

(11)
Rating Summary
11
0
0
0
0
11
0
0
0
0

Torrieanto

12 years of experience
632 reviews
Request Torrieanto
Torrieanto
12 years of experience
Request Torrieanto
by Rosaline
Audi Q3 Quattro L4-2.0L Turbo - Oil Change - Riverview, Florida
He is awesome. Fast work

Jason

32 years of experience
507 reviews
Request Jason
Jason
32 years of experience
Request Jason
by Valerie
Audi Q3 Quattro L4-2.0L Turbo - Car is not starting - Palo Alto, California
Jason is an excellent Thoughtful mechanic! He gave me a bit of info about why my battery had died (my obd device drained it) and he educated me about other parts Of my to look out for! 10 out of 10 ! Very nice fast and reliable service!

Anthony

20 years of experience
17 reviews
Request Anthony
Anthony
20 years of experience
Request Anthony
by Reginald
Audi Q3 Quattro L4-2.0L Turbo - Car is not starting - Stockbridge, Georgia
The experience was great. He came in triaged the issue and took care of the issue in no time flat. I would definitely recommend you guys to my friends and family.

Jose

9 years of experience
63 reviews
Request Jose
Jose
9 years of experience
Request Jose
by Christian
Audi Q3 Quattro L4-2.0L Turbo - Oil Change - Burlingame, California
Amazing service

Excellent Rating

(11)
Rating Summary
11
0
0
0
0
11
0
0
0
0
Number of Audi Q3 Quattro services completed
121+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
700+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

What is a Certified Pre-Owned Vehicle?
Certified Pre-Owned or CPO cars are used cars that have been inspected and warrantied by the manufacturer. CPO programs cover car problems or defects.
Read more
P0556 OBD-II Trouble Code: Brake Booster Pressure Sensor Circuit Range/Performance
P0556 code means there is a problem with the brake booster pressure sensor circuit often due too shorted electrical circuitry or defective valves.
Read more
How to Install an LCD Monitor in Your Car
Monitors are installed in the console, mounted on the ceiling, or wired into the headrests of a car. LCD monitors provide entertainment or GPS help.
Read more

How do I use the power outlets?

You’ll find three 12-volt power outlets in your car. These are designed to be used with portable electronic devices (charging your cell phone, for instance). They are NOT compatible with cigarette lighters. Using them is simple. Here’s what you need...
Read more

How do I reply to a text message?

You can reply to a text message with a handful of provided responses. For safety reasons, you cannot create your own text messages while driving, or edit the preset messages. Replying to a message is easy: 1. Press the Phone...
Read more

The check Fuel Fill Inlet light is on in 2011 Ford Fusion. It has no fuel cap.

The reason that your gas cap light has come on is likely because the gas cap is missing. I would strongly recommend purchasing a new gas cap to put on. This will not only clear the check engine light but...
Read more
  1. Home
  2. Estimates
  3. Audi
  4. Q3 Quattro
  5. Brake Master Cylinder Replacement

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com

Read FAQ
GET A QUOTE