NHTSA ID Number: 10177958
Manufacturer Communication Number: No. 43-10
TSB/Document Date: 2020-08-05
Summary
Various repair symptoms and their associated repairs for all PDK transmissions.
Housing screw(s) loose
Replace PDK transmission
Workshop Manual
'373455 Replacing Porsche
Doppelkupplung (PDK)'.
4
Leak between
distributor housing
and transmission
housing Figure 1
-item 4-
Seal damaged
The exact site of the leak
must be located.
It is important to be sure
that the leak is actually
between the distributor
housing and transmission
housing and that the
transmission fluid that
is found is not coming
from leaks on other
components (e.g. on the
connecting shaft).
5
Leak in the output
shaft/output flange
area Figure 1 -item 5-
Radial shaft seal for output
shaft damaged
AfterSales
Replace radial shaft seal (Part
No. 970.321.807.xx)
Workshop Manual '387055
Replacing sealing ring for output
shaft'.
Jul 24, 2020
Page 7 of 18
3
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6
Technical Information
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Leak between
transmission housing
and clutch bell-housing
Figure 1 -item 6-
Housing screw(s) loose
Seal damaged
Replace PDK transmission
Workshop Manual
'373455 Replacing Porsche
Doppelkupplung (PDK)'.
The exact site of the leak
must be located.
It is important to be
sure that the leak is
actually between the
transmission housing
and clutch bell-housing
and that the transmission
fluid that is found is not
coming from leaks on
other components.
7
8
9
Leak around the bearing
pins Figure 1 -item 7-
Bearing pins loose
Seal on bearing pins
damaged
Leak around the
threaded joint on the
half shell for reverse
gear Figure 1 -item 8-
Threaded joint loose
Leak around the screw
plug Figure 1 -item 9-
Screw plug loose
Seal damaged
Seal damaged
Figure 1
Jul 24, 2020
Page 8 of 18
AfterSales
Replace PDK transmission
Workshop Manual
'373455 Replacing Porsche
Doppelkupplung (PDK)'.
Replace PDK transmission
Workshop Manual
'373455 Replacing Porsche
Doppelkupplung (PDK)'.
Replace screw plug (Part No.
970.321.871.xx).
Tightening torque 10 Nm
(7.5ftlb.) +/-0.5 Nm
(+/-0.5ftlb.)
Service
Technical Information
43/10
ENU
3730
3
10
Leak around the selector
shaft/parking lock
Figure 2 -item 10-
Radial shaft seal for
selector shaft damaged
Replace radial shaft seal (Part
No. 970.324.805.xx)
Workshop Manual '373355
Replacing sealing ring for
selector shaft'.
11
Leak between oil pan
and transmission
housing Figure 2
-item 11-
Replace complete oil pan
(Part No. 970.321.025.xx)
Workshop Manual '375519
Removing and installing ATF pan'.
If aluminium screws are used
to secure the oil pan to the
transmission housing, replace
these with steel screws (Part No.
970.321.809.xx).
Figure 2
12
Oil leak from the bleeder
Figure 3 -item 12-
Oil over-filled
Check the transmission oil
level and top up if necessary
Workshop Manual '370235
Checking and topping up ATF'.
Insufficient defoamer in
transmission fluid
Change transmission fluid
Workshop Manual '370255
Changing ATF'
Instructions on container
(shake) not followed when
changing fluid
Bleeder defective
AfterSales
Replace bleeder (Part No.
970.321.205.xx) and bleeder
cap (Part No. 9G1.321.215.xx).
Jul 24, 2020
Page 9 of 18
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Figure 3
13
14
15
Leak around the screw
plug Figure 4 -item
13-
Leak around the screw
plugs Figure 4 -item
14Leak around the oil pan
Figure 4 -item 15-
Screw loose
Seal damaged
Screw loose
Seal damaged
Oil pan screws loose
Oil pan seal damaged
Replace screw plug (Part No.
970.321.871.xx).
Tightening torque 10 Nm
(7.5ftlb.) +/-0.5 Nm
(+/-0.5ftlb.)
Replace screw plug(s) (Part No.
970.321.813.xx).
Replace complete oil pan
(Part No. 970.321.025.xx)
Workshop Manual '375519
Removing and installing ATF pan'
If aluminium screws are used
to secure the oil pan to the
transmission housing, replace
these with steel screws (Part No.
970.321.809.xx).
All-wheel drive vehicles
only:
Traces/drops of oil
around the oil pan
O-ring on the connecting
shaft may be damaged
Perform a visual inspection to
see if the traces/drops of oil are
caused by a damaged O-ring on
the connecting shaft.
If they are: Replace O-ring
on connecting shaft (Part
No. 999.701.640.xx). For
instructions on removing and
installing the connecting shaft,
see Workshop Manual
'373419 Removing and installing
Porsche Doppelkupplung (PDK)'
Jul 24, 2020
Page 10 of 18
AfterSales
Service
Technical Information
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ENU
3730
3
If not: Replace the complete oil
pan (Part No. 970.321.025.xx)
Workshop Manual '375519
Removing and installing ATF pan'
If aluminium screws are used
to secure the oil pan to the
transmission housing, replace
these with steel screws (Part No.
970.321.809.xx).
16
Leak around the oil drain
plug Figure 4 -item
16-
Oil drain plug loose
Seal damaged
Replace plug with sealing ring
(Part No. 970.321.825.00)
Tightening torque 15 Nm
(11ftlb.) +3 Nm (+2 ftlb.)
See also Workshop Manual
'370255 Changing ATF'.
Figure 4
17
Leak around the clutch
bell-housing Figure 5
-item 17The exact site of the leak
must be found.
Apparent preservative
grease leak
Check whether the leaking fluid is
preservative grease or oil.
If preservative grease is leaking
out, no further action is required.
Engine leaking
Find and repair leaks on the
engine.
Radial shaft seal on
coupling hub damaged
Replace radial shaft seal (Part
No. 9G1.116.807.xx)
Workshop Manual '386955
Replacing sealing ring for
Porsche Doppelkupplung'
O-ring on clutch cover
damaged
Replace PDK transmission
Workshop Manual
AfterSales
Jul 24, 2020
Page 11 of 18
3
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It is important to be sure
that the leak is actually on
the clutch cover and is not
due to an apparent leak
caused by preservative
grease on the clutch
cover.
18
Leak around the
connectors for the
hydraulic switch unit and
sensor unit Figure 5
-item 18-
O-rings on connectors
damaged
Leak around PDK shaft
seal Figure 5 -item
19-
For instructions, see
Workshop Manual '381819
Removing and installing wire
harness in transmission'.
Radial shaft seal on
coupling hub damaged
Replace radial shaft seal (Part
No. 9G1.116.807.xx)
Workshop Manual '386955
Replacing sealing ring for
Porsche Doppelkupplung'
O-ring on clutch cover
damaged.
Replace PDK transmission
Workshop Manual
'373455 Replacing Porsche
Doppelkupplung (PDK)'.
The exact site of the leak
must be found.
20
Leak around the clutch
cover Figure 5 -item
20The exact site of the leak
must be found.
It is important to be
sure that the leak is
actually on the clutch
cover and is not due to an
apparent leak caused by
preservative grease on
the clutch cover (see 17).
Jul 24, 2020
Page 12 of 18
Outer connector leaking:
Replace wire harness for
hydraulic switch unit (Part No.
970.317.615.xx).
Inner connector leaking:
Replace PDK sensor unit (Part
No. 970.317.085.xx).
– Outer connector: Wire
harness for hydraulic
switch unit
– Inner connector: PDK
sensor unit
19
'373455 Replacing Porsche
Doppelkupplung (PDK)'.
AfterSales
Service
Technical Information
43/10
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TSB/Document ID: No. 43-10
Replacement Service Bulletin Number:
MFR Communication Date: 2020-07-24
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN
MFR Component System:
MFR Component Subsystem:
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