No. 194-21

Service
Technical Information
194/21 ENU
3901
3
Oil Leak on Front-Axle Final Drive (194/21)
Vehicle Type:
Panamera 4 (971)/Panamera 4S (971)/Panamera Turbo (971)/Panamera Turbo S
(971)/Panamera GTS (971)
Model Year:
As of 2017
Concerns:
Oil leaks around the front-axle drive
Information:
We have discovered that the leak point usually cannot be clearly identified in the customer complaint "Oil
leak on front-axle drive". As a result, the front-axle final drive will be replaced without authorization.
In most cases, if the complaint "Oil leak on front-axle final drive" is received, this can cause oil to leak from
another leakage point.
Oil migration from the oil-filter housing area or oil that is next to it can occur, for example.
Action required: In the event of a complaint, clean the front-axle final drive or the affected area thoroughly and spray
leak-locating spray or powder on it. Then carry out a test drive and correct the identified leak as
described in the Workshop Manual.
Locate oil leak in front-axle final drive area
Work
Procedure:
Information
•
Oil leaks must be clearly identifiable and reproducible
•
Engine oil and coolant must have reached operating temperature during a test drive
1
Removing front underbody cover.  Workshop Manual '519219 Removing and installing cover for
front underbody cover'
2
Take photos of the complaint for PCSS.
3
Clean the affected area on the front-axle final drive using a suitable cleaning agent.
4
Apply leak-locating spray or powder to possible leakage points.
5
Perform a test drive.
6
Find oil leaks.
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Service
3901
ENU
Technical Information
194/21
7
Take photos of the leak points found for PCSS.
 Example of oil residues on front-axle drive
8
Correct identified leaks as described in the Workshop
Manual.
Example of oil residues on front-axle drive
Invoicing
For documentation and warranty invoicing, enter the working position and PCSS encryption specified
below in the warranty claim:
APOS
Labor operation
39010100
Checking oil for final drive
I No.
PCSS encryption:
Location (FES5)
39010
Final drive
Damage type (SA4)
5043
Oil leak
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.
© 2022 Porsche Cars North America, Inc.
Mar 23, 2022
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