Turbocharger Leaking Fluids Externally

Condition	Action
Leaking Coolant from Coolant interfaces; Feed and/or Return Pipe	Inspect Seal Surfaces on Bearing Housing, Pipes and Banjo Bolt If Turbo Seal Surface is damaged replace turbo If Pipe Seal Surface is damaged replace Pipe If Banjo Bolt Seal Surface is damaged replace Banjo Bolt Reassemble with new seals in all cases
Leaking Coolant from area other than Coolant interfaces; NOT Feed and/or Return Pipe	Replace component that is leaking
Leaking Oil from Oil interfaces; Feed and/or Return Pipe	Inspect Seal Surfaces on Bearing Housing, Pipes and Bolts If Turbo Seal Surface is damaged replace turbo If Pipe Seal Surface is damaged replace Pipe If Bolt Seal Surface is damaged replace Bolt Reassemble with new seals in all cases
Oil on Compressor Cover	Check for correct PCV System functionality, refer to Crankcase Ventilation System Inspection/Diagnosis (LKW) and Crankcase Ventilation System Inspection/Diagnosis (LTG) Check Turbocharger Oil Drain Pipe for restriction Check PCV connection in Compressor Housing, inspect O-ring Check Fresh Air Duct connection at Compressor inlet, look for damage and replace if necessary Check Compressor Outlet connection, look for damage and replace if necessary
All Other External Turbocharger Leaks	Replace Turbocharger