Brake Fluid Change FAQ
Intended Car: '02 GTI 1.8t w/ 5spd
1) Recommended Brake Fluid Change Interval
-- Every two years regardless of mileage
1.1) Why should you change your brake fluid?
--Brake fluid absorbs water over time. Water mixed into the brake fluid lowers the boiling point (if the brake fluid boils, it changes from an incompressible liquid to a compressible gas, resulting in loss of brakes) and can accelerate corrosion of brake system components.
2) Brake Fluid Spec
-- DOT4 (Typically labeled DOT3 and DOT4)
-- DOT4 meets both DOT3 and DOT4
-- Do NOT use DOT5 (silicone based)
2.1) What type of brake fluid?
-- OEM Fluid
-- Valvoline Synthetic
-- Castrol LMA
---- Do NOT use Super Blue Brake fluid on a manual transmission. The clutch pulls fluid from the same resevoir and on VW/Audi Clutches. The clutch master cylinder will start squeaking in several months.
2.2) Volume of Brake Fluid
-- 1/4 quart at minimum, 2 quarts to be safe on a full flush
3) Necessary Tools
-- Power Bleeder such as this
or Motiv Power Bleeder
-- Clear Tubing | ID: ??mm/??" x ??cm/??" length
-- Empty Container at least ??L/??qt
-- 11mm Open Ended Wrench
-Jack and Jackstands
-Wheel chocks (or a set of 2x4’s)
-Small blade screwdriver
-OEM VW lug remover
-17 mm socket
-10 mm socket
-10 mm open end wrench
-Brake fluid bleeder (or a rubber hose and a throw-away bottle)
-Torque wrench: range 11-125 Nm
4) Brake Fluid Change Procedure
-- Note: Be sure not to lose seals
-- Note: Leftover brake fluid should be tightly capped; it should not be used to top off a car that was given new brake fluid more recently than when the container was opened.
-- Note: Brake fluid is poisonous and can damage car paint.
--Alternate Procedure@Ottawa Vdubbing
--Excellent Video Tutorial
--Tutorial by same person who made the video tutorial
5) Best Place to Purchase
-- Super Blue ATE $12/L
-- No Spill Bleeder Bottle $18
-- Motive Power Bleeder $60
-- Power Bleeder @ Parts4vws $45
-- ECS Tuning : Power Bleeder $50
-- Vaccuum Bleeder @ Tooldesk $53.50 + Fluid Evacuator Accessory $23.95
6) Common Upgrades
-- Stainless Steel Lines
Modified by groggory at 9:42 PM 11-5-2005