PDK Transmission - Leak Around The ATF Oil Pan
335/11 ENU 3734
Service
Dec 14, 2011
The present document was valid at the time of print. A later version may be available online
PDK Transmission: Leak Around The ATF Oil Pan (35/11)
Model year:
as of 2009 up to 2011
Information
This bulletin replaces bulletin STB Group 3 35/11, dated April 26, 2011.
Vehicle Type:
Boxster (987)/Boxster S (987)
Cayman/Cayman S
911 Carrera (997)1911 Carrera 5 (997)
911 Turbo (997)1911 Turbo 5 (997)
Equipment:
Porsche Doppelkupplung (PDK) - I-no. 250
Concerns:
PDK transmission
Information:
Incorrect repair measures in the event of a leak on the PDK transmission
We have discovered that the ATF oil pan on PDK transmissions is being replaced when customers complain of a leak around the ATF oil pan.
The ATF oil pans that were returned to us were examined by the manufacturer and found to be OK.
Action Required:
If customers complain of a leak on the PDK transmission, the cause of the leak must be determined using the following procedure before carrying out any repairs. This procedure applies until further notice.
Affected Vehicles:
All vehicles produced from September 1, 2009.
Tools:
Commercially available leak detecting spray, commercially available brake cleaner, clean cloth
Work Procedure:
To determine the cause of the leak, the following procedure involves cleaning the PDK transmission, test-driving the vehicle and then performing a visual inspection.
1 Check all possible leakage points (cover stoppers, etc.) for traces of leaking oil, see also 373000 PDK --> transmission: Repair measures in the event of various symptoms (35/09)
Are there signs of an oil leak around the ATF oil pan?
If there are: --> Step 2
If not: --> Proceed as described in Technical Information 35/09, 373000 PDK transmission: Repair measures in the event of various symptoms (35/09)
2 Document the nature of the oil leak (source of the leak, oil dripping, drops of oil forming, etc.) for PQIS using digital photos.
3 Clean the transmission:
Carefully clean the gap between the transmission housing and ATF oil pan with brake cleaner and a clean cloth and then blow out the gap with compressed air.
4 Spray the gap and all possible leakage points with leak detecting spray.
5 Perform a test drive until the engine oil and coolant are at least at operating temperature.
Then perform a visual inspection of the transmission and document any possible sources of leaks that you find with digital photos for PQIS.
Are there still signs of an oil leak around the ATF oil pan seal?
If there are: --> Please file a TLAR and you will be informed of what to do next.
If not: --> Proceed as described in Technical Information 35/09, 373000 PDK transmission: Repair measures in the event of various symptoms (35/09)
References:
--> 373000 PDK transmission: Repak measures in the event of various symptoms (35/09)
References:
--> 373000 PDK transmission: Repak measures in the event of various symptoms (35/09)
--> 370235 Checking and topping up ATF
--> 370255 Changing ATF
--> 37551900 Removing and installing ATF pan
References:
--> 373000 PDK transmission: Repak measures in the event of various symptoms (35/09)
-->370235 Checking and topping up ATF
--> 370255 Changing ATF
--> 37551900 Removing and installing ATF pan
987110, 987111, 987120, 987121, 987130, 987141, 987161, 987180, 987181, 987310, 987311, 987320, 987321, 987330, 987340, 987350, 987361, 987371, 987381, 987720, 987721, 987741, 987760, 987761, 987781, 997110, 997111, 997120, 997121, 997140, 997141, 997150, 997151, 997160, 997161, 997170, 997310, 997311, 997320, 997321, 997350, 997351, 997360, 997361, 997370, 997410, 997411, 997420, 997421, 997430, 997431, 997450, 997451, 997460, 997461, 997470, 997471, 997510, 997511, 997520, 997521, 997560, 997561, 997610, 997611,
997620, 997621, 997630, 997631, 997650, 997651, 997660, 997661, 997670, 997671, 997720, 997721, 997810, 997811, 997830, 997840, 997841, 997850, 997851, 997860, 997861
Model year as of 2009, Model year up to 2011 C02, C36