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Technical Information

64/14 ENU

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WE40 - Checking Spring Struts for Front and Rear Axle and Replacing Them if Necessary
(Workshop Campaign)
Model Line:

918 Spyder

Model Year:

2015

Concerns:

Spring struts for front and rear axle

Information:

This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. Internal
quality checks have shown that front-axle and rear-axle spring struts with shock absorbers
from a batch in which an O-ring on the shock absorber might be damaged were installed on
some vehicles.
This can result in a loss of pressure in the gas-filled shock absorber over the service life of the vehicle and
can cause rumbling noises when driving on uneven road surfaces.

Action
Required:

Check batch number of the spring struts for front and rear axle and replace spring struts if necessary.

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 four vehicles in North America:
WP0CA2A11FS800039
WP0CA2A10FS800145
WP0CA2A17FS800711
WP0CA2A14FS800911

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Installation
Position:

Overview of spring struts
Work
Procedure:

See Attachment “A”.

Claim
Submission:

See Attachment “B”.

Checking batch numbers of the spring struts for front and rear axle
Tools:

•
•
•
•
•

9002 - Lifting platform holders
9453 - Access ramps
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.)
Suitable inspection mirror
Shop light

Attachment "A": Work Procedure
1

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

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1.1

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

1.2

Remove covers on the underbody 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.

Information
The batch numbers must be checked on all spring struts for the front and rear axle.
The procedure for checking one spring strut is described below as an example.
The wheels do not have to be removed in order to check the spring struts.
2

Read off and check the batch number of the spring struts for the front and rear axle.
To do this, guide the inspection mirror and hand lamp
into the relevant wheel housing through the open area
between the wheel and underbody from below as
far as the damper foot  Checking batch numbers
-3- of the front-axle spring struts Checking
batch numbers -1- and rear-axle spring struts
Checking batch numbers -2-.
Information
The batch number can be found on the damper foot
of the spring struts, close to the threaded joint for the
shock absorber pipe.
The first five digits of the bottom line on the spring
strut are important here.
•

3

The batch number  Checking batch
numbers -arrow- of all four spring struts is
14125 or higher  continue with Step 3.

Checking batch numbers

•

If the batch number  Checking batch numbers -arrow- of one spring strut is lower than
14125, the spring strut in question must be replaced;  Technical Information 'WE4000
Preliminary work for removing spring struts'.

•

If there is no batch number on the spring strut, the spring strut in question must also be
replaced  Technical Information 'WE4000 Preliminary work for replacing spring struts'.

Lower the vehicle and remove it from the lifting platform  Workshop Manual '4X00IN Lifting the
vehicle'.
3.1

Lower the vehicle onto the 9453 - access ramps with the lifting platform.

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

Enter the workshop campaign in the Warranty and Maintenance booklet  End of action required.

Preliminary work for replacing spring struts
Tools:

•
•

9453 - Access ramps
A suitable measuring tool for measuring vehicle height, e.g. 300-mm steel rule

Attachment "A": Work Procedure
1

First remove the vehicle from the lifting platform using the 9453 - access ramps and move it onto a
measuring platform.
Do not remove the lifting platform holders on the underbody.

2

Measure the vehicle height and wheel loads of all wheels and take note of the values.
For information on how to do this, see  Workshop Manual '449503 Suspension alignment,
complete'.

3

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

4

Replace the relevant front-axle and/or rear-axle spring struts with a batch number lower than
14125 or with no batch number.
For information on how to do this, see:
•
•

Replace spring strut for front axle  Technical Information 'WE4000 Replacing spring strut for
front axle'.
Replace spring strut for rear axle  Technical Information 'WE4000 Replacing spring strut for
rear axle'.

Replacing spring strut for front axle
Parts Info:

NOTE: PARTS WILL NOT BE AUTOMATICALLY ALLOCATED TO YOUR DEALERSHIP. ALL PARTS
MUST BE ORDERED VIA A PTEC/PAV.
Information
The parts to be used depend on the vehicle equipment front axle lift system (I-no. 474) and
Racetrack package (I-no. 808).
Depending on whether or not this optional equipment is installed and the number of spring struts
affected, the relevant parts must be used for each vehicle.
•

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Vehicles with lift system (I-no. 474):

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Part No.

Designation
– Location

Qty.

918.343.057.05

 Left spring strut, complete - front axle
Vehicles with lift system (I-no. 474)

1 ea.*

 Right spring strut, complete - front axle
Vehicles with lift system (I-no. 474)

1 ea.*

4

and/or
918.343.058.05

or
Vehicles without lift system:

•

Part No.

Designation
– Location

Qty.

918.343.057.04

 Left spring strut, complete - front axle

1 ea.*

 Right spring strut, complete - front axle

1 ea.*

and/or
918.343.058.04

* The spring struts for the front axle depend on the vehicle equipment (with/without lift system, I-no.
474). The relevant left and/or right spring strut must be ordered, depending on the number of spring
struts affected.
The following parts will also be required for each spring strut to be replaced:
Vehicles with Racetrack package (I-no. 808):

•

Part No.

Designation
– Location

Qty.

999.311.606.02

 Fit bolt, M10 x 1.5 x 72
– Front-axle spring strut to lower trailing arm

1 ea.

999.311.605.02

 Fit bolt, M10 x 52
– Front-axle spring strut to upper mounting saddle

1 ea.

999.084.656.01

 Hexagon nut, M10
– Front-axle spring strut mounting

2 ea.

or

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Vehicles without Racetrack package:

•

Tools:

Technical Information

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Part No.

Designation
– Location

Qty.

999.311.606.01

 Fit bolt, M10 x 1.5 x 72
– Front-axle spring strut to lower trailing arm

1 ea.

999.311.605.01

 Fit bolt, M10 x 52
– Front-axle spring strut to upper mounting saddle

1 ea.

999.084.656.01

 Hexagon nut, M10
– Front-axle spring strut mounting

2 ea.

•
•
•
•
•
•
•
•
•

9003 - Socket wrench for central wheel lock
9004 - Socket wrench for central wheel lock cover
Insert for 9647 - hook wrench
Hook wrench for chassis adjustment
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.)
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, 40 – 200 Nm (30 – 148 ftlb.), e.g. V.A.G 1332 - Torque wrench, 40-200 Nm
(30-148 ftlb.)
VAS 6935 - Pole terminal puller
A suitable measuring tool for measuring height adjustment on the spring strut, e.g. 300-mm steel
rule

Also required only for vehicles with front axle lift system (I-no. 474):
•

Open-jawed wrench insert or open ring wrench insert (a/f 12) for torque wrench

Attachment "A": Work Procedure
1

Remove wiper arm  Workshop Manual '922519 Removing and installing wiper arm'.

2

Remove front trim panel  Workshop Manual '700219 Removing and installing front trim panel'.

3

Remove cowl panel cover  Workshop Manual '664419 Removing and installing cowl panel cover'.

NOTICE
Removing/fitting wheels
•

Risk of damage to (ceramic) brake discs



Carefully guide the wheel towards the wheel hub, thereby preventing any heavy impact on the
(ceramic) brake disc.