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| Unscrew all the fixing nuts of the exhaust manifold -arrows- and remove the bracket -1- from the stud bolts. |
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| Remove exhaust manifold with turbocharger from cylinder head. |
Caution In case a mechanical damage to the exhaust gas turbocharger is found, e.g. damage to the compressor wheel, it is not sufficient to only replace the turbocharger. In order to avoid consequential damage, perform the following tasks: |
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| Change the engine oil and replace the oil filter |
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| Inspect the air filter housing, the air filter element and the intake hoses for contaminations. |
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| Inspect the whole charge-air routing and the charge air cooler for foreign bodies. |
If foreign bodies are detected in the charge air system, the complete charge-air routing must be cleaned and if necessary the charge air cooler must also be replaced. |
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Installation is performed in the reverse order, pay attention to the following points: |
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| Gaskets, gasket rings and self-locking nuts must be replaced. |
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| Coat the stud bolts at the cylinder head with hot bolt paste -G 052 112 A3- before installing. |
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| Fill the exhaust turbocharger with engine oil at the connection fitting for the oil feed line. |
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| After installing the turbocharger, run engine at idling speed for about 1 minute to ensure that oil is supplied to the turbocharger. |
Exhaust gas turbocharger - tightening torque and tightening order |
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