Audi 100 Quattro Brake fluid is leaking Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(2,399)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(2,399)

Brake fluid is leaking Inspection Service

How much does a Brake fluid is leaking Inspection cost?

On average, the cost for a Audi 100 Quattro Brake fluid is leaking Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1989 Audi 100 QuattroL5-2.3LService typeBrake fluid is leaking InspectionEstimate$114.99Shop/Dealer Price$132.49 - $145.62
1994 Audi 100 QuattroV6-2.8LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1991 Audi 100 QuattroL5-2.3LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1992 Audi 100 QuattroV6-2.8LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$112.48 - $125.60
1993 Audi 100 QuattroV6-2.8LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$112.55 - $125.72
1990 Audi 100 QuattroL5-2.3LService typeBrake fluid is leaking InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
Show example Audi 100 Quattro Brake fluid is leaking Inspection prices

Your brakes are the most important safety system on your vehicle. It’s all too easy to take them for granted, but if they were to fail even once, the results could be catastrophic. Most automotive brake systems are hydraulic, which means that pressurized fluid is sent through the lines from the master cylinder to the calipers and drums in order to activate the pads/shoes and slow down the car. If your brake fluid is leaking, it’s a sign that there’s something seriously wrong.

How this system works:

Your brake system is both simple and complex. There are a number of parts required to make it work properly, but the underlying concept is not that difficult to understand. Your master cylinder is the heart of the system – it is responsible for both boosting brake performance (via the brake booster onto which the master cylinder mounts), and for holding and sending brake fluid through the system.

In a nutshell, your brake system works like this: You press the brake pedal, which activates the master cylinder. It pushes fluid into the lines and down to the calipers. The fluid pressure forces the calipers to close, squeezing the rotor between the brake pads. This creates drag and friction, slowing down the car.

However, if fluid is leaking from somewhere in the system, it could mean that you’ll have insufficient fluid for proper brake operation.

Common reasons for this to happen:

  • Worn Brake Pads: If you suspect fluid is leaking because the level in the reservoir is low, it might be nothing more than worn pads. As the pads wear, more fluid is held in the system (because the caliper piston remains farther out due to the reduced pad material).

  • Damaged Master Cylinder Reservoir: Over time, the plastic reservoir attached to your master cylinder becomes brittle due to heat exposure. It can eventually crack, allowing brake fluid to seep out and down the back of the engine.

  • Damaged Bleeder Valve: Each caliper has a bleeder. These valves allow mechanics to bleed air out of the lines, but they can become damaged (or can be knocked loose or even left loose after inexpert service).

  • Damaged Brake Line: Your car has both rubber and steel brake lines that carry fluid to and from the master cylinder. Both types are prone to wear and can be punctured. If this occurs, fluid will steadily leak out of the line.

  • Failed Wheel Cylinder: On drum brakes, one of the most likely culprits is the wheel seal. These will fail over time and through normal wear and tear, eventually weeping brake fluid.

  • Failed Piston Seal: The piston in your caliper is activated by fluid, and it’s a moving part, which means a seal is necessary to keep the fluid inside while allowing the piston to move. If the seal is damaged (cracked or punctured), it will leak brake fluid.

What to expect:

A professional mobile mechanic will come to your home or office to inspect your brake system, including the master cylinder, brake lines, drums, calipers and other components. The mechanic will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will inspect all aspects of your vehicle’s brake system, including possibly checking trouble codes in the computer if the ABS light is on (set off by the brake fluid level sensor). The mechanic will trace the leak to its origin, and then advise you on the next step required to repair the problem.

How important is this service?

Without an operational brake system, your car cannot be legally or safely driven. Leaking fluid is cause for concern – if the fluid level drops below a certain level, the brakes will not work. It’s essential to have your brake system inspected during normal maintenance, and to pay close attention to the fluid level in the reservoir. Any leaks should be immediately inspected and repaired. One of our professional mechanics can inspect, diagnose and repair your brake fluid leak.

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

(2,399)

Rating Summary
2,226
85
19
12
57
2,226
85
19
12
57

Mazyar

8 years of experience
474 reviews
Mazyar
8 years of experience
Audi A6 Quattro V6-3.2L - Brake fluid is leaking - Conyers, Georgia
Very professional and quickly was able to inspect my vehicle. He showed me the parts that needed replacement/repair explained where the repairs were needed. Going to schedule and have him complete the repairs. EH

Damian

11 years of experience
465 reviews
Damian
11 years of experience
Audi A6 Quattro V6-3.2L - Oil Change - Silver Spring, Maryland
Experience was great and educational.

Bryant

12 years of experience
605 reviews
Bryant
12 years of experience
Audi A4 Quattro V6-3.0L - Radiator Hose - Indianapolis, Indiana
Good with communication and was quick/ efficient

Sidney

14 years of experience
121 reviews
Sidney
14 years of experience
Audi A4 Quattro L4-1.8L Turbo - Pre-purchase Car Inspection - Denver, Colorado
quick and thorough

Excellent Rating

(2,399)

Rating Summary
2,226
85
19
12
57
2,226
85
19
12
57
Number of Audi services completed
26389+
services done by our mechanics
TOTAL NUMBER OF EXPERT Audi MECHANICS
700+
experts on our platform

Recent articles & questions

How to Make an Offer on a Vehicle
Buying a vehicle can be intimidating, especially if it is your first time (https://www.yourmechanic.com/article/how-to-find-your-first-car-by-cheryl-knight) to do so on your own. It’s not something you do every day, but it is a skill that will come in handy in the future....
How to Prepare for the Washington Driver’s Written Test
If If you are going to be getting your license in the near future, you will first have to take and pass the Washington driver’s written test. This test is used to ascertain whether you have the knowledge of the...
P2607 OBD-II Trouble Code: Intake Air Heater 'B' Circulation Low
P2607 P2607 code definition The P2607 trouble code is a generic powertrain code related to computer circuit output issues. Your vehicle’s engine control module (ECM) is receiving a notification that the second intake air heater (heater B or 2) is...

Do all cars have an OBD system?

Virtually all vehicles from the 1987 model year to the present day have an OBD system (https://www.yourmechanic.com/article/what-is-the-on-board-diagnostics-obd-system). Some earlier model year vehicles, but not all, have some semblance of an OBD system. However, their diagnostic abilities are severely limited. There...

Car turns on and off. The brake and the steering wheel gets harder.

Hello, thanks for writing in. The P0171 is an indication of a lean mixture, which can be caused by an air leak in the intake (as you were advised), a borderline engine temp sensor reporting a warmer engine temperature than...

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 (844) 997-3624 · hi@yourmechanic.com