Mercedes-Benz GL350 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 Mercedes-Benz GL350 Brake Master Cylinder Replacement is $476 with $280 for parts and $196 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2012 Mercedes-Benz GL350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$776.96	Shop/Dealer Price$925.77 - $1352.36
2011 Mercedes-Benz GL350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$764.35	Shop/Dealer Price$908.83 - $1332.17
2010 Mercedes-Benz GL350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$764.35	Shop/Dealer Price$908.89 - $1332.28
2013 Mercedes-Benz GL350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$909.61	Shop/Dealer Price$1090.46 - $1622.79
2015 Mercedes-Benz GL350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$909.61	Shop/Dealer Price$1094.07 - $1629.11
2014 Mercedes-Benz GL350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$909.61	Shop/Dealer Price$1090.81 - $1623.39
2016 Mercedes-Benz GL350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$933.53	Shop/Dealer Price$1120.40 - $1670.70

Show example Mercedes-Benz GL350 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 Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(20)

Rating Summary

20

0

0

0

0

20

0

0

0

0

SEE REVIEWS NEAR ME

Dustin

9 years of experience

65 reviews

Dustin

9 years of experience

by GWEN

Mercedes-Benz GL350 V6-3.0L Turbo Diesel - Oil Change - Houston, Texas

Professional and on time

Oscar

22 years of experience

162 reviews

Oscar

22 years of experience

by GWEN

Mercedes-Benz GL350 V6-3.0L Turbo Diesel - Serpentine/Drive Belt - Houston, Texas

EXCELLENT MECHANIc, professional, and knowledgable

Amir

4 years of experience

56 reviews

Amir

4 years of experience

by Zafer

Mercedes-Benz GL350 V6-3.0L Turbo Diesel - Pre-purchase Car Inspection - Dallas, Texas

Excellent service, with great recommendations On time and great communication Thank you Zafer

Daniel

22 years of experience

346 reviews

Daniel

22 years of experience

by GWEN

Mercedes-Benz GL350 V6-3.0L Turbo Diesel - Check Engine Light is on - Houston, Texas

Excellent and Professional services!

Excellent Rating

(20)

Rating Summary

20

0

0

0

0

20

0

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

2012 Chevrolet Equinox vs. 2012 GMC Terrain: Which One Should I Buy?

The mid-size crossover SUV category offers the comfort and size of an SUV, but on the platform of a car, giving it the look and feel of a large hatchback. The unibody construction typical of passenger vehicles is used instead...

How to Replace a Secondary Air Injection Pump

A faulty secondary air injection pump can result in increased emissions, engine performance issues, and an illuminated Check Engine Light.

How to Get Smog Technician Certified in Virginia

Automotive technician jobs include smog certified emissions inspectors. In Virginia, you need to work at a certified repair facility.

Cad wont go faster than 35mph

Hello. From what you describe it would appear that some sort of serious issue may have occurred. If you've found oil all over the engine I would try to figure out where it came from. It is likely that an...

Is there any way to get the seats to fold down in a honda civic coupe lx without using the trunk? My trunk is jammed shut.

Unfortunately the lever to lower the seats is located in the trunk on this vehicle. You will need to get the trunk open in order to pull the lever to lower the seat down. If you are unable to get...

My car accelerates slowly when first taking off and jumps when it shifts gears. What could it be?

This may be related to low transmission fluid or potentially a faulty transmission control solenoid. As you may know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a...

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