No. 112-25 Service Bulletin/Repair Instructions

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.)
AfterSales
Jan 16, 2026

Page 1 of 7
6
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

( )
✗)

(✗
Jan 16, 2026

Page 2 of 7
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
AfterSales
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 ⇒
AfterSales
Jan 16, 2026

Page 3 of 7
6
Service
Technical Information
ENU 112/25
6128
Main control arm trim
Jan 16, 2026

Page 4 of 7
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 ⇒
AfterSales
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.
AfterSales
Jan 16, 2026

Page 5 of 7
6
Service
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
Jan 16, 2026

Page 6 of 7
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'
AfterSales
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.
AfterSales
Jan 16, 2026

Page 7 of 7

Bestseller No. 1

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD2 Protocol Vehicle (Black)

CEL Doctor: The ANCEL AD310 is one of the best-selling OBD II scanners on the market and is recommended by Scotty Kilmer, a YouTuber and auto mechanic. It can easily determine the cause of the check engine light coming on. After repairing the vehicle's problems, it can quickly read and clear diagnostic trouble codes of emission system, read live data & hard memory data, view freeze frame, I/M monitor readiness and collect vehicle information.
Sturdy and Compact: Equipped with a 2.5 foot cable made of very thick, flexible insulation. It is important to have a sturdy scanner as it can easily fall to the ground when working in a car. The AD310 OBD2 scanner is a well-constructed mechanic tool with a sleek design. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. Thanks to its compact design and light weight, transporting the device is not a problem. The buttons are clearly labelled and the screen is large and displays results clearly.
Accurate Fast and Easy to Use: The AD310 scanner can help you or your mechanic understand if your car is in good condition, provides exceptionally accurate and fast results, reads and clears engine trouble emission codes in seconds after you fixed the problem. This device will let you know immediately and fix the problem right away without any car knowledge. No need for batteries or a charger, get power directly from the OBDII Data Link Connector in your vehicle.
OBDII Protocols and Car Compatibility: Many cheap scan tools do not really support all OBD2 protocols. AD310 scanner as it can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This device also has extensive vehicle compatibility with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Pls confirm with our customer service whether it is compatible with your vehicle before purchasing.
Home Necessity and Worthy to Own: This is an excellent code reader to travel or home with as it weighs less and it is compact in design. You can easily slide it in your backpack as you head to the garage, or put it on the dashboard, this will be a great fit for you. The AD310 is not only portable, but also accurate and fast in performance. Moreover, it covers various car brands and is suitable for people who just need a code reader to check their car.

Bestseller No. 2

MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow

Multi-Functions - Practical Multi-Functions OBD2 code reader features built-in OBD2 DTC lookup library, which help you to determine the cause of the engine light, read code, erase code, view freeze frame, I/M ready, vehicle information, data flow, real-time curve, get vehicle speed information, calculate load value, engine coolant temperature, get engine speed.
Wide Capability - Supports 9 protocols compatible with most 1996 US-Based, 2000 EU-Based and Asian cars, and newer OBD II & CAN domestic or import vehicles. Supports 6 languages - English,German, Dutch, Spanish, French, Italian.
2.8" LCD Display - Designed with a clear display 2.8" Large LCD screen - white backlight and contrast adjustment. No need any battery or charger, OBD reader gets the power directly from your vehicle through the OBDII Data Link Connector.
Compact Design - Car diagnostic scanner is equipped with a 2.5 feet long cable and made of a very thick flexible insulator.There are 6 buttons on OBD2 Scanner:scroll up/down,enter/exit and buttons that quick query VIN vehicle number& the DTC fault code.
ABS / Airbag codes NOT Supported - It is able to read and clear check engine information which is part of OBDII system, but it cannot work with non-OBDII systems, including ABS / Airbag / Oil Service Light, etc.

Bestseller No. 3

FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light

【Your Personal CEL Doctor – Read & Clear Engine Codes】The NT301 OBD2 scanner lets you read diagnostic trouble codes (DTCs), check em-issions readiness, turn off your Check Engine Light (CEL) or MIL, reset monitors, and view live data streams. It retrieves your vehicle's VIN instantly. Like all standard OBD2 scanners, it clears codes only after repairs are completed—if the issue persists, the code will return. Designed for DIYers who want to understand what’s really going on under the hood.
【Easy Code Reading – Just Plug & Play】Simply plug into the OBD2 port, turn the ignition to “ON” (engine off), and select the correct menu: Select OBDII-> Wait for seconds-> Select Read codes. For accurate results, ensure your vehicle is compatible and the OBD2 port is free from damage or wiring issues. No batteries needed— powered directly by your car.
【Live Data Graphing & Accuracy for Most OBD2 Vehicles】View and log live sensor data in graph form—monitor oxygen sensors, fuel trims, coolant temp, RPM, and more. Spot trends and suspicious values in real time. Compatible with most 1996+ gasoline cars, light trucks, and SUVs sold in the U.S., as well as many 2000+ European and Asian models. Also works on 12V diesel vehicles equipped with OBD2.
【S-mog Check Helper – Know Your Readiness Status at a Glance】With dedicated I/M readiness hotkeys and a simple Red-Yellow-Green LED indicator, you’ll instantly know if your vehicle is ready for em-issions testing. Built-in speaker provides audio feedback. No guesswork—just confidence before you head to the test center.
【A Must-Have Tool for Every Home Mechanic】Compact, rugged, and ready to use right out of the box. The 2.8” color screen is easy to read, even in daylight. No charging or setup required—just plug into the 16-pin DLC and start diagnosing. Recommended by professional mechanics on YouTube and trusted by DIYers worldwide.

Last update on 2026-03-23 / Affiliate links / Images from Amazon Product Advertising API

This product presentation was made with AAWP plugin.

Buffer Copy Email Facebook Flipboard Hacker News LinkedIn Messenger Mix Pinterest Print Reddit SMS Telegram Tumblr X VK WhatsApp Line Xing Threads