Service

Technical Information

112/25 ENU

6128

6

Targa Roof Convertible Top Cover Damaged at the Rear Outer Corner (112/25)
Vehicle Type:

911 Targa 4 (992)
911 Targa 4S (992)
911 Targa 4 GTS (992)

Model Year:

As of 2021

Concerns:

Convertible top cover

Information:

The customer is complaining about damage to the
convertible top cover on the Targa roof at the rear outer
corner. ⇒ Damage to convertible top cover (example
shown)

Damage to convertible top
cover (example shown)
Cause:

In rare cases, contact between the door window pane and the convertible top cover can occur during the
opening and closing process of the vehicle door due to a low level of the convertible top (Targa roof).
In addition, a door window pane that is not optimally adjusted can also lead to the above-mentioned
complaint.

Action:

In the event of a customer complaint and before replacing the convertible top cover, check the position of
the convertible top (Targa roof) and the setting of the affected door window pane at the front and adjust it if
necessary.

Required tools
Tools:

•

•
•

Battery charger with a current rating of at least 90 A and a current and voltage-controlled charge map
for lithium starter batteries, e.g., VAS 5908 - battery charger 90 A. For further information about the
battery chargers to be used, see the corresponding Workshop Manual. ⇒ Workshop Manual '270689
Charge battery and vehicle electrical system'
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. V.A.G 1783 - torque wrench, 2-10 Nm (1.5-7.5 ftlb.)

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Service

Technical Information

ENU 112/25

6128
•
•
•

Torque wrench, 6-50 Nm (4.5-37 ftlb.), e.g. V.A.G 1331A - torque spanner, 6-50 Nm (4.5-37 ftlb.)
Plastic wedge, commercially available
Feeler gauge, e.g., P213b - Feeler gauge

Checking position of convertible top (Targa roof)
Work Procedure: 1
2

If required: Move the convertible top (Targa roof) to the closed position.

Þ Test area for position of convertible top (Targa roof)
Check the position of convertible top (Targa roof) ⇒
Þ Test area for position of convertible top (Targa
relative to Targa bracket trim -1- for Targa bar trim ⇒
Þ Test area for position of convertible top
roof) relative to Targa bracket trim -2- in middle of vehicle ⇒
(Targa roof) relative to Targa bracket trim -Circle-.

Test area for position of convertible top (Targa roof) relative to Targa bracket trim
Assessment
( )

✗)
(✗

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Þ Test area
Convertible top (Targa roof) ⇒
for position of convertible top (Targa
roof) relative to Targa bracket trim -1- is
Þ Test area for
flush with Targa bar trim ⇒
position of convertible top (Targa roof)
relative to Targa bracket trim -2-.
Þ Test area
Convertible top (Targa roof) ⇒
for position of convertible top (Targa

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Action
Position of convertible top (Targa roof) OK.
Continue by setting the door window pane and
replacing the convertible top cover.
⇒ Technical Information '270689 Adjusting door
window pane'
Position of convertible top (Targa roof) not OK.

Service

Technical Information

112/25 ENU

roof) relative to Targa bracket trim -1- is
Þ Test area for
lower than Targa bar trim ⇒
position of convertible top (Targa roof)
relative to Targa bracket trim -2-.

6128

6

Continue by setting the position of the convertible
top (Targa roof).
⇒ Technical Information '270689 Adjusting
position of convertible top (Targa roof)'

Adjusting position of convertible top (Targa roof)
Work Procedure: 1
2

Move the convertible top (Targa roof) to the half-open position.
Adjust the convertible top (Targa roof).
2.1

Þ Stop screw for convertible
Make marking ⇒
top (Targa roof) -1- on stop screw securing
Þ Stop screw for
convertible top (Targa roof) ⇒
convertible top (Targa roof) -2-.

2.2

Þ Stop screw for convertible
Loosen lock nut ⇒
top (Targa roof) -3-.

2.3

Unscrew the stop screw for the convertible top
Þ Stop screw for convertible top
(Targa roof) ⇒
(Targa roof) -2- by 2 turns.
This lifts the rear part of the convertible top
(Targa roof).

2.4

Þ Stop screw for convertible
Tighten lock nut ⇒
top (Targa roof) -3- at Tightening torque 8 Nm
(5.9 ftlb.).
Make sure that the position of convertible
Þ Stop screw for
top stop screw (Targa roof) ⇒
convertible top (Targa roof) -2- does not change.

2.5
3

Stop screw for convertible top (Targa roof)

Repeat action steps 2.1 to 2.4 on the opposite side.

Þ Main control arm trim -1- on the left and right by loosening and
Remove main control arm trim ⇒
Þ Main control arm trim -2- on both sides of the vehicle.
unscrewing screws ⇒

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Service

Technical Information

ENU 112/25

6128

Main control arm trim

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4

Move the convertible top (Targa roof) to the closed position.

5

Þ Vacuum lock stop screw -1- and vacuum
Measure distance/air clearance between main control arm ⇒
Þ Vacuum lock stop screw -2- on both sides of the vehicle using a feeler gauge.
lock stop screw ⇒

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Service

Technical Information

112/25 ENU

6128

6

Vacuum lock stop screw
Assessment
( )

Distance/air clearance is less than or
equal to 0.3 mm on both sides.

Action
Distance/air clearance between main control arm
and vacuum lock stop screw OK.
Continue with Step ⇒ 7.

✗)
(✗

Distance/air clearance is greater than
0.3 mm on one or both sides.

Distance/air clearance between main control arm
and vacuum lock stop screw not OK.
Continue with Step ⇒ 6.

6

Only if required: Adjust the vacuum lock stop screw.
6.1

Þ Vacuum lock stop screw -3- on the affected side of the vehicle.
Loosen lock nut ⇒

6.2

Þ Vacuum lock stop
Adjust distance/air clearance by twisting the vacuum lock stop screw ⇒
screw -2- to the target dimension between 0.0 mm and 0.3 mm using a feeler gauge.

6.3

Þ Vacuum lock stop screw -3- at Tightening torque 2.5 Nm (1.8 ftlb.).
Tighten lock nut ⇒
Þ Vacuum lock stop screw -2- does not
Make sure that the position of vacuum lock stop screw ⇒
change.

6.4

If required: Repeat action steps 5.2 to 5.4 on the opposite side.

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Technical Information

ENU 112/25

6128

6.5

Move the convertible top (Targa roof) to the half-open position.
During the movement process of the convertible top (Targa roof), interrupt it several times and
Þ Vacuum lock stop screw -1check whether there is the distance between main control arm ⇒
Þ Vacuum lock stop screw -2- is always at least 2 mm.
and stop screw cap ⇒
If this is not the case, repeat the vacuum lock setting.

7

Þ Main control arm trim -1- on the left and right at the main control arm,
Position main control arm trim ⇒
Þ Main control arm trim -2- and tighten them to Tightening torque 3 Nm
attach and tighten screws ⇒
(2.2 ftlb.) .

Main control arm trim
8

Check the position of the convertible top (Targa roof) again.

⇒ Technical Information '270689 Checking position of convertible top (Targa roof)'

Adjusting door window pane and replacing convertible top cover
Work Procedure: 1

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Adjust the door window pane on the affected side of the vehicle and then teach the end positions of the
door window pane.
⇒ Workshop Manual '644015A1 Adjusting door window pane'

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Service

Technical Information

112/25 ENU

6128

6

Information
Once the correct position of the convertible top (targa roof) and proper adjustment of the affected door
window pane are ensured, the damaged convertible top cover can be replaced.
This is the only way to ensure that damage does not occur again.
In the course of removing the convertible top cover, the
rear seal must be checked and also replaced if there
is any damage or deformation. ⇒ Deformation at rear
seal (example shown)
2

Remove and replace the damaged convertible top
cover.
⇒ Workshop Manual '61281910 Removing and
installing convertible top cover'

Deformation at rear seal (example shown)

Labor position and PCSS encryption
Labor position:
APOS

Labor operation

I No.

61010140

Checking position of convertible top (Targa roof)

61011540

Adjusting position of convertible top (Targa roof)

61011541

Adjusting position of convertible top (Targa roof)

64401551

Adjusting left front door window pane

64401552

Adjusting right front door window pane
PCSS encryption:

Location (FES5)

64400

Front door window pane

Damage type (SA4)

1024

Coming up

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.

© 2026 Porsche Cars North America, Inc.

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