Page 16 of 62
15-15
      
Oil seal on Camshaft Position (CMP) sensor 
(left and right cylinder head)  
     
-  Unbolt Camshaft Position (CMP) sensor.
     
   Tightening torque: 10 Nm (7 ft lb)
     
-  Unbolt shutter wheel for Camshaft Position 
(CMP) sensor and carefully pry out using 
screwdriver. 
     
   Tightening torque: 20 Nm (15 ft lb)
    
-  Screw in bolt from 2085/1 adapter.
    
Do not lubricate sealing lip or outer edge of seal before pressing in.  -  Remove seal using 2085 seal puller and bolt from 2085/1.
-  Clean contact surface and sealing surface.
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        Page 18 of 62
15-16
 
    
Rear sealing flange (left cylinder head)  
The sealing flange and rear oil seal on the left cylinder head must be 
replaced together as follows:  -  Press seal flush using 3241/1 press sleeve and 3241/3 bolt.
-  Unbolt engine coolant expansion tank from bracket.
-  Remove crankshaft ventilation line from cylinder head cover.
-  Unbolt Camshaft Position (CMP) sensor.
   Tightening torque: 10 Nm (7 ft lb)
-  Unbolt shutter wheel for Camshaft Position (CMP) sensor G40 and 
carefully pry out using screwdriver. 
-  Remove cylinder head cover.
    
-  Remove double bearing cap (arrows).
-  Remove seal and sealing flange.
-  Clean running and sealing surfaces as well as contact surface of 
double bearing cap. 
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        Page 30 of 62
15-25
 
    
It is not necessary to re-torque cylinder head bolts again after repairs 
have been completed.  -  Tighten cylinder head bolts in two stages in sequence shown, as 
follows: 
Stage 1: 60 Nm (44 ft lb) Stage 2: additional 1/2 turn (180 ) using rigid wrench (in two 1/4 turns 
(90 ) if necessary). 
    
Sealing contact surfaces between bearing cap and cylinder head.  
-  Carefully apply small amount of sealant D 454 300 A2 at four end 
points of sealing surfaces on cylinder head using small screwdriver. 
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        Page 31 of 62
15-26
      
Tightening torques  
     
Component  
Tightening 
torque  
Bolts   M6   10 Nm (7 ft lb)  
Bolts   M8   20 Nm (15 ft lb)  
Camshaft bearing cap and 
camshaft adjuster  10 Nm (7 ft lb)  
Exhaust manifold to cylinder 
head  25 Nm (18 ft lb)  
Front exhaust pipe to exhaust 
manifold  25 Nm (18 ft lb)  
Heated Oxygen Sensor 
(HO2S)  50 Nm (37 ft lb)  
Spark plugs   25 Nm (18 ft lb)  
Toothed belt sprocket to 
camshaft  55 Nm (41 ft lb)  
Intake manifold to cylinder 
head  10 Nm (7 ft lb)  
Cylinder head cover   10 Nm (7 ft lb)  
Pa
ge 31 of 62 Valve 
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        Page 39 of 62
15-33
      
All models 
     
-  Remove Camshaft Position (CMP) sensor 
housing and shutter wheel. 
     
-  Unbolt shutter wheel for Camshaft Position 
(CMP) sensor -G40- and carefully pry out using 
screwdriver. 
     
   Tightening torque: 20Nm (15 ft lb)
     
-  Remove cylinder head cover.
     
-  Install 3391 camshaft locator bar into camshaft 
locking plates. 
     
-  Loosen both bolts for camshafts and back out 
bolts approx. 5 turns. 
     
-  Remove 3391 camshaft locator bar.
    
-  Remove both camshaft sprockets using T40001 special tool.
-  Using screwdriver, carefully lift out oil lines for camshaft bearing 
lubrication from camshaft bearings. 
   When lifting out oil lines, be careful not to damage positioning clips.
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        Page 47 of 62
15-41
      
Tightening torques  
     
Component  
  
Tightening 
torque  
Bolts   M6   10 Nm (7 ft 
lb)  
  
M8   20 Nm (15 ft 
lb)  
Except for the following:        
Bearing cap to cylinder 
head     10 Nm (7 ft 
lb)  
Camshaft adjuster to cylinder 
head  10 Nm (7 ft 
lb)  
Shutter wheel for Camshaft 
Position (CMP) sensor -G40- to 
camshaft  25 Nm (18 ft 
lb)  
Housing for Camshaft Position 
(CMP) sensor -G40- to cylinder 
head  10 Nm (7 ft 
lb)  
Camshaft gear to 
camshaft     55 Nm (41 ft 
lb)  
Camshaft bearing cap and 
camshaft adjuster  10 Nm (7 ft 
lb)  
Cylinder head cover      10 Nm (7 ft 
lb)  
Pa
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