AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owner's Guide

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owner's Guide 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 Owner's Guide

Page 31 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-31
 
    
-  Unclip solenoid valve for charge pressure control -1-.
-  Pull connector off EVAP valve -2-.
    
-  Pull connector off throttle unit -1-.
-  Pull connector off charge air sensor -2-.

Page 32 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-32
 
    
Note:  
Watch position of retaining strips -2-.  -  Remove pressure lines -1-.
    
-  Remove tensioner -1- for ribbed belt.
-  Remove toothed belt guards -2- (left and right).
-  Remove

Page 33 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-33
 
    
Note:  
Turn over the engine at the central bolt on the crankshaft.  -  Turn crankshaft to TDC by hand. Marks -A- and -B- must be aligned.
-  Check position of camshafts: larger holes in

Page 34 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-34
 
    
Note:  
The central bolt does not have to be loosened to remove the vibration 
damper.  -  Remove vibration damper on crankshaft.
    
-  Remove idler wheel for ribbed belt -arrows-.
-  R

Page 35 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-35
      
Notes:  
     
Mark the direction of rotation of the toothed belt 
with chalk or felt pen before removing. A used 
belt can break if it rotates in the wrong direction 
when reinstalled.

Page 36 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-36
 
    
-  Unbolt rear left toothed belt guard -arrows-.
-  Detach intake manifold using special tool 3249. 
    
-  Unbolt cylinder head lifting bracket with coolant line -arrows- from 
cylinder

Page 37 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-37
 
    
-  Unbolt water line -1- and pull it towards the rear. 
-  Unbolt bracket -2- from cylinder head.
-  Remove heat sensor -2-. 
    
-  Unbolt turbocharger -1- from exhaust manifold (3 bolt

Page 38 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-38
 
    
Note:   -  Unbolt coolant line at front of cylinder head -arrows-.
-  Unbolt cylinder head cover.
-  Loosen and remove cylinder head bolts in opposite sequence to 
tightening sequence usi

Page 39 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-39
      
Installing  
     
Notes:  
     
Do not allow any oil or coolant to remain in the 
blind holes for the cylinder head bolts in the 
cylinder block. 
     Replace cylinder head bolts.

Page 40 of 99

AUDI A4 1998 B5 / 1.G APB Engine Valve Gear Service Owners Guide 15-40
      
-  Before installing cylinder head in position, turn 
crankshaft and camshafts to TDC of No. 3 
cylinder. 
     
-  Install cylinder head gasket on dowel sleeves. 
The marking "oben" (top