Danger of fire, explosion
•

Insulation fault as a result of coolant leaking into high-voltage battery



Always drain the high-voltage battery cooling lines completely before transporting/handling the
high-voltage battery.
Required tools

Tools:

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

VAS 6883 - Insulated tool set
VAS 6558A - High-voltage test adapter
VAS 6558/9-6A - High-voltage test adapter HVR40
VAS 691 005/4 - Test adapter
VAS 542 007/2 - Hose set
VAS 6883A/2 - Socket insert, insulated
3033 - Lifting tackle
9860 - Adapter plate
VAS 6100 Workshop crane
9703 - Flexible screwdriver
VAS 6890 Spring band clamp pliers
VAG 1274B Cooling system tester
9696 - Filling device
VAS 6096/2 Vacuum pump
VAS 6562 Porsche adapter set for cooling system tester

AfterSales

Apr 30, 2021
Page 13 of 18

2

Service
2708

ENU

•
•
•
•
•

Work Procedure: 1

2

3

9900 - PIWIS Tester 3
Torque wrench, 0.4 - 2 Nm (0.3 - 1.5 ftlb.), e.g. VAS 6253A Torque wrench, 0.4 - 2 Nm (0.3 - 1.5
ftlb.)
Torque wrench, 2 - 10 Nm (1.5 - 7.5 ftlb.), e.g. VAG 1783 Torque wrench, 2-10 Nm (1.5-7.5
ftlb.)
Torque wrench, 6 - 50 Nm (4.5 - 37 ftlb.), e.g. VAG 1331A Torque wrench, 6-50 Nm (4.5-37
ftlb.)
Torque wrench, 20-100 Nm (15-74 ftlb.), e.g. VAS 5820 Torque wrench, 20-100 Nm (15-74
ftlb.)
Create vehicle analysis log (VAL) using the PIWIS Tester.
Mark the created vehicle analysis log with the attribute "Initial VAL" and once the high-voltage battery
has been installed, return it using the PIWIS Tester.
Remove high-voltage battery.
2.1

Observe warning notes  Workshop Manual '2X00IN General warning notes for working on
the high-voltage vehicle electrical system'.

2.2

Carry out classification of high-voltage battery  Workshop Manual '2X00IN Classification of
high-voltage battery'.

2.3

Isolate the high-voltage system from the power supply and complete documentation 
Workshop Manual '2X00IN Isolating high-voltage system from power supply/Starting
high-voltage system (diagnosis)'.

2.4

Drain coolant for the low-temperature system  Workshop Manual '193817 Draining and
filling coolant'.

2.5

Remove luggage compartment cover  Workshop Manual '700619 Removing and installing
trim panel for luggage compartment (luggage compartment cover) at the lock support'.

2.6

Remove side trim panel for rear luggage compartment  Workshop Manual '700319
Removing and installing side trim panel for rear luggage compartment'.

2.7

Remove cover for rear lock support  Workshop Manual '703919 Removing and installing
cover for rear lock support'.

2.8

Remove high-voltage battery  Workshop Manual '270819 Removing and installing
high-voltage battery'.

Repair the high-voltage battery.
3.1

4

Repair high-voltage battery  Workshop Manual '270837 Disassembling and assembling
high-voltage battery'.

Install new high-voltage battery.
4.1

Apr 30, 2021
Page 14 of 18

Technical Information

05/21

Install high-voltage battery  Workshop Manual '270819 Removing and installing
high-voltage battery'.

AfterSales

Service

Technical Information

5

6

05/21

ENU

2708

2

4.2

Install cover for rear lock support  Workshop Manual '703919 Removing and installing
cover for rear lock support'.

4.3

Install side trim panel for rear luggage compartment  Workshop Manual '700319
Removing and installing side trim panel for rear luggage compartment'.

4.4

Install luggage compartment cover  Workshop Manual '700619 Removing and installing
trim panel for luggage compartment (luggage compartment cover) at the lock support'.

4.5

Fill in coolant for the low-temperature system  Workshop Manual '193817 Draining and
filling coolant'.

4.6

Start the high-voltage system and complete the documentation  Workshop Manual
'2X00IN Isolating high-voltage system from power supply/Starting high-voltage system
(diagnosis)'.

Change vehicle data.
5.1

In the control unit selection screen ('Overview' menu), press •F7“ to call up the Additional
menu.

5.2

Select 'Maintenance of vehicle data' and
press •F12“ ('Next') to confirm  Maintenance of vehicle data.

5.3

Press •F12“ ('Next') to skip the displays
containing information about vehicle
description, colors/materials and X numbers.

5.4

Add the coding value 'ST2 - Installing HV
battery (37 Ah cells)' to the vehicle data
on the second page of the M numbers. To do
this, click in the "Installed" field for the relevant
Maintenance of vehicle data
coding value to select the value.
Make sure that the 'Installed' column is then ticked and that the pen symbol appears in the
'Changed' column.
Then press •F12“ ('Next') to exit the PR numbers display.

5.5

Press •F8“ in the overview that is then displayed to save the changed vehicle data.

5.6

Once you have saved the vehicle data, press •F11“ ('Back') to return to the control unit
selection screen.

Re-program control unit for high-voltage battery.
The basic procedure for control unit programming is described in the Workshop Manual 
Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the
PIWIS Tester'.
For specific information on control unit programming as part of this programming
process, see the table below.

AfterSales

Apr 30, 2021
Page 15 of 18

2

Service
2708

ENU

Technical Information

05/21

Required PIWIS Tester software version:

40.150.050 (or higher)

Type of control unit programming:

Control unit programming using the 'Campaign'
function in the Additional menu on the PIWIS
Tester by entering a programming code.

Programming code:

L3H7K

Programming sequence:

Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
The high-voltage battery control unit is
re-programmed and then re-codedautomatically during the programming sequence.
Do not interrupt programming and coding.

Programming time (approx.):

12 minutes

Software version programmed during this
campaign:

1400

Procedure in the event of error messages
appearing during the programming
sequence:

 Workshop Manual '9X00IN Basic instructions and

Following control unit programming, the software
version can be read out of the high-voltage battery
control unit in the 'Extended identifications' menu
using the PIWIS Tester.
procedure for control unit programming using the
PIWIS Tester - section on "Fault finding"'.

Information
During programming, the taught-in battery capacities are also reset.
7

Apr 30, 2021
Page 16 of 18

Lock the vehicle to start on-board diagnosis of the high-voltage battery.
7.1

Disconnect the PIWIS Tester from the vehicle.

7.2

Switch off the ignition and lock the vehicle with the driver's key.
Remove the driver's key and place outside the radio range of the vehicle at a distance of at
least 5 metres from the vehicle.

7.3

Unlock the vehicle again after waiting a minimum of 5 minutes.

7.4

Switch on ignition.

7.5

Plug the PIWIS Tester diagnostic connector into the diagnostic socket again and restore
communication with the vehicle.

AfterSales

Service

Technical Information
8

05/21

ENU

2708

2

Read out and erase fault memories.
8.1

In the control unit selection screen
('Overview' menu)  Control unit selection,
press •F7“ to call up the 'Additional
menu'.

8.2

Select “Read all fault memories and
erase if required” and press •F12“ ("Next")
to confirm your selection  Erasing fault
memories.
Control unit selection
The fault memories of the control units are
read out.

8.3

Once you have read out the fault memories,
check the fault memory entries.

8.4

Press •F8“ to delete fault memory entries.

8.5

Press •F12“ (“Yes”) in response to the
question as to whether you really want to
delete all fault memory entries.
The faults stored in the fault memories of the
various control units are deleted.

9

Erasing fault memories

Create a vehicle analysis log (VAL) using the PIWIS Tester.
Mark the vehicle analysis log you have just created with the attribute "Final VAL" and return it using
the PIWIS Tester.

Invoicing:
Information
If there is a warranty-relevant defect, it can be invoiced using the existing high-voltage battery warranty.
In the event of an expired high-voltage battery warranty and an existing PAW, then if a technical defect is
the case (not caused by wear) an application for invoicing for ageing and wear must be completed. The
costs can also be invoiced under "External service" in the warranty claim following a successful test.
For documentation and warranty invoicing, enter the labor operation, PQIS coding and part number
specified below in the warranty claim:
APOS

Labor operation

03350053

Self-diagnosis (creating VAL)

27081915

Removing and installing high-voltage battery

I No.

AfterSales

Apr 30, 2021
Page 17 of 18

2

Service
2708

ENU

Technical Information

05/21
I No.

APOS

Labor operation

27083762

Disassembling and assembling high-voltage
battery

19010700

Bleeding the cooling system
PQIS coding:

Location (FES5)

27080

High-voltage battery

Damage type (SA4)

1600

ineffective

References:

 Workshop Manual '270819 Removing and installing high-voltage battery'
 Workshop Manual '270837 Disassembling and assembling high-voltage battery'
 Workshop Manual '2X00IN General warning notes for working on the high-voltage vehicle electrical
system'

 Workshop Manual '2X00IN Classification of high-voltage battery'
 Workshop Manual '2X00IN Isolating high-voltage electrical system from power supply/Starting
high-voltage electrical system (diagnostics)'

 Workshop Manual '193817 Draining and filling coolant'
 Workshop Manual '700619 Removing and installing trim panel for luggage compartment (luggage
compartment cover) at the lock carrier'

 Workshop Manual '700319 Removing and installing side trim panel for rear luggage compartment'
 Workshop Manual '703919 Removing and installing cover for rear lock carrier'
 Workshop Manual '700619 Removing and installing trim panel for luggage compartment (luggage
compartment cover) at the lock carrier'

 Workshop Manual '2X00IN Isolating high-voltage electrical system from power supply/Starting
high-voltage electrical system (diagnostics)'

 Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the
PIWIS Tester'

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.

© 2021 Porsche Cars North America, Inc.

Apr 30, 2021
Page 18 of 18

AfterSales