Service

Technical Information

147/17 ENU

1950

1

Complaint - Warning "Engine Too Hot" and/or Coolant Leak in Coolant Pump Area:
Checking Vacuum Lines and Valve Block (147/17)
Revision:

This bulletin replaces bulletin Group 1, 147/17, dated June 29, 2020.

Model Year:

As of 2017

Model Line:

718 Boxster/Cayman (982)
911 (991) / 911 (992)

Subject:

Coolant pump

Information:

The coolant pump can leak into the vacuum area.
The warning "Engine too hot" can also be displayed in the instrument cluster in some cases.
In the event of a complaint about coolant loss and if the fault diagnosis indicates a leak in the coolant
pump, all vacuum lines for the coolant pump must be checked for traces of coolant.
If traces of coolant are found in the vacuum lines:
 The affected vacuum lines together with the valve block must be replaced before doing any
other work.
•

If a vacuum line and/or valve block needs to be replaced:

 Check vacuum lines for traces of coolant.
 If traces of coolant are found, the coolant pump must also be replaced.
Invoicing:

For invoicing and documentation using PQIS, enter the following coding:

Location (FES5)

19500

Coolant pump

Damage type (SA4)

5014

coolant leak

References:

 Workshop Manual '242319 Removing and installing valve block'

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.

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Aug 19, 2024
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