Mercedes-Benz R350 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 R350 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
2006 Mercedes-Benz R350V6-3.5L	Service typeBrake Master Cylinder Replacement	Estimate$807.96	Shop/Dealer Price$958.03 - $1385.56
2007 Mercedes-Benz R350V6-3.5L	Service typeBrake Master Cylinder Replacement	Estimate$793.54	Shop/Dealer Price$938.67 - $1362.49
2008 Mercedes-Benz R350V6-3.5L	Service typeBrake Master Cylinder Replacement	Estimate$793.54	Shop/Dealer Price$938.74 - $1362.61
2012 Mercedes-Benz R350V6-3.5L	Service typeBrake Master Cylinder Replacement	Estimate$764.35	Shop/Dealer Price$908.89 - $1332.27
2012 Mercedes-Benz R350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$764.35	Shop/Dealer Price$912.50 - $1338.59
2013 Mercedes-Benz R350V6-3.0L Turbo Diesel	Service typeBrake Master Cylinder Replacement	Estimate$788.27	Shop/Dealer Price$939.13 - $1380.71
2009 Mercedes-Benz R350V6-3.5L	Service typeBrake Master Cylinder Replacement	Estimate$764.35	Shop/Dealer Price$908.93 - $1332.34
2010 Mercedes-Benz R350V6-3.5L	Service typeBrake Master Cylinder Replacement	Estimate$764.35	Shop/Dealer Price$908.89 - $1332.27

Show example Mercedes-Benz R350 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

(105)

Rating Summary

94

4

1

1

5

94

4

1

1

5

SEE REVIEWS NEAR ME

Daniel

12 years of experience

252 reviews

Daniel

12 years of experience

by Deanna

Mercedes-Benz R350 V6-3.5L - Idler Pulley - Chicago, Illinois

Great work!

Glenn

20 years of experience

86 reviews

Glenn

20 years of experience

by Caroline

Mercedes-Benz R350 V6-3.5L - Brake Rotor/Disc Replacement (Front) - Arlington, Virginia

Repeat customer due to high satisfaction. Great value and service.

Chris

16 years of experience

112 reviews

Chris

16 years of experience

by Tomeka

Mercedes-Benz R350 V6-3.5L - Air Suspension Air Compressor - Zephyrhills, Florida

Very knowledgeable, skilled, personable. Will use him every time we need a service with our car.

Adam

18 years of experience

263 reviews

Adam

18 years of experience

by Marshall

Mercedes-Benz R350 V6-3.5L - Brake System Flush - Boca Raton, Florida

Job was done properly, professionally, and on time. Will use them again.

Excellent Rating

(105)

Rating Summary

94

4

1

1

5

94

4

1

1

5

SEE REVIEWS NEAR ME

Recent articles & questions

How to Replace a Differential Output Seal

Differential output seals prevent fluid from leaking out of the differential, causing the differential to overheat and cause damage to your car.

How to Tell the Difference Between LSD and ULSD Fuel

Low Low sulfur diesel (LSD) was replaced with ultra-low sulfur diesel (ULSD) in 2006 as part of an initiative to substantially lower the emissions of particulate matter in diesel (https://www.yourmechanic.com/article/5-essential-things-to-know-about-owning-a-diesel-car) engines. The initiative began in the European Union and later...

2012 Ford Mustang vs. 2012 Dodge Charger: Which One Should I Buy?

Technically these two vehicles have wildly different classifications: compact for the Ford Mustang and large car for the Dodge Charger. However, who would consider either one anything other than a muscle car? These cars are meant for speed, fun, and...

Engine making weird noises.

Seeking a mechanics advice when car issues come up is always a good idea. Especially when it comes to engine noises. Since I don't know what kind of noise you are hearing, I will try to explain what is important...

Clicking sound upon startup

Hi there. I have come across this many times on this engine. If the clicking noise comes up when the vehicle is first started, then check the engine oil first and replace it if it is old. I have also...

Loss of power, rough idle, and engine misfires.

Hi there. There are several electrical and ignition components on a 2007 Mini Cooper that could cause the symptoms you're describing. The ignition coil (https://www.yourmechanic.com/services/ignition-coil-replacement) would be the first item I'd inspect, but before I touched any part, I'd complete...

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