motor surroundings


general instructions

After a turbocharger fault, check whether the motor feed system is actually oil-free :
  • In this occurrence, remove the parts and the grease, clean them, then dry them.

Check that the oil return duct of the turbocharger is not partially or fully obstructed by carbon deposits. Also check its thorough sealing.

Check, when re-assembling, that no foreign item does enter the exhaust manifold nor the turbocharger.

Apply high temperature paste on the screws/nuts on the area of the exhaust manifold / turbocharger.


Disconnect the negative battery terminal.

Remove :
  • The motor upper cover.
  • The motor's lower protecting cover (if pertinent).
  • The drive belt.
  • The air intake duct 1.
  • The air duct 2 filter/turbocharger.
  • The air output duct 3 from the turbocharger.
  • The heat shield 5.
Protect :
  • The engine coolant radiator.

catalyst removal

Remove :
  • 2 temperature sensor 6 (tightening torque 30 N.m).
  • The clamps 9 (tightening torque 25 N.m).
  • The lower torque rod.
  • The clamp 7.
Put aside :
  • The reductant nozzle 8 (without disconnecting the hoses).
Remove :
  • The nuts 10 (tightening torque 25 N.m).
  • The catalyst.

component removal

Disconnect :
  • The vacuum pipe A.
  • The connector B.
Remove :
  • The banjo bolt V1.
  • The banjo bolt V2 (tightening torque 30 N.m).
  • The oil feed hose C from the turbocharger.
  • The oil-return hose D.
  • The nuts E (tightening torque 26 N.m).
  • The turbocharger.

Check that the mating surfaces are clean and free from foreign items.

To be systematically replaced :
  • The o'rings.
  • The clamps.

Use new self-locking screws / locknuts E.



Place back the components in reverse order of the removal.

Befor to start the engine :
  • Disconnect the terminal(s) of the injectors.
  • Run the starter until the oil pressure light switches off (keep going for some seconds).

Start the engine and keep it it idle running.

Check there are no leaks.

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