01-85
 
Function test and check for proper seal  
Test step  
VAG  
1598/20 
sockets  Test of  
Test requirements 
- Additional work 
steps Specified value  
Corrective action  
17  
  
Continuation:    
 
Right rear 
ABS 
outlet 
valve -
N135- - Bridge terminals 4 + 
28 
- Switch on ignition for 
max. 10 seconds and 
switch off again. 
Front Wheel Drive 
(FWD):  
170   25 bar  
All-Wheel Drive 
(AWD), pressure 
regulation (ABS):  
90 25 bar  
Left front 
traction control 
outlet valve -
N169- switchedPressure 
increases on 
pressure 
gauge: 
- Pressure relief valve and/or left 
front ABS outlet valve -N102- 
and/or right rear ABS outlet valve 
-N135- malfunctioning. Replace 
ABS hydraulic unit -N55-. 
        
- Remove VAG1310A 
pressure gauge and 
bleed brakes All Wheel Drive 
(AWD), throttle 
valve regulation:  
170   25 bar  
  
Pa
ge 37 of 79 Read Measurin
g Value Block 
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8 
         
        
        01-87
 
Function test and check for proper seal  
Test step  
VAG  
1598/20 
sockets  Test of  
Test requirements 
- Additional work 
steps Specified value  
Corrective action  
18  
  
Continuation:    
 
Left rear 
ABS 
outlet 
valve -
N136- - Bridge terminals 27 
+ 28 
- Switch on ignition for 
max. 10 seconds and 
switch off again. 
Front Wheel Drive 
(FWD):  
170   25 bar  
All-Wheel Drive 
(AWD), pressure 
regulation (ABS):  
90 25 bar  
Right front 
traction control 
outlet valve -
N167- switchedPressure 
increases on 
pressure 
gauge: 
- Pressure relief valve and/or right 
front ABS outlet valve -N100- 
and/or left rear ABS outlet valve -
N136- malfunctioning. Replace 
ABS hydraulic unit -N55-. 
        
- Remove VAG1310A 
pressure gauge and 
bleed brakes All Wheel Drive 
(AWD), throttle 
valve regulation:  
170   25 bar  
  
Pa
ge 41 of 79 Read Measurin
g Value Block 
(function 08
)
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU02.01.8