45-1
 
     
General information on the 
Anti-lock Brake System (ABS) 
     
Information for repair work on ABS
 
     
WARNING! 
     
Brake fluid is poisonous. 
     
It must NEVER be removed by siphoning 
with your mouth. 
     If brake fluid contacts skin or eyes, flush or 
wash adequately to prevent irritation. Get 
medical attention immediately if necessary. 
     Brake fluid must be disposed of properly in 
compliance with environmental regulations. 
     
CAUTION! 
     The anti-lock brake system is basically 
maintenance-free. 
     Specialist knowledge is required for 
performing any work on this system. 
     Failure to observe the instructions presented 
in this Repair Manual may result in damage 
Pa
ge 1 of 8 General information on the Anti-lock Brake S
ystem 
(ABS
)
11/20/2002 htt
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pair&id=AUDI.B5.SU03.45.1 
45-2
      
CAUTION! 
     
Brake fluid must never be brought into 
contact with liquids containing mineral oils 
(e.g. oil, fuel, cleaning agents). Mineral oils 
damage the plugs and seals in the brake 
system. 
     Brake fluid must not be allowed to come into 
contact with paintwork because of its caustic 
effect. 
     Brake fluid is hygroscopic (i.e. it absorbs 
moisture from the surrounding air) and 
should therefore always be stored in airtight 
containers. 
     Always dispose of used brake fluid 
properly. 
     Make sure that brake fluid does not enter the 
electrical harness connectors. 
     During painting operations, the electronic 
control module can be exposed to a max. 
temperature of 95 C (203 F) for only a short 
period, and to a maximum of 85 C (186 F) 
for longer periods (approx. 2 hours). 
Pa
ge 3 of 8 General information on the Anti-lock Brake S
ystem 
(ABS
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.45.1