NHTSA ID Number: 10251208
Manufacturer Communication Number: No. 88-20
TSB/Document Date: 2024-03-05
Summary
Technical information for a complaint - oil leaks on double clutch transmission
Internal hexagon round-head bolt with O-ring
– Right halfshaft flange
1 ea.
WHT008676
Hexagon-head bolt
– Right strut
2 ea.
WHT008727
Cheese head bolt
– Drive shaft
6 ea.
9A740735700
Plate
– Drive shaft
3 ea.
Part No.
Designation
– Use
Qty.
0DT323662
Flanged shaft
– Right halfshaft flange
1 ea.
0DT321243
Shaft sealing ring
Right halfshaft flange
1 ea.
PAF009145
Internal hexagon round-head bolt with O-ring
– Right halfshaft flange
1 ea.
WHT008676
Hexagon-head bolt
– Right strut
2 ea.
WHT008727
Cheese head bolt
– Drive shaft
6 ea.
9A740735700
Plate
– Drive shaft
3 ea.
Part No.
Designation
– Use
Qty.
PAF009145
Internal hexagon round-head bolt with O-ring
– Right halfshaft flange
1 ea.
WHT008676
Hexagon-head bolt
– Right strut
2 ea.
Required parts:
Parts Info (7C): Required parts:
AfterSales
Feb 16, 2024
Page 11 of 41
3
Service
3734
Invoicing (7A 7C):
ENU
Technical Information
88/20
WHT008727
Cheese head bolt
– Drive shaft
6 ea.
9A740735700
Plate
– Drive shaft
3 ea.
For documentation and warranty invoicing, enter the labor operations, PQIS coding and relevant part
numbers specified below in the warranty claim:
I No.
APOS
Labor operation
39254150
Repairing halfshaft flange
39225552
Replacing sealing ring for halfshaft flange
Choose PQIS coding based on the cause defined above:
7A – 7C
Fault location (FES5)
39251
Flanged shaft mount, left
Damage category (SA4)
1817
Loose
Leaks in the area (left side of transmission)
Left side of transmission (with ATF cooler)
Feb 16, 2024
Page 12 of 41
AfterSales
Service
Technical Information
Position
Left side
of transmission
(with ATF
cooler) -8-
Left side
of transmission
(with ATF
cooler) -9-
88/20
ENU
3734
3
Oil leak
Possible cause(s)
Repair measure
ATF cooler
Screw loose (A)
Replace screw, see Workshop Manual
'377219 Removing and installing
transmission oil cooler'.
Seal damaged (B)
Replace seal, see Workshop Manual
'377219 Removing and installing
transmission oil cooler'.
ATF cooler leaking (C)
Replace ATF cooler, see Workshop
Manual '377219 Removing and installing
transmission oil cooler'.
8A - 8C
If there are oil leaks in the
ATF cooler area, see also
Left side of transmission
(without ATF cooler) -15
- 16-.
Central connector at
the right
9A - 9B
Sealing ring damaged (A)
Replace double clutch transmission, see
Workshop Manual '373419 Removing
Connector leaking (B)
and installing double clutch transmission'.
Shaft sealing ring damaged
Workshop Manual '373419 Removing
Left side
of transmission
(with ATF
cooler) -10-
Replace double clutch transmission, see
Bleeder screw
and installing double clutch transmission'.
Left side
of transmission
(with ATF
cooler) -11-
Sealing ring damaged
Replace sealing ring, see Workshop
Manual '373355 Replacing selector
shaft sealing ring'.
Sealing ring damaged (A)
Replace sealing ring.
12A - 12B
Screw loose (B)
Replace screw and tighten to 3.2
Nm (2.2 ftlb.) and a final tightening
torque angle of 30°.
Left halfshaft flange
Replace bearing, see Workshop
Manual '392555 Replacing left halfshaft
flange bearing'.
Selector shaft
Left side
of transmission
(with ATF
cooler) -12-
rpm sensor
Left side
of transmission
(with ATF
cooler) -13-
Left side
of transmission
(with ATF
cooler) -14-
Sealing ring damaged (A)
Temperature sensor
14A - 14B
Connector leaking (B)
AfterSales
Replace temperature sensor, see
Workshop Manual '377419
Removing and installing transmission
oil temperature sensor'.
Feb 16, 2024
Page 13 of 41
3
Service
3734
Parts Info and
Materials (8A):
ENU
Technical Information
88/20
Parts required (for ATF cooler):
Part No.
Designation
– Use
Qty.
PAF009496
Internal hexagon round-head countersunk screw
– ATF cooler
9 ea.
PAF009390
Screw plug with sealing ring
1 ea.
PAF008528
Screw plug with sealing ring
1 ea.
WHT008676
Hexagon-head bolt
– Strut
4 ea.
Required materials (usually already available at the Porsche
dealer):
Part No.
Designation
Qty.
00004321044
Transmission oil
20-liter/ 5.28 gallon
container 1)
1) approx.
Parts Info and
Materials (8B):
6 liter/ 1.58 gallon required per vehicle.
Parts required (for ATF cooler):
Part No.
Designation
– Use
Qty.
PAF009496
Internal hexagon round-head countersunk screw
– ATF cooler
9 ea.
0DT301461
Seal
– ATF cooler
1 ea.
PAF009390
Screw plug with sealing ring
1 ea.
PAF008528
Screw plug with sealing ring
1 ea.
WHT008676
Hexagon-head bolt
– Strut
4 ea.
Required materials (usually already available at the Porsche dealer):
Feb 16, 2024
Page 14 of 41
Part No.
Designation
Qty.
00004321044
Transmission oil
20-liter/ 5.28 gallon
container 1)
AfterSales
Service
Technical Information
1) approx.
Parts Info and
Materials (8C):
88/20
ENU
3734
3
6 liter/ 1.58 gallon required per vehicle.
Parts required (for ATF cooler):
Part No.
Designation
– Use
Qty.
PAF009496
Internal hexagon round-head countersunk screw
– ATF cooler
9 ea.
0DT301461
Seal
– ATF cooler
1 ea.
0DT300333
Heat exchanger
1 ea.
PAF009390
Screw plug with sealing ring
1 ea.
PAF008528
Screw plug with sealing ring
1 ea.
WHT008676
Hexagon-head bolt
– Strut
4 ea.
Required materials (usually already available at the Porsche dealer):
Part No.
Designation
Qty.
00004321044
Transmission oil
20-liter/ 5.28 gallon
container 1)
1) approx.
Invoicing (8A 8C):
6 liter/ 1.58 gallon required per vehicle.
For documentation and warranty invoicing, enter the labor operations, PQIS coding and relevant part
numbers specified below in the warranty claim:
APOS
Labor operation
37724950
Reworking oil cooler (8A)
37721950
Removing and installing oil cooler (without PDCC)
(8B - 8C)
37721952
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TSB/Document ID: No. 88-20
Replacement Service Bulletin Number:
MFR Communication Date: 2024-02-16
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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