Service

Technical Information

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WE83 - Check Front Level Sensors, Left and Right (Workshop Campaign)

Vehicle type:

918 Spyder

Model Year:

2015

Concerns:

Front level sensors, left and right

Information:

This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. It is possible
that the sensors for the levelling system on the front axle of the relevant vehicles may be
damaged or incorrectly positioned in relation to the control arms.
If a sensor is damaged, a fault entry may occur in the PASM control unit over the service life of the vehicle
and, as a result, a "Chassis system fault" warning message may appear in the instrument cluster.
This fault type may occur after only a short time if a sensor is incorrectly positioned.

Action
Required:

Check the front level sensors, left and right.

Affected
vehicles:

The VIN(s) can be checked by using PIWIS Vehicle Information link to verify if the campaign affects the
vehicle. This campaign is scope specific to the VIN! Failure to verify in PIWIS may result in an improper
repair. This campaign affects 24 vehicles in North America.

Parts Info:

ALL PARTS AND MATERIALS SHOULD BE ORDERED VIA A PTEC/PAV.
NOTE: Parts allocation to PCNA for Scopes 3 & 4 is based upon an extremely low failure rate being experienced in rest-of-world. PLEASE BE CONSERVATIVE IN ORDERING PARTS AS THEY WILL REMAIN
IN EXTREMELY SHORT SUPPLY THROUGHOUT THE DURATION OF THIS CAMPAIGN. Any parts or
materials required for Scopes 3 and 4 should be ordered via a PTEC/PAV.

Materials:

Tools:

•
•
•
•
•

Part No.

Designation
– Use

Qty.

000.043.300.35

 McLube Sailkote High Performance Dry Lube
– central wheel lock
Also commercially available at marine supply stores.

428 g spray can
As much as required

9002 - Lifting platform holders
9003 - Socket wrench for central wheel lock
9004 - Socket wrench for central wheel lock cover
9453 - Access ramps (or similar)
Torque wrench 150 – 800 Nm (111 - 592 ftlb.), e.g. V.A.G 1601 - Torque wrench 150 – 800 Nm
(111 - 592 ftlb.)

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•

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Technical Information

Torque wrench, 6 – 50 Nm (4.5 – 37 ftlb.), e.g. V.A.G 1331 - Torque wrench, 6-50 Nm (4.5-37
ftlb.)
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.)

Work
Procedure:

See Attachment “A”.

Claim
Submission.

See Attachment “B”.

Attachment "A"
Work Procedure: 1

2

Raise the vehicle on a lifting platform  Workshop Manual '4X00IN Lifting the vehicle'.
1.1

Position the vehicle between the arms of the lifting platform and push it onto the 9453 access ramps.

1.2

Remove underbody covers on the and fit mounting plates 9002 - Lifting platform holders,
 Workshop Manual '518119 Removing and installing jacking points'.

1.3

Jack and raise the vehicle at the mounting plates.

Remove both front wheels  Workshop Manual '440519 Removing and installing wheel'.

Check the front level sensors, left and right
Work Procedure: 1

Check the lever arm  Checking the level sensor for damage -1- and connecting link  Checking
the level sensor for damage -2- of the front level sensors on left and right for damage.
If the lever arm is bent or cracked or the connecting link is damaged, the relevant level
sensor must be replaced  Technical Information 'WE8300 Replacing the front level sensor(s)'.
Otherwise continue with Step 2 and check the installation position of the level sensors.

Checking the level sensor for damage

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Check the installation position of the front level
sensors, left and right.
•

The lever arm  Installation position of the level
sensor -1- of the level sensor faces outwards
towards the front wheel  Installation position
of the level sensor -top-: The level sensor is
correctly positioned.

•

The lever arm  Installation position of the level
sensor -1- of the level sensor faces inwards
towards the vehicle body  Installation position
of the level sensor -bottom-: The level sensor is
incorrectly positioned.

If one or both level sensors are incorrectly positioned, the installation position must be corrected 
Technical Information 'WE8300 Correcting the installation position of the front level sensor(s)'.

Installation position of the level sensor

If both level sensors are undamaged and positioned correctly End of action required,
complete the vehicle  Technical Information 'WE8300 Subsequent work'.

Correcting the installation position of the front level sensor(s)
Tools:

•
•
•

Suitable removal lever, e.g. VAS 6933 - disassembly tool.
9818 - PIWIS Tester II
Battery Charger/Power Supply - Suitable for lithium ion type batteries, recommended current
rating of 70A fixed voltage 13.8V. Refer to Equipment Information EQ-1105.

Work
Procedure:
NOTICE
Incorrect handling of the level sensor
•

Damage to the level sensor

•

Damage to the connecting link for the level sensor



Disconnect the connecting link only at the control arm.



Do not use sharp-edged tools to lever off the connecting link.



Do not bend the lever arm.



Do not push the lever arm forwards or backwards.

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Technical Information

1

Carefully press the connecting link  Correct the
installation position -2- of the level sensor off the ball
joint Correct the installation position -3- on the
trailing arm using the disassembly tool VAS 6933 Disassembly tool.

2

Check the ball socket of the connecting link 
Correct the installation position -2- for damage.
If the connecting link is damaged, the relevant
level sensor must be replaced  Technical Information 'WE8300 Replacing the front level sensor(s)'.

3

Correct the installation position
Place the lever arm  Correct the installation
position -1- in the correct installation position, so that the lever arm faces outwards towards the
front wheel.

4

Carefully push the connecting link  Correct the installation position -2- onto the ball head
Correct the installation position -3-, until the connecting link is felt to engage.

5

Read out and erase the fault memory  Technical Information 'WE8300 Reading out and erasing the
fault memory'.

Replacing the front level sensor(s)
Parts Info:

ALL PARTS AND MATERIALS SHOULD BE ORDERED VIA A PTEC/PAV.
NOTE: Parts allocation to PCNA for Scopes 3 & 4 is based upon an extremely low failure rate being experienced in rest-of-world. PLEASE BE CONSERVATIVE IN ORDERING PARTS AS THEY WILL REMAIN
IN EXTREMELY SHORT SUPPLY THROUGHOUT THE DURATION OF THIS CAMPAIGN. Any parts or
materials required for Scopes 3 and 4 should be ordered via a PTEC/PAV.
Part No.

Designation
– Location

Qty.

918.343.021.00

 Left level control sensor

1 ea.

 Right level control sensor

1 ea.

and/or
918.343.022.00

The following parts are additionally required for each level sensor to be replaced:
N 105.447.03

Tools:

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•

2 ea.

 Cheese head bolt, M6 x 10
– Level sensor to body

9768 - Electronic torque wrench, 2 - 100 Nm/1.5 - 74 ftlb.

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Technical Information
•
•
•

Work Procedure: 1

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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.)
9818 - PIWIS Tester II
Battery Charger/Power Supply - Suitable for lithium ion type batteries, recommended current
rating of 70A fixed voltage 13.8V. Refer to Equipment Information EQ-1105.
Remove the center part of the wheel housing liner on the affected side of the vehicle  Workshop
Manual '50561903 Removing and installing front wheel housing liner (centre part)'.

2

Remove the trim panel at the front right and – if affected – left  Workshop Manual '700219
Removing and reinstalling front trim panel'.

3

Replace the front level sensor on the affected side of the vehicle  Workshop Manual '431855
Replacing front level sensor'.
Information
The lever arm of the level sensor must face towards the front wheel when installed. It must be
ensured that the level sensor is fitted with the swivel area of the lever towards the outside of the
vehicle.

4

If previously removed, install the front left trim panel  Workshop Manual '700219 Removing and
installing front trim panel'.

5

Install the center part of the wheel housing liner  Workshop Manual '50561903 Removing and
installing front wheel housing liner (centre part)'.

6

Read out and erase the fault memory.
Then use the PIWIS Tester to calibrate the level sensors.

Reading out and erasing fault memories
Work Procedure: 1

2

Remove the front right trim panel  Workshop Manual '700219 Removing and installing the front
trim panel'.
Connect the Schumacher INC-700A to the jump-start terminals in the luggage compartment, set the
charger to "Flash Reprogram" and adjust the charging voltage to 13.8V.  Installation position of
external power connection.

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Technical Information

For further details, see  Workshop Manual '9X00IN
Battery trickle charging'.
3

9818 - PIWIS Tester II must be connected to the
vehicle communication module (VCI) via the USB
cable. Then connect the communication module
to the vehicle and switch on the PIWIS Tester.

4

Switch on ignition.

5

On the start screen of the PIWIS Tester, call up the 
'Diagnostics'  'Other models' menu and select
vehicle type  '918 Spyder'.
The diagnostic application then starts and the control
unit selection screen is populated.

6

Read out and erase fault memories.
Installation position of external
power connection
6.1

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

6.2

When the question “Create Vehicle Analysis
Log (VAL)?” appears, either press •F12“ to
create a VAL or press •F11“ if you do not
want to create a VAL.

6.3

Press •>>“ to acknowledge the message
that may appear informing you that
campaigns for the vehicle are stored in the
PIWIS information system.

6.4

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Control unit selection

Select the function  'Read all fault memories and erase if required' and press •>>“
to confirm  Erasing fault memories.

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The fault memories of the control units are
read out.
6.5

Once you have read out the fault memories,
delete the fault memory entries by pressing
•F8“.

6.6

Press •>>“ (“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.

Erasing fault memories

Information
If the fault memories of individual control units cannot be erased, steps 7 and 8 must first
be carried out and the fault memories of these control units must then be erased separately
before starting to locate and correct faults.
7

Select the  'Overview' menu on the PIWIS Tester and press •>“ to confirm your selection  Control unit
selection - PASM.

2

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

Control unit selection - PASM
3

Select the  'Calibration' function and confirm your
selection by pressing •>>“ 'Calibration' function.

4

Note the preconditions displayed and start the calibration process by pressing •F8“.

5

If the error message "Calibration failed" appears,
confirm the correct installation of the level sensors
with •F8“ in order to start calibration again
 Starting calibration.
'Calibration' function
Following successful calibration, the message
"Calibration complete" is displayed on the PIWIS
Tester's screen and a tick appears in the 'Status'
field  Calibration successful.
If the calibration process has not been successfully
performed, the process must be repeated.

Starting calibration

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Calibration successful
6

Complete calibration by pressing •F12“.

7

Select the  'Overview' menu on the PIWIS Tester and press •