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Home >> Audi >> 2021 >> S4 Premium Plus >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger, Supercharger Servicing - 3.0L >> 21 Turbocharger, Supercharger >> Turbocharger >> Turbocharger, Removing And Installing >> Turbocharger, Removing And Installing, 3.0L Engine >> If Mechanical Damage (For Example A Destroyed Compression Wheel) Is Found On The Turbocharge

If Mechanical Damage (For Example A Destroyed Compression Wheel) Is Found On The Turbocharge

CAUTION: If mechanical damage (for example a destroyed compression wheel) is found on the turbocharger, just replacing the turbocharger is not enough. To avoid subsequent damage later, perform the following steps:
  • Check the air filter housing, air filter element and air duct hoses for contamination.
  • Check the entire charge air circuit and charge air cooler for foreign objects.
  • If there are foreign objects in the charge air system, clean the charge air circuit and replace the charge air cooler if necessary.
  • If bearing damage is apparent on the removed turbocharger, change the engine oil and filter.
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