Infiniti Q70L 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 Infiniti Q70L Brake Master Cylinder Replacement is $462 with $280 for parts and $182 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2018 Infiniti Q70LV6-3.7L	Service typeBrake Master Cylinder Replacement	Estimate$1092.60	Shop/Dealer Price$1320.06 - $1991.89
2017 Infiniti Q70LV8-5.6L	Service typeBrake Master Cylinder Replacement	Estimate$1080.89	Shop/Dealer Price$1306.05 - $1976.16
2015 Infiniti Q70LV8-5.6L	Service typeBrake Master Cylinder Replacement	Estimate$750.23	Shop/Dealer Price$894.57 - $1318.07
2016 Infiniti Q70LV8-5.6L	Service typeBrake Master Cylinder Replacement	Estimate$1080.89	Shop/Dealer Price$1307.89 - $1979.38
2017 Infiniti Q70LV6-3.7L	Service typeBrake Master Cylinder Replacement	Estimate$1080.89	Shop/Dealer Price$1307.99 - $1979.57
2016 Infiniti Q70LV6-3.7L	Service typeBrake Master Cylinder Replacement	Estimate$1080.89	Shop/Dealer Price$1308.21 - $1979.94
2015 Infiniti Q70LV6-3.7L	Service typeBrake Master Cylinder Replacement	Estimate$750.23	Shop/Dealer Price$894.60 - $1318.13
2018 Infiniti Q70LV8-5.6L	Service typeBrake Master Cylinder Replacement	Estimate$1080.89	Shop/Dealer Price$1306.08 - $1976.21

Show example Infiniti Q70L 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 Infiniti mechanics

Real customer reviews from Infiniti owners like you.

Excellent Rating

(8)

Rating Summary

8

0

0

0

0

8

0

0

0

0

SEE REVIEWS NEAR ME

Tinashe

14 years of experience

781 reviews

Request Tinashe

Tinashe

14 years of experience

Request Tinashe

by Klan

Infiniti Q70L V6-3.7L - Oil Change - Atlanta, Georgia

Very knowledgeable good service as always.

Behrak

10 years of experience

403 reviews

Behrak

10 years of experience

by Klan

Infiniti Q70L V6-3.7L - Oil Change - Suwanee, Georgia

Great mechanic!

Sebastian

6 years of experience

254 reviews

Request Sebastian

Sebastian

6 years of experience

Request Sebastian

by Kenya

Infiniti Q70L V6-3.7L - Oil Change - Lake Worth, Florida

Great customer service!!

Peter

37 years of experience

346 reviews

Peter

37 years of experience

by Scott

Infiniti Q70L V6-3.7L - Brake Pads Replacement (Rear) - Scottsdale, Arizona

Very accommodating and good communication. He took the time to explain the work and so far no problems, nor do I expect any.

Excellent Rating

(8)

Rating Summary

8

0

0

0

0

8

0

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

Why Can’t I Top Off My Tank?

Nearly Nearly everyone who has been behind the wheel of a vehicle has pumped gas into the fuel tank until the tank was full. When the tank is full, the nozzle makes a ‘clunk’ sound and the gas stops flowing....

B1962 OBD-II Trouble Code: Seat Horizontal Forward/Rearward Potentiometer Feedback Circuit Failure

B1962 means there is an error with a power seat potentiometer circuit, likely due to a defective potentiometer or damaged electrical components.

5 Essential Things to Know About Vehicle Covers

Whether Whether you are driving a car, truck or SUV, a vehicle cover is critical to ensure that your vehicle is safe from the elements and maintains that just-off-the-lot look. Leaving your car or truck out in the rain can...

All of the electrical components shut down slowly while driving

Most manufacturers use a voltage regulator (part of the alternator) to keep the system voltage near 13 volts. This keeps the battery charging in almost all conditions, no matter what accessories you are running. Honda uses a device called an...

2010 Ford F150 I keep getting a code for oxygen sensor about once every 10 days. Does that mean it is on the verge of going bad?

A code to one of the 4 O2 sensors does not always mean the sensor is bad or going bad. It could be another problem with the fuel system or intake system causing the code. You did not give us...

I’m seeing and smelling smoke and my traction control light is on.. is this a common problem? Also my ABS light blinks on occasion

Smoke from under the hood will be oil or coolant leaks. If I had to guess, I'd say you probably have some oil leaks that are getting oil on the exhaust manifold which burns when it hits the hot surface....

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 (844) 997-3624 · hi@yourmechanic.com