Noise from the turbo
Symptom: Leakage noise from the turbo
 
  
 
 
  
  
   
   
    
     Fault symptoms
    
   
   
    Leakage noise from the turbo
    
    
    
     Conditions
    
   
   
    The following conditions apply for this fault symptom:
    
    
   
   
   
    
     
      
       | • | Noises caused by air leakage can be audible during engine acceleration with a cold engine. 
 
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    Diagnostic procedure
   
   
    
    
   
   
   
    
     
      
       | • | Tighten the exhaust manifold bolts against the cylinder head. 
 Tightening torque: 25 Nm (19 lbf ft)
 
 
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       | • | If there is still leakage, replace the turbocharger gasket and check that the flanges are whole. 
 
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       | • | Do not
        
        adjust the diaphragm unit if noises are detected. 
 
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