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Service
Technical Information
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WG42 - Replacing Coolant Reservoir (Workshop Campaign)
Important:
Critical Warning — This campaign includes steps where control unit(s) in the vehicle will be
programmed with the PIWIS Tester. The vehicle voltage must be maintained between 13.5 volts and 14.5
volts during this programming. Failure to maintain this voltage could result in damaged control unit(s).
Damage caused by inadequate voltage during programming is not a warrantable defect. The technician
must verify the actual vehicle voltage in the PIWIS Tester before starting the campaign and also document
the actual voltage on the repair order. Please refer to Equipment Information EQ1401 for a list of suitable
battery chargers/power supplies which should be used to maintain vehicle voltage.
Model Year:
2017
Model line:
911 (991)
Subject:
Coolant reservoir
Issue:
There is a possibility that the float in the coolant reservoir can stick at the lowest position due to
unfavourable tolerances.
If this happens, the warning message "Refill coolant immediately! Do not drive on" will be activated in the
instrument cluster when the engine is at operating temperature.
Remedial
action:
Replace coolant reservoir.
Affected
Vehicles:
Only the vehicles assigned to the campaign (see also PIWIS Vehicle information). This campaign affects
2,668 vehicles in North America.
Required parts and materials
Part No.:
Part No.
Designation
– Use
Qty.
000 043 303 98
 Reservoir
– Cooling system
1 ea.
900 123 007 30
 Sealing ring, A14 x 18
– Coolant drain plug
2 ea.
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Materials:
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Part No.
Designation
– Use
Qty.
000 043 305 16
 Antifreeze, 20-litre container
– Cooling system
As much as required
(approx. 2 litres
required per vehicle)
000 043 205 93
 Klüberplus Gel grease
– O-rings, hoses
As much as required
(approx. 5 grams
required per vehicle)
Required tools
Tools:
•
•
•
•
•
•
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.)
Suitable pliers for spring band clamps, e.g. VAS 6856 - Spring band clamp pliers
9696 - Filling device
9696/1 - Cap
VAS 6096/2 - Vacuum pump
Preparatory work
Procedure:
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1
Raise the vehicle on a lifting platform  Workshop Manual '4X00IN Lifting the vehicle'.
2
Drain coolant at the engine  Workshop Manual '193817 Draining and filling coolant'.
3
Only for Cabriolet vehicles:
Move convertible top into service position  Workshop Manual '6101IN Convertible-top service
position (Cabriolet)'.
4
Remove engine-compartment blower  Workshop Manual '198119 Removing and installing enginecompartment blower'.
5
Remove both tail lights  Workshop Manual '943119 Removing and installing tail lights'.
6
Remove rear spoiler  Workshop Manual '665819 Removing and installing rear spoiler (Turbo)'.
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Remove sound channel  Sound channel for
acoustic simulator -3- with vacuum unit for acoustic
simulator.
7.1
Disconnect vacuum hose  Sound channel
for acoustic simulator -1- at the vacuum unit.
7.2
Release plug-in couplings  Sound channel
for acoustic simulator -2- and pull sound
channel off the connections.
7.3
Remove sound channel  Sound channel
for acoustic simulator -3- together with the
vacuum unit.
Sound channel for acoustic simulator
Replace coolant reservoir
Procedure:
1
Remove coolant reservoir  Workshop Manual '194019 Removing and installing reservoir'.
2
Remove bleeder valve from the new reservoir.
Information
The new coolant reservoir is supplied with a bleeder valve already fitted.
To prevent damage to the components during installation due to the tight installation space, the
bleeder valve must first be removed from the new reservoir and then fitted again after you have
installed the reservoir.
2.1
Loosen and unscrew fastening screw 
Bleeder valve mounting -2- for the bleeder
valve  Bleeder valve mounting -1-.
Bleeder valve mounting
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2.2
3
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Release locking lugs  Removing bleeder
valve -arrows- at the quick connector and
pull the bleeder valve  Removing bleeder
valve -1- off the reservoir.
Use a suitable tool  Removing bleeder valve
-2- to release the lower locking lug.
Install new coolant reservoir.
When doing so, make sure to fit the new bleeder
valve you removed earlier back on the reservoir.
For instructions, see  Workshop Manual '194019
Removing and installing reservoir'.
Removing bleeder valve
Concluding work
Procedure:
References:
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Install sound channel  Sound channel for acoustic
simulator -3- with vacuum unit for acoustic simulator.
1.1
Push on sound channel  Sound channel for
acoustic simulator -3- at the plug-in couplings
 Sound channel for acoustic simulator -2until they engage securely.
1.2
Fit vacuum hose  Sound channel for
acoustic simulator -1- as far as it will go on
the vacuum unit.
2
Install rear spoiler  Workshop Manual '665819
Removing and installing rear spoiler (Turbo)'.
3
Install both tail lights  Workshop Manual '943119 Removing and installing tail lights'.
4
Install engine-compartment blower  Workshop Manual '198119 Removing and installing enginecompartment blower'.
5
Fill and bleed the cooling system  Workshop Manual '193817 Draining and filling coolant'.
6
Only for Cabriolet vehicles:
Move convertible top out of service position.
 Workshop Manual '6101IN Convertible-top service position (Cabriolet)'
7
Remove the vehicle from the lifting platform.
8
Enter the campaign in the Warranty and Maintenance booklet.
Sound channel for acoustic simulator
 Workshop Manual '193817 Draining and filling coolant'
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 Workshop Manual '194019 Removing and installing reservoir'
 Workshop Manual '198119 Removing and installing engine-compartment blower'
 Workshop Manual '4X00IN Lifting the vehicle'
 Workshop Manual '6101IN Convertible-top service position (Cabriolet)'
 Workshop Manual '665819 Removing and installing rear spoiler (Turbo)'
 Workshop Manual '943119 Removing and installing tail light'
Warranty processing
Information
The specified working times were determined specifically for carrying out this campaign and include all
required preliminary and subsequent work.
The working times may differ from the working times published in the Labour Operation List in PIWIS.
Information:
Scope 1 – Scope 3: Not relevant for this vehicle type.
Scope 4:
Replace coolant reservoir
•
Only relevant for vehicles with body shape Coupé
Working time:
Labor time: 266 TU
Replacing coolant reservoir
Includes:
Raising and lowering the vehicle
Draining and filling coolant
Removing and installing engine-compartment blower
Removing and installing tail light at the left and right
Removing and installing rear spoiler
Removing and installing hose for acoustic simulator
Parts required:
000 043 303 98
Reservoir
1 ea.
900 123 007 30
Sealing ring, A14 x 18
2 ea.
000 043 305 16
Antifreeze (20-litre container)
0.1 ea.
(= approx. 2 litres)
000 043 205 93
Klüberplus Gel grease (100g tube)
0.05 ea.
(= approx. 5 g)
Required materials:
Invoicing:  Damage Code WG42 66 000, Repair Code 2
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ENU
Technical Information
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Replace coolant reservoir
•
Only relevant for vehicles with body shape Cabriolet
Working time:
Labor time: 272 TU
Replacing coolant reservoir
Includes:
Raising and lowering the vehicle
Moving convertible top into service position
Draining and filling coolant
Removing and installing engine-compartment blower
Removing and installing tail light at the left and right
Removing and installing rear spoiler
Removing and installing hose for acoustic simulator
Parts required:
000 043 303 98
Reservoir
1 ea.
900 123 007 30
Sealing ring, A14 x 18
2 ea.
000 043 305 16
Antifreeze (20-litre container)
0.1 ea.
(= approx. 2 litres)
000 043 205 93
Klüberplus Gel grease (100g tube)
0.05 ea.
(= approx. 5 g)
Required materials:
Invoicing:  Damage Code WG42 66 000, Repair Code 2
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. If a particular condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your authorized Porsche Dealer for the latest information
about whether a particular technical bulletin applies to your vehicle. Part numbers listed in these bulletins are for reference only. Always check with your authorized Porsche dealer to verify the current and
correct part numbers. 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.
© Porsche Cars North America, Inc.
Dealership
Distribution
Routing
Service Manager
_______
Shop Foreman
_______
Service Technician
________
_______
_______
_______
Asst. Manager
_______
Warranty Admin.
_______
Service Technician
________
_______
_______
_______
Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®,
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