skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

Engine with identification characters BLS > < Removing and installing exhaust gas turbocharger (Octavia II)
Engine with identification characters BJB, BKC, BXE
Engine with identification characters BJB, BKC, BXE
Special tools and workshop equipment required
t  Pliers for spring strap clamps
  Caution
In case of mechanical damage to the exhaust gas turbocharger, e.g. damage of the compressor wheel, it is not sufficient to only replace the exhaust gas turbocharger. In order to prevent consequential damage to the engine, perform the following tasks:
t  Check air filter, air filter insert and charge air hoses as well as charge air pipes for soiling.
t  Check all the air guides and the charge air cooler for foreign bodies.
If soiling or foreign bodies are detected in the filling system, all air guides must be carefully cleaned and if necessary replace the charge air cooler.
Removing
   
–  Lift the engine cover at the sides -arrows 1- and pull out towards the front -arrow 2-.
  S10-0209
–  Disconnect vacuum hose -3- from mechanical exhaust gas recirculation valve and hose to vacuum setting element of charge pressure control. Expose vacuum hoses -arrow-.
–  Disconnect pipe to crankcase ventilation -4- at air guide pipe.
–  Release spring strap clips -1- at exhaust turbocharger.
–  Release screws -2- and -5- and remove air guide pipe.
–  Remove the middle sound dampening system → Body Work; Rep. Gr.50.
–  Unscrew the drive shaft to the right of the gearbox flange → Chassis; Rep. Gr.40.
–  Remove pre-exhaust pipe → Chapter.
  S10-0303
–  Remove air guide hose from exhaust turbocharger, to do so pull retaining clip -arrow-.
  S21-0075
–  Release screws -1- and -2- and remove bracket for turbocharger.
–  Remove the oil return line -3- at the cylinder block.
  S21-0076
–  Unscrew oil feed line at exhaust turbocharger and at exhaust manifold -arrows- and lay it to one side.
–  Remove connection pipe for exhaust gas recirculation.
–  Remove heat shield from exhaust manifold.
  S21-0077
–  Unscrew nuts -arrows- and remove exhaust manifold with exhaust turbocharger downwards.
Install
Installation is performed in a similar way in the reverse order. Pay attention to the following points:
  Note
t  Replace the gaskets, the sealing rings and the self-locking nuts.
t  Fill exhaust turbocharger with engine oil through the connection fitting of the oil feed line.
t  Hose connections and hoses of the charge air system must be free of oil and grease before being installed.
t  Secure all hose connections with corresponding hose clips.
–  Install exhaust system and align free of stress → Chapter.
–  Observe the assembly instruction for hose connections with push-fit couplings → Chapter.
–  Checking the oil level → Octavia II.
  Note
after installing the exhaust turbocharger run the engine approx. 1 minute in idle and do not increase speed immediately in order to ensure the supply of oil to the turbocharger.
  S21-0078

Engine with identification characters BLS > < Removing and installing exhaust gas turbocharger (Octavia II)