Audi SQ5 Brake Master Cylinder Replacement Costs

Estimate price near me

Service Location

Customer Ratings

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

Brake Master Cylinder Replacement Service

How much does a Brake Master Cylinder Replacement cost?

On average, the cost for a Audi SQ5 Brake Master Cylinder Replacement is $471 with $289 for parts and $182 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2016 Audi SQ5V6-3.0L Turbo	Service typeBrake Master Cylinder Replacement	Estimate$1051.68	Shop/Dealer Price$1275.93 - $1922.34
2015 Audi SQ5V6-3.0L Turbo	Service typeBrake Master Cylinder Replacement	Estimate$768.07	Shop/Dealer Price$918.60 - $1356.78
2014 Audi SQ5V6-3.0L Turbo	Service typeBrake Master Cylinder Replacement	Estimate$768.07	Shop/Dealer Price$918.68 - $1356.92
2017 Audi SQ5V6-3.0L Turbo	Service typeBrake Master Cylinder Replacement	Estimate$1039.97	Shop/Dealer Price$1254.93 - $1894.37
2018 Audi SQ5V6-3.0L Turbo	Service typeBrake Master Cylinder Replacement	Estimate$1043.31	Shop/Dealer Price$1261.02 - $1904.41

Show example Audi SQ5 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

Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

Excellent Rating

(10)

Rating Summary

10

0

0

0

0

10

0

0

0

0

SEE REVIEWS NEAR ME

Geoffrey

21 years of experience

21 reviews

Request Geoffrey

Geoffrey

21 years of experience

Request Geoffrey

by Amanda

Audi SQ5 V6-3.0L Turbo - Pre-purchase Car Inspection - Gaithersburg, Maryland

Great experience! Arrived early to the appointment, was very careful when working in and around the car, and provided a very thorough overview. He was very knowledgeable and made very clear observations and recommendations for things both big and small/cosmetic. I feel better driving my new car knowing that Geoffrey inspected every aspect of it!

Paul

24 years of experience

361 reviews

Paul

24 years of experience

by Larry

Audi SQ5 V6-3.0L Turbo - Brake Rotor/Disc Replacement (Front, Rear) - Tampa, Florida

The service went well

David

11 years of experience

193 reviews

David

11 years of experience

by John

Audi SQ5 V6-3.0L Turbo - Serpentine/Drive Belt - Havertown, Pennsylvania

Fast, efficient, courteous. Will call again

David

11 years of experience

193 reviews

David

11 years of experience

by John

Audi SQ5 V6-3.0L Turbo - Stabilizer Bar Links Replacement (Rear) - Havertown, Pennsylvania

Arrived a few minutes early. Courteous, clean and efficient. Thank you.

Excellent Rating

(10)

Rating Summary

10

0

0

0

0

10

0

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

The Guide to Legal Car Modifications in South Carolina

ARENA Creative / Shutterstock.com Those who live in South Carolina and those who are planning to do so need to understand the laws throughout the state. If you have a modified car or truck, the following laws...

P2089 OBD-II Trouble Code: A Camshaft Position Actuator Control Circuit High Bank1

P2089 P2089 code definition A Camshaft Position Actuator Control Circuit High Bank1 What the P2089 code means The P2089 code means that the A camshaft position actuator was found to have high voltage. The vehicle’s electronic control unit (ECU) (https://www.yourmechanic.com/article/what-is-a-vehicle-s-electrical-control-unit)...

A Buyer’s Guide to the 2012 Buick LaCrosse

Over Over the past several years, Buick has returned to form when it comes to luxury sedans, and the 2012 Buick LaCrosse is a standout even when compared to some of the other big names in luxury. Key Features The...

Car overheats only at low speed

Hello. It is possible that the water pump (https://www.yourmechanic.com/services/water-pump-replacement) is not pumping properly or that the radiator (https://www.yourmechanic.com/services/radiator-replacement) has a partial clog which is causing the car to overheat at low speeds. Have a certified technician, like one from YourMechanic,...

Would a knock sensor on an 04 infinity cause it to not star?t

Hi there. The knock sensors are designed to produce a voltage when they hear a knock noise from the engine internal parts, so I'm not quite sure if a faulty knock sensor would impact the starting ability on the vehicle....

One of my fuel injector burned out what's wrong?

If you are referring to the electrical solenoid within the injector, like any electrical part it can fail due to degradation of the insulation, wire breaks and so forth. The injector can be tested while still on the car and...

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