Audi TT 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

(46)

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

(46)

Brake Master Cylinder Replacement Estimate for Audi TT

Audi TT Brake Master Cylinder Replacement costs $273 on average.

CarServiceEstimateShop/Dealer Price
2002 Audi TTL4-1.8L TurboService typeBrake Master Cylinder ReplacementEstimate$420.07Shop/Dealer Price$527.09 - $793.03
2001 Audi TTL4-1.8L TurboService typeBrake Master Cylinder ReplacementEstimate$410.07Shop/Dealer Price$514.32 - $778.18
2003 Audi TTL4-1.8L TurboService typeBrake Master Cylinder ReplacementEstimate$301.27Shop/Dealer Price$378.32 - $560.58
2004 Audi TTL4-1.8L TurboService typeBrake Master Cylinder ReplacementEstimate$301.27Shop/Dealer Price$378.28 - $560.51
2005 Audi TTL4-1.8L TurboService typeBrake Master Cylinder ReplacementEstimate$301.27Shop/Dealer Price$378.35 - $560.63
2009 Audi TTL4-2.0L TurboService typeBrake Master Cylinder ReplacementEstimate$624.86Shop/Dealer Price$784.37 - $1170.00
2000 Audi TTL4-1.8L TurboService typeBrake Master Cylinder ReplacementEstimate$588.87Shop/Dealer Price$736.33 - $1130.36
2008 Audi TTL4-2.0L TurboService typeBrake Master Cylinder ReplacementEstimate$634.36Shop/Dealer Price$794.66 - $1180.87
Show example Audi TT Brake Master Cylinder Replacement prices

Brake Master Cylinder Replacement Service

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

(46)

Rating Summary
43
1
0
1
1
43
1
0
1
1

Grzegorz

41 years of experience
473 reviews
Grzegorz
41 years of experience
Audi TT L4-1.8L Turbo - Car Battery Replacement - San Francisco, California
Great experience. Would definitely use it again. Gregorz was very friendly, professional and knowledgeable.

Attila

19 years of experience
814 reviews
Attila
19 years of experience
Audi TT L4-1.8L Turbo - Battery - Rahway, New Jersey
Attila’s was excellent. I will recommend him to everyone I know. 10 Stars

Rigoberto

11 years of experience
739 reviews
Rigoberto
11 years of experience
Audi TT L4-1.8L Turbo - Pre-purchase Car Inspection - Roselle, Illinois
This was for a pre-purchase inspection. The man knows his stuff! He called me as soon as he finished and told me what he wrote on the report, and all the issues. He was professional and patient when I asked him to clarify some items. I have no reservations about the quality or accuracy of his inspection. The cost was also very, very reasonable for what I got in the report.

Derrick

11 years of experience
150 reviews
Derrick
11 years of experience
Audi TT L4-1.8L Turbo - Spark Plugs - Oakland, California
Came out to install some start plugs. Quick and easy.

Excellent Rating

(46)

Rating Summary
43
1
0
1
1
43
1
0
1
1
Number of Audi TT services completed
506+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
700+
experts on our platform

Recent articles & questions

How to Install Mud Flaps
Mud flaps provide a splash guard for the water that sprays against car tires. Mud guards can be drilled into the car or installed with screws.
How to Remove a Stuck Cylinder Head Bolt
Head bolts on the cylinder get stuck and must be removed using a breaker bar, applying impact force, or by carefully drilling the bolt out.
Top Automotive News & Stories: September 17-23
Gas car sales must end by 2035 to reach climate goals, Apple and McLaren discuss acquisition, and the first Tesla Model S remote is hacked.

Techstream cannot communicate and "Handshake" with RES ECU for 2015 Toyota Venza w/smart key. Help.

I would first refer to the unit LED Diagnostics and Troubleshooting in the installation instructions because it first has to be determined if there is a problem with the install (wiring issues, connections) or configuration. Also, you want to check...

My jeep started smelling of smoke and the steering wheel locked up.

It is possible that your belt on your power steering has broken and the rubber has melted against the exhaust somehow. This would cause the steering wheel to be very difficult to turn. I would recommend checking your serpentine belt...

I had a wheel bearing replaced, now it seems to be worse 5 days later

I can see two possibilities. Either the bearing was damaged during the replacement, or the diagnosis was wrong and the wheel bearing was not the original problem. If the wheel bearing was damaged during replacement, then he is obligated to...

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