Mercedes-Benz S550 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

(189)

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.

Customer Ratings

(189)

Brake Master Cylinder Replacement Service

How much does a Brake Master Cylinder Replacement cost?

On average, the cost for a Mercedes-Benz S550 Brake Master Cylinder Replacement is $388 with $274 for parts and $114 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2007 Mercedes-Benz S550V8-5.5LService typeBrake Master Cylinder ReplacementEstimate$685.85Shop/Dealer Price$843.82 - $1270.46
2012 Mercedes-Benz S550V8-4.7L TurboService typeBrake Master Cylinder ReplacementEstimate$752.87Shop/Dealer Price$924.61 - $1412.79
2010 Mercedes-Benz S550V8-5.5LService typeBrake Master Cylinder ReplacementEstimate$710.99Shop/Dealer Price$881.27 - $1344.80
2011 Mercedes-Benz S550V8-5.5LService typeBrake Master Cylinder ReplacementEstimate$710.99Shop/Dealer Price$881.23 - $1344.72
2008 Mercedes-Benz S550V8-5.5LService typeBrake Master Cylinder ReplacementEstimate$661.85Shop/Dealer Price$819.88 - $1246.58
2016 Mercedes-Benz S550V8-4.7L TurboService typeBrake Master Cylinder ReplacementEstimate$3016.29Shop/Dealer Price$3753.88 - $5939.62
2013 Mercedes-Benz S550V8-4.7L TurboService typeBrake Master Cylinder ReplacementEstimate$758.87Shop/Dealer Price$930.45 - $1418.50
2015 Mercedes-Benz S550V8-4.7L TurboService typeBrake Master Cylinder ReplacementEstimate$3022.29Shop/Dealer Price$3760.17 - $5946.12
Show example Mercedes-Benz S550 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

(189)

Rating Summary
171
7
1
2
8
171
7
1
2
8

Robert

12 years of experience
125 reviews
Robert
12 years of experience
Mercedes-Benz S550 V8-5.5L - Car AC Repair - Germantown, Maryland
Performs a great job!

Fred

17 years of experience
389 reviews
Fred
17 years of experience
Mercedes-Benz S550 V8-5.5L - Brakes, Steering and Suspension Inspection - Cypress, Texas
good

Vaughan

11 years of experience
92 reviews
Vaughan
11 years of experience
Mercedes-Benz S550 V8-5.5L - Spark Plugs - Desoto, Texas
Vaughan is very knowledgeable about my car. My wife was the one at home during the appointment, he called me to give me updates as he was working on the car. I would recommend Vaughan to my friends and family.

Rodric

14 years of experience
414 reviews
Rodric
14 years of experience
Mercedes-Benz S550 V8-5.5L - Brake Pads Replacement (Front, Rear) - Atlanta, Georgia
Arrived on time. Very knowledgeable and willing to help

Excellent Rating

(189)

Rating Summary
171
7
1
2
8
171
7
1
2
8
Number of Mercedes-Benz S550 services completed
2079+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

A Buyer’s Guide to the 2012 Land Rover LR2
It It may not be the most well-known, flashiest Land Rover but the LR2 holds its own as a capable, attractive, AWD rugged SUV with the signature boxy British look and interior that bathes you in luxury. As the most...
How to Prepare for the Hawaii Driver’s Written Test
Few Few places in the world are as beautiful as Hawaii, and it is understandable that you want to get your license so you can go out there and enjoy all of them in your vehicle. Of course, before you...
P0593 OBD-II Trouble Code: Cruise Control Multi-Function Input “B” Circuit High
P0593 means an error with the cruise control multi-function input B circuit, often caused by a interior spill that damages the cruise control switch.

Tires making whining noise.

The tread wall of the tires need to be checked for abnormal wear. Inspect the tires to ensure no steel chords are exposed on the tire. Run your hand across the inner and outer edges of each tire to see...

I have to hold the turn signal lever down

It sounds like the turn signal lever assembly needs to be replaced. The mechanism for holding the lever and returning it are inside of it may not serviceable, however, a certified technician should be able to inspect your turn signal...

Cruise control has not been working for a while.

Hi there. First check to see if the cruise control fuse is blown. Then check the brake light switch (https://www.yourmechanic.com/services/brake-light-switch-replacement), the brake pressure switch, the speed sensor on the transmission (https://www.yourmechanic.com/services/speed-sensor-replacement), or the cruise control buttons. Most of the time...

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