No. 155-21-2

Service
Technical Information
155/21 ENU WML0
9
WML0 – Retrofitting Loudspeaker Booster (Delivery Stop)
Revision:
This bulletin replaces bulletin Group 9 155/21 WML0, dated November 9, 2022.
Model Year:
As of 2021 up to 2023
Model Line:
Macan (95B)
Equipment:
BOSE Surround Sound System (M-no. 9VL)
Concerns:
Loudspeaker booster
Information:
Due to worldwide semiconductor shortages experienced by some suppliers, the affected
vehicles were built without a loudspeaker booster.
Action required: Retrofit loudspeaker booster.
Information
Please note that an incremented test must be carried out on all newly supplied Bose loudspeaker
boosters after installation from calendar week 48/2022. Detailed information is provided in the
following campaign description. The time required for additional work is included in the newly created
Scope 11.
Information
Please also note that the new loudspeaker boosters must be re-coded using the latest PIWIS Tester
software version during the teaching process. The minimum requirement is version 41.550.013.
Information
Each vehicle will now be assigned 2 Repair Scopes from CW45 onward. The new Scope 11
applies to vehicles where the original Campaign Part V04015001FG is used. Scope 9 is to be
claimed if the new Campaign Part V04015009B is used. Your dealer will need to choose the
correct scope when submitting the warranty claim based off the part used for each vehicle.
The new part V04015009B will begin to arrive at dealers starting CW46 as well as continued
allocations of the original part V04015001FG. .
The two parts are identical and can be used on any Macan with WML0 but must be recorded
properly in the Warranty system for proper billing of your dealer.
Scope 9, 11: Installing and teaching loudspeaker booster
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Service
Affected
Vehicles:
Technical Information
ENU 155/21
WML0
Only vehicles assigned to the campaign (see also PCSS Vehicle Information).
Installation
Position:
Installation position
– Loudspeaker booster (retrofit)
Parts required
Parts Info:
Part No.
Designation
Qty.
V04015001FG
 Booster
1 ea.
As of CW 46/2022:
 Booster
1 ea.
 Internal hexagon round tapping screw
4 ea.
V04015009B
N 90974701
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Technical Information
155/21 ENU WML0
9
Required tools
NOTICE
Use of a PIWIS Tester test software version that is older than the prescribed version
•
Measure is ineffective

Always use the specified version or a higher version of the PIWIS Tester software for control unit
programming or coding.
Tools:
•
•
•
Torque wrench, 2-10 Nm (1.5-7.5 ftlb.), e.g. V.A.G 1783 - Torque wrench, 2-10 Nm (1.5-7.5
ftlb.)
Battery charger with a current rating of at least 90 A and - if required - also with a current and
voltage-controlled charge map for lithium starter batteries, e.g. VAS 5908 Battery charger,
90 A
9900 - PIWIS Tester 3 with installed PIWIS Tester software version 41.550.013 (or higher)
installed
Installing loudspeaker booster
NOTICE
Incorrect handling of optical waveguides
•
Risk of damage to optical waveguide

Observe the requirements for working with and installing optical waveguides.
NOTICE
Voltage peaks
•
Risk of damage to electrical load or to the control unit

Switch off ignition and keep transmitter key outside of the transmission range (at least 5 m).

Switch off electrical loads before disconnecting or removing them.
Work
Procedure:
Information
Always comply with the regulations for handling ESD-sensitive components!
•
Always wear approved work clothes and shoes when carrying out assembly work.
•
Do not remove new parts from ESD (electrostatic discharge) protective packaging until shortly
before installation.
•
Do not touch electric pins and plug contacts.
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Technical Information
ENU 155/21
WML0
1
Remove side trim panel for rear luggage compartment at the left.  Workshop Manual '700319
Removing and installing side trim panel for rear luggage compartment'
2
Position loudspeaker booster  Loudspeaker
booster -1-, screw in fastening screws  Loudspeaker booster -2- and tighten to Tightening
torque 6 Nm (4.5ftlb.) .
Information
The number of connecting lines for the loudspeaker
booster will vary depending on equipment and the
connecting lines are located close to the installation
position. These may be fastened in place and may have to
be exposed beforehand.
3
Plug in and lock electric plug connections  Loudspeaker booster -3-.
4
Install side trim panel for rear luggage compartment
at the left.  Workshop Manual '700319 Removing
and installing side trim panel for rear luggage
compartment'
5
Loudspeaker booster
After installing the loudspeaker booster, continue as follows:
Continue with Technical Information '700319 Warranty processing'
End of action required -
Teaching loudspeaker booster
NOTICE
Voltage drop
•
Destruction of control unit
•
Damage to control unit
•
Fault entries in the control unit
•
Coding in the control unit is aborted
•
Malfunctions in control unit, even during programming
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Technical Information
155/21 ENU WML0

Switch off ignition before connecting the control unit.

Ensure that the power supply is not interrupted during programming.

Connect a battery charger with a current rating of at least Current 90 A to the vehicle battery.
Work
Procedure:
9
Information
To carry out the campaign, the PIWIS Tester must be online and logged into the Porsche Partner Network
(PPN).
1
Connect the PIWIS Tester to the vehicle communication module (VCI) via the USB cable. Then
connect the communication module to the vehicle and switch on the PIWIS Tester.
2
Switch on the ignition.
3
Select the vehicle type if necessary.
4
In the overview, press •F7“ to switch to the Additional menu. Press •F11“ ('Next') to continue.
5
When the question “Create Vehicle Analysis Log (VAL)?” appears, either press •F12“ ('Yes') to
create a VAL or press •F11“ ('No') if you do not want to create a VAL.
6
Select 'Commission component protection'. Follow instructions and procedure. Press •F12“
('Next') to continue.
7
Enter the PPN user name and password. Press •F12“ ('Next') to continue.
8
Allow the Tester to run the procedure.
9
Check the chassis number and enter the order number. Press •F12“ ('Next') to continue.
10 Allow the Tester to run the procedure. Press •F12“ ('Next') to continue.
11 The 'Commission component protection' message appears. Press •F12“ ('Next') to continue.
12 Once the teaching process is completed successfully, the following status is displayed:
Gateway: Component protection taught
PCM 4.0: Component protection taught
Booster: Component protection taught
Press •F12“ ('Next') to continue.
13 The message "Component protection commissioning was successful" appears. Press •F12“
('Next') to continue.
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Technical Information
ENU 155/21
14 Go back to the overview. Press •F11“ ('Next') to continue.
15 Select the 'External booster' control unit in the overview. Press •F12“ ('Next') to continue.
16 Select 'Coding/adaptation'.
17 Select 'Automatic coding'. Press •F12“ ('Next') to continue.
18 The message "Coding was completed successfully" appears. Press •F12“ ('Next') to continue.
19 Read out and erase the fault memories of all control units.
19.1
Press •F7“ in the control unit selection screen ('Overview' menu) to call up the Additional
menu.
19.2
Select the function 'Read all fault
memories and erase if required'. Press
•F12“ ('Next') to continue.  Erasing fault
memories
The fault memories of the control units are
read out.
19.3
Once you have read out the fault memories,
check the fault memory entries.
Erasing fault memories
Information
If control units are found to have faults that
are not caused by control unit programming, these must first be found and corrected. This
work cannot be invoiced under the workshop campaign number.
19.4
Press •F8“ to delete fault memory entries.
19.5
Press •F12“ ('Yes') in response to the question asking whether you really want to delete all
fault memory entries.
The faults stored in the fault memories of the various control units are deleted.
Information
If fault memory entries for individual control units cannot be deleted, proceed as follows:
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•
Switch off ignition.
•
Disconnect the PIWIS Tester diagnostic connector from the diagnostic socket.
•
Lock the vehicle using the driver's key.
•
Wait approx. 1 minute before unlocking the vehicle again.
•
Start the engine, leave it running for a short time and then stop it again.
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Technical Information
19.6
155/21 ENU WML0
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•
Switch off the ignition and wait approx. 10 seconds before switching it back on again.
•
Plug the PIWIS Tester diagnostic connector into the diagnostic socket again and restore
communication with the vehicle.
•
Read out the fault memory again and delete any fault memory entries that are stored.
Once you have erased the fault memories,
select the 'Overview' menu to return to the
control unit selection screen  Control unit
selection.
20 Exit the diagnostic application. Switch off ignition.
Disconnect the Tester from the vehicle.
21 Perform incremented function test on loudspeaker booster.
21.1
Control unit selection
Switch on ignition.
Information
Because no interference-free audio quality can be guaranteed in the radio, there must be no
audio output via radio for the test, rather it must be played via another audio source, e.g.
via a USB stick.
21.2
Select a suitable audio source.
21.3
Set playback volume to 15 clicks.
21.4
Listen to the audio for 2 minutes in the vehicle, and check for brief dropouts and/or
disturbing noises (e.g. recurring creaking noises).
21.5
Switch off ignition.
21.6
Open and lock driver door.
21.7
Lock the vehicle, and wait at least 1 minute so that Porsche Communication Management
(PCM) shuts down.
21.8
Unlock the vehicle, and repeat Steps 21.1 to 21.7 a additional 2 times. When restarting,
the Porsche logo must be displayed on the PCM system. Otherwise, repeat from Step 21.5
onwards and wait for at least the wait time in Step 21.7.
Information
The loudspeaker booster must be replaced if dropouts and/or disturbing noises are
detected. Only use the amplifiers with campaign part numbers when replacing. The
incurred labor costs and the additional cost of parts required over and above this scope
must be invoiced using a reimbursement claim for the original campaign claim for this
campaign. In this case, the removed and faulty loudspeaker booster will be requested and
must be returned for further analysis.
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Technical Information
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22 Enter the campaign in the Warranty and Maintenance booklet.
Warranty processing
Information
The working times specified below were determined specifically for carrying out this campaign and may
differ from the working times published in the PCSS Labor Operation List.
Scope 1:
Dummy scope – billing not possible
Information
Scopes 1 –8, 10 are not applicable for this vehicle type.
Scope 9:
Installing loudspeaker booster and teaching loudspeaker booster
Valid for
•
•
Macan (95B)
As of CW 46/2022
Working time:
Installing loudspeaker booster
Includes:
Removing and installing side trim panel for rear luggage
compartment at the left
Teaching loudspeaker booster
Reading out and erasing fault memories
Function test
Labor time: 65 TU
Parts required:
V04015009B
Booster
1 ea.
N 90974701
Internal hexagon round tapping screw
4 ea.
 Damage Code WML0 066 000 1
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Service
Technical Information
Scope 11:
155/21 ENU WML0
9
Installing loudspeaker booster and teaching loudspeaker booster
Valid for
•
Macan (95B) with incremented function test
Working time:
Installing loudspeaker booster
Includes:
Removing and installing side trim panel for rear luggage
compartment at the left
Teaching loudspeaker booster
Reading out and erasing fault memories
Incremented function test
Labor time: 65 TU
Parts required:
V04015001FG
Booster
1 ea.
N 90974701
Internal hexagon round tapping screw
4 ea.
 Damage Code WML0 066 000 1
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.
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