Sequence 3 includes other control units from the software
release VR12.1.1, which are only re-coded.
Following control unit programming, the software version
can be read out of the relevant control unit in the 'Extended
identifications' menu using the PIWIS Tester.

Procedure in the event of
abnormal termination of control
unit programming:

•
•

•

•

•

End and restore operational readiness (switch ignition
off and then on again).
Read out and erase the fault memory  Workshop
Manual '9X00IN Basic instructions and procedure for
control unit programming using the PIWIS Tester'.
Repeat control unit programming by entering the
programming code again, whereby extended logging
must be started using the key combination •Ctrl“ +
•L“.
Extended logging records diagnostic software data,
particularly vehicle communication data, which
is required for analysing the issues that caused
programming to be aborted.
If control unit programming is aborted a second time,
end operational readiness for approx. 15 minutes

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WMH0

(switch off ignition) and repeat the procedure described
here again.
Procedure in the event of error
messages appearing during the
programming sequence:
4

 Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming using the PIWIS
Tester - section on "Fault finding"'.

Standardize front and rear doors consecutively.
4.1

Select all four door control units in the control unit selection screen ('Overview' menu) and
press •F12“ ('Next') to confirm your selection.

4.2

Once the door control units have been found and are displayed in the overview, select the
'Maintenance/repairs' menu.

4.3

Select the 'Standardization run' function for the first of the four door control units and
press •F12“ ('Next') to confirm.

4.4

Read the instructions and confirm by pressing •F12“ ('Next').

4.5

Meet the displayed conditions that must be checked manually, tick the relevant 'Status' box,
and press •F12“ ('Next') to confirm.

4.6

Select the Door \ Power window standardization function and press •F8“ ('Execute') to
start the procedure.

4.7

Standardize the other three door control units in succession.
To do this, repeat Steps 5.3 - 5.6 for the relevant door control units.

4.8

Once all four door control units have been coded, select the 'Overview' menu to return to
the control unit selection screen.

Concluding work - Scope 4
WARNING
Electrically moved side windows and rear spoiler
•

Danger of limbs being trapped or severed

•

Risk of damage to components



Do not reach into the danger area.



Keep third parties away from the danger area.



Do not move components or tools into the danger area.

Work Procedure: 1

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Establish bus idle for at least 15 minutes.
1.1

End operational readiness (switch off ignition).

1.2

Disconnect the PIWIS Tester diagnostic connector from the diagnostic socket.

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3

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1.3

Lock the vehicle using the driver's key and remove the driver's key from the proximity of the
vehicle (approx. 10 metres).

1.4

Unlock the vehicle again after waiting for at least 15 minutes.

1.5

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

Manually retract the rear spoiler, which extended automatically during programming.
2.1

Select the 'Rear spoiler' control unit in the control unit selection screen ('Overview' menu)
and press •F12“ ('Next') to confirm.

2.2

Once the rear spoiler control unit has been found and is displayed in the overview, select the
'Maintenance/repairs' menu.

2.3

Select the function ‘Teach rear spoiler’ and press •F12“ (‘Next’) to confirm.

2.4

Read the instructions and confirm by pressing •F12“ ('Next').

2.5

Meet the displayed conditions that must be checked manually and tick the relevant 'Status'
box.

2.6

Select the Teach rear spoiler function and press •F8“ ('Execute') to confirm.

2.7

Once the rear spoiler has been taught and retracted fully, select the 'Overview' menu to
return to the control unit selection screen.

Only relevant if the message "Tire pressure monitoring fault - Service necessary" is displayed:
Teach Tire Pressure Monitoring (TPM) system using the PIWIS Tester.  Workshop Manual '443225
Teaching wheel electronics'
Information
In the menu-guided procedure, check the 'Teach wheel IDs' menu item after confirming with
•F12“ to make sure that the function 'Teach 2nd wheel IDs without driving' is selected.
Then, select the function '2nd wheel IDs unknown' and continue the procedure according to menu
guidance.

4

Read out and erase the fault memories of all control units.
4.1

Press •F7“ in the control unit selection screen ('Overview' menu) to call up the Additional
menu.

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4.2

Select the function “Read all fault memories
and erase if required” and press •F12“
('Next') to confirm .
The fault memories of the control units are
read out.

4.3

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

4.4

Press •F8“ to delete fault memory entries.

4.5

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.
Information
If fault memory entries for individual control units cannot be deleted, proceed as follows:

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•

End operational readiness (switch off ignition).

•

Disconnect the PIWIS Tester diagnostic connector from the diagnostic socket.

•

Lock the vehicle using the driver's key and remove the driver's key from the proximity of
the vehicle (approx. 10 metres).

•

Unlock the vehicle again after waiting for at least 15 minutes.

•

Restore operational readiness (switch on ignition).

•

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.

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4.6

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Once you have erased the fault memories,
select the 'Overview' menu to return to the
control unit selection screen .

5

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

6

End operational readiness (switch off ignition).

7

Disconnect the PIWIS Tester from the vehicle.

Control unit selection

Information
Connect the PIWIS Tester to a network as soon as possible and log into the PPN in order to transfer
the backup documentation created during this campaign to the PAG systems.
8

Switch off and disconnect the battery charger.

9

Enter the campaign in the Warranty and Maintenance booklet.
–End of action required –
For warranty processing, see Scope 4 under  Technical Information '443225 Warranty
processing'

Re-programming various control units - Scope 5
WARNING
Electrically moved side windows and rear spoiler
•

Danger of limbs being trapped or severed

•

Risk of damage to components



Do not reach into the danger area.



Keep third parties away from the danger area.



Do not move components or tools into the danger area.
NOTICE

Using the software on vehicles that are not assigned to this campaign:
•

Risk of damage to control unit



Use the listed software versions only for the vehicles assigned to the campaign.

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Work Procedure: 1

Technical Information

ENU 120/21

Only relevant for vehicles with Scope 5: Start control unit programming of VR8.6.
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 of VR8.6 during this campaign, see
the table below:
Required PIWIS Tester software version:

40.450.020 (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:

P5P8E

Programming sequence:

Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
Do not interrupt programming and coding.
A backup documentation process for the
re-programmed software versions starts as soon as
programming and coding is complete.

Programming time (approx.):

up to 120 minutes

Software versions programmed during
this campaign:

•

Over-the-air (OTA) control unit

0861

•

High-voltage power electronics,
front and rear

0012

•

Control unit for high-voltage
charger (OBC)

1073

•

High-voltage battery control unit
(BMCe)

E860

•

Chassis control (PASM)

0896

•

Display and operator control unit
in rear center console

0897

•

Instrument cluster

0394

Following control unit programming, the software
version can be read out of the relevant control unit in
the 'Extended identifications' menu using the PIWIS
Tester.

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Procedure in the event of abnormal
termination of control unit programming:

•
•

•

•

•

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

9

End and restore operational readiness (switch
ignition off and then on again).
Read out and erase the fault memory 
Workshop Manual '9X00IN Basic instructions
and procedure for control unit programming
using the PIWIS Tester'.
Repeat control unit programming by entering
the programming code again, whereby
extended logging must be started using the key
combination •Ctrl“ + •L“.
Extended logging records diagnostic software
data, particularly vehicle communication data,
which is required for analysing the issues that
caused programming to be aborted.
If control unit programming is aborted a
second time, end operational readiness for
approx. 15 minutes (switch off ignition) and
repeat the procedure described here again.

 Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming using the
PIWIS Tester - section on "Fault finding"'.

2

Then perform software update to software release VR8.7.

3

Start control unit programming of VR8.7.
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 of VR8.7 during this campaign, see
the table below:
Required PIWIS Tester software version:

40.450.020 (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:

V6P8C

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Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.

Programming sequence:

Do not interrupt programming and coding.
A backup documentation process for the
re-programmed software versions starts as soon as
programming and coding is complete.