122-M7J7N-04

Service
Technical Information
14/16
ENU
1955
1
Eliminating Symptoms - Engine: Reworking Coolant Pipe (Loss of Coolant at the Coolant
Pipe/SY14/16)
General information
Change overview
Version
Date
Change
0
05/25/2016
First publication
1
03/04/2020
•
•
•
SY extended for 911 Carrera (991) MY 2017 - 2019
Part No. for external hexagon round-head bolt was replaced
Information on new type of coolant pipe
Symptom:
Customer complaint about loss of coolant, visible on the underside of the engine/where the vehicle was
parked. Sometimes a yellow warning comes on in the instrument cluster with the information message
"Refill coolant Be careful of engine temperature".
Model Year:
As of 2014 up to 2019
Cause:
Component tolerances between the coolant pipe flange and distributor housing can cause leaks.
Remedial
Action:
In the event of a customer complaint, install additional "water tube retaining bar".
Information
If Part No. 0PB121076 water tube is already installed in the affected vehicle, this SY is not relevant for
this vehicle.
Parts Info:
9A1.106.338.00 NEW Water tube retaining bar
9A700812900 External hexagon round-head bolt (3 ea. required - M6 x 35)
Tools:
Torque wrench, 6 - 50 Nm (4.5 - 37 ftlb.), e.g. Torque wrench, 6-50 Nm (4.5-37 ftlb.), (Locally
Available)
Work Procedure: 1 Remove cover for rear underbody.  Workshop Manual 'Removing and installing cover for rear
underbody'
WARNING
Hot fluid
•
Danger of scalding

Let the fluid cool down.
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Mar 20, 2020
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
Service
1955
ENU
Technical Information
14/16
Wear personal protective gear.
WARNING
Caustic fluids
•
Danger of chemical burns

Wear personal protective gear.

Ensure that there is good ventilation.

Avoid contact with caustic fluid.

If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if
necessary.
Information
The coolant does not need to be drained in order to carry out this work as the coolant pipe is not
removed and the cooling system is not opened.
2
Unscrew screws  Coolant pipe on coolant regulator housing -1- on the coolant regulator housing
 Coolant pipe on coolant regulator housing -3-.
Coolant pipe on coolant regulator housing
3
Mar 20, 2020
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Clean sealing surface for water tube retaining bar on the flange thoroughly with a cloth.
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Service
Technical Information
14/16
4
Install water tube retaining bar  Installing water
tube retaining bar -1-, Part No.: 9A110633800,
using new longer screws (M6 x 35), Part No.:
9A700812900.
5
Tighten screws  Screwing in screws -2 to 4in the sequence  Screwing in screws -2, 3, 4-.
Tightening torque 13 Nm (9.5 ftlb.)
6
Re-tighten screws  Screwing in screws -2 to 4again in the same sequence.  Tightening torque
13 Nm (9.5 ftlb.)
ENU
1955
1
Installing water tube retaining bar
Screwing in screws
7
Install cover for rear underbody.  Workshop Manual 'Removing and installing cover for rear
underbody'
Information
•
8
Invoicing:
Check the engine coolant level and only add coolant if necessary.
Check engine coolant level and add coolant if necessary.  Workshop Manual 'Filling coolant'
The work involved is invoiced under the labor operation:
I No.
APOS
Labor operation
19554900
Reworking coolant regulator housing
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Mar 20, 2020
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Service
1955
ENU
Technical Information
14/16
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
19550
Coolant regulator housing
Damage type (SA4)
5014
Coolant leak
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.
© 2020 Porsche Cars North America, Inc.
Mar 20, 2020
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