AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual A4 1998 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/969/w960_969-0.png AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual

Page 61 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-61
 
    
-  Unplug connector -1- from air mass meter. 
-  Unplug connectors -2- from ignition output stages, and move wiring 
clear. 
-  Remove air cleaner.
    
-  Remover cover panel from right-

Page 62 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-62
 
    
Note:  
Plug lower section of pressure line.  - Disconnect hose -1-. 
- Disconnect hose -2-. 
-  Detach upper section of pressure line -3-.
Pa
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gear, servicin
g
11/21/20

Page 63 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-63
      
-  Pull crankcase breathers off cylinder head 
covers. 
     
-  Pull plug connectors off ignition coils.
     
-  Remove ignition coils.
     
-  Unplug connectors from all 6 injectors.

Page 64 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-64
      
Installing  
      Install in reverse sequence; note the following 
points.   
     
-  install fuse No. 28 (for fuel pump).
     
-  Erase Diagnostic Trouble Code (DTC) 
memory. 
     
N

Page 65 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-65
      
Sealing cap (core plug) in cylinder head, 
installing
 
      The cylinder head supplied as a replacement 
part can be used on both sides (left or right). But 
a sealing cap (core plug) m

Page 66 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-66
      
Camshaft adjustment, checking function
 
     
Special tools and equipment  
    
Test requirement: 
WARNING! 
VAS 5051 with VAG 5051/1
   orVAG 1551 with VAG 1551/3ACoolant Temperature a

Page 67 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-67
      
Test sequence  
     
-  Connect VAS 5051 tester or VAG 1551 scan 
tool and select control module for engine 
electronics using "address word" 01. Engine 
must run at idle for this.

Page 68 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-68
 
  
Display fields  
  
1   2   3   4  
Display group 94: Function of camshaft adjustment  
Display   1 RPM   Text   Text   Text  
Indicated   Engine speed (RPM)   Camshaft adjustment   Test re

Page 69 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-69
 
  
Solenoid valve for camshaft adjustment, 
checking
 
Special tools and equipment  
 
VAG 1526A
 VAG 1527B
 VAG 1594A
 VAG 1598/31
 VAS 5051
- or 
 VAG 1551 with VAG 1551/3A
Pa
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Page 70 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Repair Manual 15-70
      
-  Initiate output Diagnostic Test Mode (DTM) and 
activate the valve for camshaft adjustment. 
     
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Injection & Ignition, Engine Code