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NHTSA ID Number: 11005604

Manufacturer Communication Number: No. 13-23

TSB/Document Date: 2024-08-05


Summary

Installation and conversion instructions for the Cayman GT4 Manthey Kit - retrofitting


9

Tequipment

Jul 3, 2024
Page 5 of 18

0

Cayman (982)
0913

ENU

5

13/23

Installation and Conversion Instructions

Installing the gurney (separation edge)
1
5.1

– gurney (separation edge) - 982.044.806.70
Thoroughly clean the adhesive surfaces on
the rear wing with isopropanol (alcohol). The
adhesive surfaces must be free from dust,
dirt and grease of any kind.

10
5.2

Loosen a piece of the backing sheet  11 -1(similar to illustration) from the adhesive strip
on the gurney (separation edge)  11 -2-.

11
5.3

Align and position gurney (separation edge)
 12 -1-.

12

Jul 3, 2024
Page 6 of 18

Tequipment

Installation and Conversion Instructions
5.4

Cayman (982)
13/23

ENU

0913

0

Slowly pull out the backing sheet  13 -3and press gurney firmly into place (separation
edge)  13 -1-.
Press gurney (separation edge)  13 -1- flat
onto the rear spoiler (wing)  13 -2- for at
least 10 seconds.
Use only the pre-affixed double-sided
adhesive tape.

13
6

Mounting the air control elements on the underbody
Set
1
2
3
4
6.1

– Air control elements incl. fastening material
- 982.044.806.77
– Air-guide element, left - 9GT.807.945
– Air-guide element, right - 9GT.807.945.B
– Screws
– Clamping nuts
Remove front cover (fin).  Workshop
Manual '519219 Removing and installing
front cover (fin)'
The standard front covers (fins) are no longer
required.

6.2

Unscrew both screws  15 -1-.

6.3

Install air-guide element  16 -2- and screw
in and tighten screws  16 -3-. Tightening
torque 3.2 Nm (2.4 ftlb.)

14

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Cayman (982)
0913

ENU

6.4

7

Installation and Conversion Instructions

13/23

Screw in and tighten additional screws in the
sheet metal nuts  16 -1- (similar to illustration). Tightening torque 3.2 Nm (2.4
ftlb.)

Installation of rear-axle tie rod

16
Do not re-install wheels!
1
7.1

– Rear-axle tie rod - 982.044.806.76
Remove standard tie rod.  Workshop
Manual '420919 Removing and installing
steering tie rod'

17

8

7.2

Turn tie rod  18 -1- as far as possible into
the inner swivel head  18 -2-.

7.3

Install new tie rod.  Workshop Manual
'420919 Removing and installing steering tie
rod'

Installing front axle camber adjusting shims
Front axle camber adjusting shims (3 mm) 996.341.543.92
Do not re-install wheels!

Jul 3, 2024
Page 8 of 18

8.1

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

8.2

Loosen nuts  19 -3-.
The nuts do not have to be completely unscrewed.

Tequipment

18

Installation and Conversion Instructions
8.3

Pull the control arm  19 -1- outwards and
remove all adjusting shims  19 -2-.

8.4

Pull control arm  20 -2- outwards and push
in the new adjusting shims  20 -3- between
the fixed bearing and mounting plate.

8.5

Tighten nuts  20 -1-.

Cayman (982)
13/23

ENU

0913

0

19
Tightening torque 25 Nm (18.4 ftlb.)
9

Chassis assembly
All four wheels can be removed as described in
the Chassis section.

20
WARNING
Preloaded or pressurized components

Risk of squashing or bruising

Do not reach into the danger area.

Relieve tension on components before starting work.

Secure components to prevent them from becoming detached suddenly.

Tequipment

Jul 3, 2024
Page 9 of 18

0

Cayman (982)
0913

ENU

Installation and Conversion Instructions

13/23

Kit
1
2
3
4
5
6
7
9.1








21
4 dampers/springs/strut bearings including PASM deactivation kit - 982.044.806.73
Front axle spring strut - 982.044.806.74
Front axle adjusting tool
Rear axle spring strut - 982.044.806.75
Adjusting tool for rear axle
PASM deactivation kit
Front expansion tank assembly kit
Rear expansion tank assembly kit

Front spring strut
Do not re-install the cover.
9.1.1

Jul 3, 2024
Page 10 of 18

Remove the old spring strut and install new spring strut.  Workshop Manual
'440519 Removing and installing front spring strut'
First guide the expansion tank through the opening in the boot and secure
it.

Tequipment

Installation and Conversion Instructions

Cayman (982)
13/23

ENU

0913

0

Adjust the support bearing  22
-1- to maximum camber and tighten
the nuts  22 -2-.
Tightening torque 33 Nm (24.3
ftlb.)

22
Adjust the camber adjusting plate
 23 -1- on the upper bracket to
the third marking, based on the
center position  23 -2-, in the
direction of the outer stop  23 -3and tighten screws  23 -4-.
Tightening torque 25 Nm (18.4
ftlb.)

23

9.2

9.1.2

Pre-set chassis height on
front spring strut  24 -1- for
suspension alignment.
The dimension  24 -A- must be
33 mm from the lower edge of the
lower spring seat  24 -2- to the
upper edge of the wheel carriereBay logo
24 -3-.

9.1.3

Front axle damper setting:
Traction stage (bottom of damper black): Position 9
LowSpeed pressure stage (on
24
expansion tank - black): Position 8
HighSpeed pressure stage (on expansion tank - gold): Position 8

Installing front expansion tank
9.2.1

Mounting front right expansion tank

Tequipment

Jul 3, 2024
Page 11 of 18

0

Cayman (982)
0913

ENU

13/23

Installation and Conversion Instructions

9.2.2

Unscrew front screw  25 -2- from air inlet housing. And remove air quality
sensor from air inlet housing.

9.2.3

Install holder  25 -1- with new
screw  25 -2- onto screw point
on air inlet housing interior.

25
9.2.4

Secure the passenger side
expansion tank  26 -1- to holder
with tie-wraps  26 -2-.
Ensure the line is not twisted or
under strain.

9.2.5

Secure the driver side expansion
tank  27 -1- to wiring harness 
27 -2- using tie-wraps  27 -3-.

26
Ensure the line is not twisted or
under strain.
9.3

Remove old rear spring strut and install
new rear spring strut.  Workshop Manual
'440519 Removing and installing rear spring
strut'
First guide the expansion tank through
the opening in the boot and secure it.

27

Jul 3, 2024
Page 12 of 18

Tequipment

Installation and Conversion Instructions

Cayman (982)
13/23

ENU

0913

123

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TSB/Document ID: No. 13-23

Replacement Service Bulletin Number:

MFR Communication Date: 2024-07-03

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: UNKNOWN OR OTHER

MFR Component System:

MFR Component Subsystem:


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