The couplings and air hoses of the supercharging system must be free from oil and grease before assembling. Only in the case of plug-in couplings, the sealing ring and sealing surface must be oiled slightly → Chapter.
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The supercharger air system should not leak
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Renew self-locking nuts.
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To fit the spring clips, use the spring clip pliers -VAS 6499-.
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Fill turbocharger with engine oil at oil supply pipe connection.
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After fitting the exhaust gas turbocharger, allow the engine to idle for 1 minute without accelerating to ensure turbocharger oil supply.