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Figure 5
21

Leak around the oil filler
screw  Figure 6 -item
21-

Oil filler screw loose
Sealing ring on oil filler
screw damaged

Check the oil level and correct
it if necessary. Then replace
the oil filler screw with a sealing
ring (Part No. 970.321.805.xx)
 Workshop Manual '370235
Checking and topping up ATF'.
Tightening torque 35 Nm
(26 ftlb.)

Figure 6

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3 - Remedial action and repair measures in the event of complaints relating to comfort and noise
Work Procedure: 3

Remedial action and repair measures in the event of complaints relating to comfort
(gearshift and drive-off quality).
3.1

Create and save the Vehicle Analysis Log (VAL) using the PIWIS Tester.

3.2

Find and correct any faults that are present in other control units (DME, PSM, air conditioning,
etc.).

3.3

Check oil level in PDK transmission and correct it if necessary  Workshop Manual '370235
Checking and topping up ATF'.

3.4

Teach the throttle valve using the PIWIS Tester:
Select PIWIS Tester > DME control unit >> “Maintenance/repairs” menu >>> menu item
“Adaptations” >>>> “Throttle valve adaptation” function. Follow the instructions on the
PIWIS Tester.

3.5

Perform engine torque loss adaptation.
Conditions/procedure for engine torque loss adaptation:
•

•
•
•
•
•

Engine temperature is at least 176° F. (80° C.) (read out the temperature from the PDK
control unit by selecting “Actual values/Input signals” > “CAN input signals - Engine
temperature”).
All loads switched off.
PDK selector lever in position P.
Allow engine to run at idle speed for 3 minutes with air conditioning switched off.
Then allow engine to run at idle speed for 3 minutes with air conditioning switched on.
Switch off ignition and wait 15 seconds (adaptation values are stored).

3.6

Create and save the Vehicle Analysis Log (VAL) using the PIWIS Tester.

3.7

Perform adaptation drive.

WARNING
Driver steers off course during adaptation drive
•

Increased risk of accidents

•

Danger to other people on the roads



Get another person to accompany the driver and give him the relevant instructions for carrying
out the adaptation drive.



Only drive the vehicle to achieve the rpm and speed ranges required for the adaptation drive
in accordance with road traffic regulations and if the road, weather and traffic conditions are
conducive to such driving.

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Observe and meet the following conditions for the adaptation drive:
•

•
•
•
•
•

Transmission fluid temperature is > 140° F. (60° C.) (read out the temperature from
the PDK control unit by selecting “Actual values/Input signals” > “CAN output signals –
Transmission sump temperature”).
Perform adaptation drive on a level stretch of road.
Once the transmission fluid temperature is > 140° F. (60° C.), switch off the engine and
ignition and wait at least 20 seconds.
Switch on ignition, wait at least three seconds and then start the engine.
After you have switched the ignition off and then on again, there should be no error
messages displayed in the instrument cluster.
Perform adaptation drive in shift programme “M”.

3.7.1

Start the adaptation drive, accelerate to rev range 1,000 – 1,200 rpm in 5th
gear and maintain this range for two minutes.

3.7.2

Then change gear several times (in any target gear) and switch between
traction and overrun mode while driving in the selected gears.

3.7.3

Then, change to 5th gear again and repeat steps 3.7.1 to 3.7.3 twice. The
procedure must be done three times in total.

3.7.4

Continue the adaptation drive, accelerate to rpm range 1,000 – 1,200 rpm in 6th
gear and maintain this range for two minutes.

3.7.5

Then change gear several times (in any target gear) and switch between
traction and overrun mode while driving in the selected gears.

3.7.6

Then, change to 6th gear again and repeat steps 3.7.4 to 3.7.6 twice. (The
procedure must be carried out three times in total.)

3.7.7

Stop the vehicle, switch off the engine and ignition and wait at least 20 seconds.

3.7.8

Switch on ignition, wait at least three seconds and then start the engine.
There should be no error messages displayed in the instrument cluster.

3.7.9

Carry out adaptation drive once more as described in steps 3.7.1 to 3.7.6 .

3.7.10

Stop the vehicle, switch off the engine and ignition and wait at least 20 seconds.

3.7.11

Switch on ignition, wait at least three seconds and then start the engine.
There should be no error messages displayed in the instrument cluster.

3.7.12

Continue the adaptation drive, accelerate to rev range 2,000 – 2,500 rpm in 5th
gear and maintain this range for two minutes.

3.7.13

Then change gear several times (in any target gear) and switch between
traction and overrun mode while driving in the selected gears.

3.7.14

Then, change to 5th gear again and repeat steps 3.7.12 to 3.7.14 twice. The
procedure must be carried out three times in total.

3.7.15

Continue the adaptation drive, accelerate to rev range 2,000 – 2,500 rpm in 6th
gear and maintain this range for two minutes.

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3.7.16

Then change gear several times (in any target gear) and switch between
traction and overrun mode while driving in the selected gears.

3.7.17

Then, change to 6th gear again and repeat steps 3.7.15 to 3.7.17 twice. (The
procedure must be carried out three times in total.)

3.7.18

Stop the vehicle, switch off the engine and ignition and wait at least 20 seconds.

3.7.19

Switch on ignition, wait at least three seconds and then start the engine.
There should be no error messages displayed in the instrument cluster.

3.7.20

Carry out adaptation drive once more as described in steps 3.7.12 to 3.7.17 .

3.7.21

Stop the vehicle, switch off the engine and ignition and wait at least 20 seconds.

3.7.22

Switch on ignition, wait at least three seconds and then start the engine.

3.7.23

End the adaptation drive.

3.7.24

Create and save the Vehicle Analysis Log (VAL) using the PIWIS Tester.

3.7.25

Leave the vehicle overnight if necessary and evaluate it again with regard to
gearshift/drive-off quality the next day.
•
•

If the vehicle checks out OK with regard to gearshift/drive-off quality  End of
remedial action.
If the vehicle does not show any improvement with regard to
gearshift/drive-off quality, please contact PCNA to find out what to do next.

4 - Procedure in the event of noises on the PDK transmission
4

Procedure in the event of noises on the PDK transmission.
If a complaint is received in relation to noises from the PDK transmission, please complete the
following steps initially:
4.1

Create and save the Vehicle Analysis Log (VAL) using the PIWIS Tester.

4.2

Find and correct any faults that are present in other control units (DME, PSM, air conditioning,
etc.).

4.3

Check to see if the noise is actually coming from the transmission.
Also check other possible noise sources, such as:
– Engine (e.g. adjacent damping parts)
– Rear-axle differential
– Wheels, wheel bearings
– Cardan shaft bearing
– Power-steering pump

4.4

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Check the oil level in the PDK transmission and correct it if necessary  Workshop Manual
'370235 Checking and topping up ATF'.

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4.5

If the data version of the PDK control unit is not up-to-date, re-program the PDK control unit.
To do this, select “Programming” > “Automatic programming” in the PDK control unit using
the PIWIS Tester and confirm with •>>“.
The name of the control unit to be programmed (in this case: PDK) as well as the data record
to be programmed and the Porsche part number and status will be displayed.
If “not current” is displayed in the status display, re-program the PDK control unit. If the data
record is already up-to-date (“current” in the status display), there is no need to program the
PDK control unit.

4.6

Teach the throttle valve using the PIWIS Tester:
Select PIWIS Tester II > DME control unit >> “Maintenance/repairs” menu >>> menu item
“Adaptations” >>>> “Throttle valve adaptation” function. Follow the instructions on the
PIWIS Tester.

4.7

Perform engine torque loss adaptation.
Conditions/procedure for engine torque loss adaptation:
•

•
•
•
•
•
4.8

Engine temperature is at least 176° F. (80° C.) (read out the temperature from the PDK
control unit by selecting “Actual values/input signals” > “CAN input signals - Engine
temperature”).
All loads switched off.
PDK selector lever in position P.
Allow engine to run at idle speed for 3 minutes with air conditioning switched off.
Then allow engine to run at idle speed for 3 minutes with air conditioning switched on.
Switch off ignition and wait 15 seconds (adaptation values are stored).

Perform a test drive.

If, after carrying out tests and/or correcting faults, the vehicle still has definite symptoms in relation to
transmission noises, please document the information specified below in PIWIS/PQIS:
•

Create and save a sound file of the noise

•

Provide a detailed description of the noise (e.g. rattling, grinding, whining, whistling, singing, …)

•

In which rpm range does the noise occur?

•

In which drive and shift program does the noise occur (D, M, Sport, Sport Plus)?

•

In which gear does the noise occur?

•

At what speed does the noise occur?

•

In which load condition does the noise occur (acceleration, deceleration, partial load, full load)?

•

In which operating state does the noise occur (cold, warm)?

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•

Who noticed the noise (customer, workshop)?

•

What work has already been done?

•

How do comparable vehicles behave?

Contact Porsche to find out what to do next.
References:

 Workshop Manual '0X03IN Creating Vehicle Analysis Log (VAL)'
 Workshop Manual '370235 Checking and topping up ATF'
 Workshop Manual '370255 Changing ATF'
 Workshop Manual '373019 Removing and installing transmission control unit (PDK)'
 Workshop Manual '373055 Replacing transmission control unit (PDK)'
 Workshop Manual '373419 Removing and installing Porsche Doppelkupplung (PDK)'
 Workshop Manual '373455 Replacing Porsche Doppelkupplung (PDK)'
 Workshop Manual '375519 Removing and installing ATF pan'
 Workshop Manual '387055 Replacing sealing ring for output shaft'
 Workshop Manual '387719 Removing and installing hydraulic control unit'

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.

© 2020 Porsche Cars North America, Inc.

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