45-44
      
Electronic Stability Program (ESP) 
hydraulic pump, removing and installing
 
     
Special tools and equipment  
     
Sealing plugs from repair kit Part No. 1H0 698 
311A 
     VAG1551 or VAG1552 scan tool
     US1116 brake bleeder 
     
CAUTION! 
     
Part numbers are listed here for reference 
only. Always check with your Parts 
department for the latest information. 
    
Component location  
The ESP hydraulic pump is located on the left side of the engine 
compartment below the hydraulic control unit.  
Removing  
Note:  
Switch off ignition before removal or installation work. If the vehicle is -  Place vehicle on lift.
Pa
ge 4 of 18 Electronic Stabilit
y Pro
gram 
(ESP
) hydraulic unit, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.45.5 
         
        
        45-49
      
Basic Setting
 
     
Display group 2 (002): Actuation of Electronic 
Stability Program (ESP) hydraulic pump -
V156- 
      Actuation of the ESP hydraulic pump -V156- is 
used to bleed the hydraulic system.  
     
-  Connect VAG1551 or VAG1552 Scan Tool 
(ST). 
V.A.G - ON BOARD DIAGNOSTIC 
HELP
1 - Rapid data transfer2 - Blink code output
    
Indicated on display 1)  1) Operating modes 1 and 2 are displayed alternately  
-  Switch ignition on.
-  Press "PRINT" button to switch printer on; indicator lamp in button 
comes on. 
-  Press button -1- to select "Rapid data transfer" operating mode 1.
-  Press buttons -0- and -3- to insert "Brake Electronics" address word 
03. 
- 
Press  button.
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
Pa
ge 11 of 18 Electronic Stabilit
y Pro
gram 
(ESP
) hydraulic unit, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.45.5