122-S5Z2N-07

Service
Technical Information
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Complaint - Oil Leak On Turbocharger: Reworking Turbocharger (59/18)
Model Line:
911 Carrera (991)
Model Year:
As of 2017
Subject:
Turbocharger
Information:
If the customer complains about an oil leak on the turbocharger, always note the following
information before doing any other work.
 The turbocharger does not necessarily have to be replaced.
1
Clean oil stains using a suitable cleaning agent ("solvent naphtha" or similar product – commercially
available) and a clean cloth.
2
Spray the affected areas with a suitable leak-locating spray to find the exact location of the leak.
3
Perform a test drive.
Information
After the test drive, check the affected areas on the turbocharger and find exactly where the oil
leak is coming from:
•
If oil is leaking from around the connections of a vent line, oil feed line or oil return line,
•
only the turbocharger on bank 2 is affected,
•
there is no loss of engine power or
•
the turbocharger shows no signs of damage:
 Correct the leak by replacing the relevant vent line/oil line along with its clips and seals,
see  Workshop Manual '217119 Removing and installing oil feed line for turbocharger',  Workshop
Manual '217319 Removing and installing oil bleeder line on turbocharger' or  Workshop Manual
'217819 Removing and installing oil return line for turbocharger'.
•
If oil is leaking from around the intake manifold on the right-hand side (bank 2),
 Check the seals (O-rings) in the intake manifold and replace them if necessary, see 
Workshop Manual '212419 Removing and installing intake manifold' and
 Check the oil separator for damage and replace it if necessary.
End of action required.
– If there are no signs of an oil leak after the test drive, ask the customer to do the following:
 Perform an "extended test drive" by driving the vehicle over a distance of approx. 600 miles
(1,000 km) if possible and then check again for an oil leak (as described earlier in steps 1 to 3).
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Jun 27, 2018
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Tools:
ENU
Technical Information
59/18
– Clean cloth
– Cleaning agent (commercially available)
– Leak-locating spray ("Spotcheck" or similar product – commercially available)
References:
 Workshop Manual '217119 Removing and installing oil feed line for turbocharger'
 Workshop Manual '217319 Removing and installing oil bleeder line on turbocharger'
 Workshop Manual '217819 Removing and installing oil return line for turbocharger'
 Workshop Manual '212419 Removing and installing intake manifold'
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.
© 2018 Porsche Cars North America, Inc.
Jun 27, 2018
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