991911-16

Installation and Conversion Instructions
911 (991)
11/16
ENU
9415
9
Black LED Headlights incl. Porsche Dynamic Light System Plus (I-no. XEY)
Concern:
Retrofitting
Model Year:
As of 2017
Restriction:
Only for vehicles with LED headlights incl. Porsche Dynamic Light System Plus (I-no. 602).
Information:
The operation and design of the black LED headlights is the same as that of the LED headlights including
Porsche Dynamic Light System Plus. Inner components and paintwork are in dark chrome metallic.
Parts Info:
991.044.902.02
2016© Porsche Cars North America, Inc.
 LED headlights, USA, set
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Apr 11, 2016
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911 (991)
9415
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Installation and Conversion Instructions
11/16
Parts List:
Figure 2 RoW Version Shown
Tools:
———
1x
LED headlight, black, left, USA (XEY)
———
1x
LED headlight, black, right, USA (XEY)
9900 - PIWIS Tester 3
Work Procedure:
Information
Some of the repair illustrations show only one side of the vehicle. Naturally, some steps also have
to be performed on the opposite side of the vehicle as well. These must be carried out as a mirror
image of the steps shown.
1
Preparatory work
1.1
Connect a battery charger.  Workshop Manual '2X00IN Battery trickle charging'
1.2
Remove front apron.  Workshop Manual '631519 Removing and installing front apron'
1.3
Remove headlight.  Workshop Manual '941519 Removing and installing headlights'
Information
Always comply with the regulations for handling ESD-sensitive components!
Apr 11, 2016
Page 2 of 6
•
Assembly work must only be carried out if the technician is wearing Porsche approved work
clothes and shoes.
•
The new part must only be removed from the ESD (electrostatic discharge) protective
packaging just before installation and at the position at which the part is to be installed.
•
Never touch the electric pins and plug contacts.
Tequipment
2016© Porsche Cars North America, Inc.
Installation and Conversion Instructions
2
911 (991)
11/16
ENU
9415
9
Convert headlights.
2.1
Remove light adjustment control unit 
Figure 3 -2- from the standard headlight and
install it on the new headlight.  Workshop
Manual '945719 Removing and installing
control unit for light adjustment'
Figure 3
2.2
Convert LED module  Figure 4.
2.2.1
Remove LED module fan and
LED module fan holder from the
standard headlight.  Workshop
Manual '941519 Removing and
installing LED module fan'
2.2.2
Remove LED module from the
standard headlight and install it in
the new headlight.  Workshop
Manual '942419 Removing and
installing LED module'
2.2.3
2.3
2.4
Figure 4
Install LED module fan and LED
module fan holder in the new headlight.  Workshop Manual '941519 Removing
and installing LED module fan'
Remove LED module control unit from the standard headlight.
2.3.1
Unscrew screws  Figure 5 -1-.
2.3.2
Carefully disconnect LED module
control unit  Figure 5 -2- from the
headlight.
Fit LED module control unit on the new
headlight.
Figure 5
2016© Porsche Cars North America, Inc.
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911 (991)
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Installation and Conversion Instructions
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2.4.1
Check that the seal  Figure 6
-3- is fitted correctly on the LED
module control unit  Figure 6 -2-.
2.4.2
Carefully insert LED module
control unit  Figure 6 -2- into the
headlight.
2.4.3
Screw in and tighten screws 
Figure 6 -1-.
Concluding work
3.1
Install headlight.  Workshop Manual
'941519 Removing and installing headlights'
Figure 6
Install front apron.  Workshop Manual '631519 Removing and installing front apron'
NOTICE
Voltage drop
•
Risk of irreparable damage to control unit
•
Risk of damage to control unit
•
Fault entries in the control unit
•
Coding in the control unit is aborted
•
Malfunctions in control unit, even during programming

Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.

Ensure that the power supply is not interrupted during programming.

Connect battery charger/power supply suitable for AGM Type batteries, recommended current rating
of 70A fixed voltage 13.5V to 14.5V.
Information
The 9818 - PIWIS Tester 2 instructions take precedence since the description may be different
with later Tester releases.
The procedure described here has been structured in general terms; different text or additions may
appear on the 9818 - PIWIS Tester 2.
4
Apr 11, 2016
Page 4 of 6
Code headlights.
4.1
9900 - PIWIS Tester 3
4.2
Select vehicle type. PIWIS Tester II Diagnostics starts.
4.3
Update vehicle data.
Tequipment
2016© Porsche Cars North America, Inc.
Installation and Conversion Instructions
911 (991)
11/16
ENU
9415
4.3.1
Additional menu must now be selected by pressing •F7“. Press •F11“ to
confirm the question “Create vehicle analysis log (VAL)?”.
4.3.2
Select the Maintenance of vehicle data function. Press •F12“ until X
numbers appears in the Value group column.
4.3.3
Select XEY - LED headlights, darkened + dynamic cornering light in the
Coding value column. When you touch the Installed cell, a tick appears.
9
Press •F12“ until M numbers appears in the Value group column.
Select 602 - LED headlights + dynamic cornering light in the Coding value
column. When you touch the Installed cell, the tick disappears.
Press •F12“ to continue.
4.3.4
A table showing all selected coding values appears. Press •F8“ to write values.
Wait until the message Generation of vehicle data is complete appears.
4.3.5
Press •F12“ to switch to Report management. Press •F10“ to open the log and
check whether the vehicle equipment
XEY - LED headlights, darkened + dynamic cornering light is entered.
Check that the vehicle equipment "602 - LED headlights + dynamic cornering light"
is no longer entered. Close the log.
4.4
Headlight start-up
4.4.1
Select the Headlights, left/central control unit.
Switch to the Maintenance/repairs menu.
4.4.2
Select the Headlight start-up function. Press •F12“ to continue.
Follow the instructions on the PIWIS Tester until the message Start-up completed
successfully appears. Press •F12“ to continue.
Switch to the Overview menu. Press •F11“ to go back.
4.5
Read out the fault memories of all systems, work through any existing faults and erase the
fault memories.  Workshop Manual '033500 Fault memory for on-board diagnosis'
4.6
Switch off ignition and disconnect 9900 - PIWIS Tester 3.
5
Adjust main headlights.  Workshop Manual '941519 Removing and installing headlights'
6
Disconnect battery charger.  Workshop Manual '2X00IN Battery trickle charging'
2016© Porsche Cars North America, Inc.
Tequipment
Apr 11, 2016
Page 5 of 6
9
911 (991)
9415
94152341:
ENU
Installation and Conversion Instructions
11/16
Retrofitting black LED headlights
Includes:
Removing and installing headlights and front apron, adjusting
headlights
Labor time: 226 TU
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. If a particular condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your authorized Porsche Dealer for the latest information
about whether a particular technical bulletin applies to your vehicle. Part numbers listed in these bulletins are for reference only. Always check with your authorized Porsche dealer to verify the current and
correct part numbers. 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.
© Porsche Cars North America, Inc.
Dealership
Distribution
Routing
Service Manager
_______
Shop Foreman
_______
Service Technician
________
_______
_______
_______
Asst. Manager
_______
Warranty Admin.
_______
Service Technician
________
_______
_______
_______
Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®,
Cayman®, Macan®, Panamera®, Speedster®, Spyder®, 918 Spyder®, Tiptronic®, VarioCam®, PCM®, PDK®, 911®, RS®, 4S®, FOUR, UNCOMPROMISED®, and the model numbers and the
distinctive shapes of the Porsche automobiles such as, the federally registered 911 and Boxster automobiles. The third party trademarks contained herein are the properties of their respective owners.
Porsche Cars North America, Inc. believes the specifications to be correct at the time of printing. Specifications, performance standards, standard equipment, options, and other elements shown are
subject to change without notice. Some options may be unavailable when a car is built. Some vehicles may be shown with non-U.S. equipment. The information contained herein is for internal authorized
Porsche dealer use only and cannot be copied or distributed. Porsche recommends seat belt usage and observance of traffic laws at all times.
Printed in the USA
Apr 11, 2016
Page 6 of 6
Tequipment
2016© Porsche Cars North America, Inc.