# Service bulletin No. 72\-17

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10186302
- Published by NHTSA: 2021\-02\-01
- Manufacturer's number: No. 72\-17
- Manufacturer's date: 2021\-01\-08
- NHTSA component: EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

## NHTSA's summary

Instructions for reworking the fan motor in the event that the HVAC does not function.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186302-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186302-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Equipment and accessories, Cooling fan, Cooling system

## Vehicles listed

- 2016 PORSCHE 718 BOXSTER
- 2016 PORSCHE 718 CAYMAN
- 2012 to 2019 PORSCHE 911
- 2012 to 2015 PORSCHE BOXSTER
- 2012 to 2015 PORSCHE CAYMAN
- 2020 PORSCHE CAYMAN
- 2017 PORSCHE redundant BOXSTER
- 2020 to 2021 PORSCHE redundant BOXSTER
- 2021 PORSCHE redundant CAYMAN

## Other bulletins for the same vehicles and component

- [No. 2000](/bulletins/10176863.md), 2020-07-01, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; EQUIPMENT. Information on possible discoloration on the center radiator on the new Cayman GT4 and Boxster Spyder.
- [122\-N8Y2M\-06](/bulletins/10117450.md), 2017-09-14, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. Concerns: Vacuum lines for sound symposer Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. There is a possibility that the vacuum line on the change\-over valve for the sound symposer can slip off on the affected vehicles due to relative movements of the engine. As a result, there is no guarantee that the sound symposer and other vacuum\-controlled actuators on the engine will function correctly. This causes the warning message "Fault cooling system" to be displayed in the instrument cluster.
- [122\-Q4F2X\-06](/bulletins/10109317.md), 2017-08-01, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. Concerns: Relay for engine\-compartment blower Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. There is the possibility that the relay for setting 1 of the engine\-compartment blower is not inserted correctly in the relay carrier on the affected vehicles. If the relay is not inserted correctly, the function of setting 1 of the engine\-compartment blower cannot be guaranteed and the driver will see a warning to this effect in the multi\-function display. To remedy the situation, check that the engine\-compartment blower relay is seated correctly in the relay carrier.
- [122\-Q5Q9Z\-06](/bulletins/10109309.md), 2017-08-01, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. Concerns: Relay for engine\-compartment blower Situation: There is a possibility that the relay for setting 1 of the engine\-compartment blower is not inserted correctly in the relay carrier on the affected vehicles. If the relay is not inserted correctly, the function of setting 1 of the engine\-compartment blower cannot be guaranteed and the driver will see a warning to this effect in the multi\-function display.
- [122\-K4T2R\-06](/bulletins/10109306.md), 2017-08-01, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. Concerns: Relay for engine\-compartment blower Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. There is the possibility that the relay for setting 1 of the engine\-compartment blower is not inserted correctly in the relay carrier on the affected vehicles. If the relay is not inserted correctly, the function of setting 1 of the engine\-compartment blower cannot be guaranteed and the driver will see a warning to this effect in the multi\-function display. To remedy the situation, check that the engine\-compartment blower relay is seated correctly in the relay carrier.
- [122\-W2S8Q\-06](/bulletins/10109304.md), 2017-08-01, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. Concerns: Relay for engine\-compartment blower Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. There is the possibility that the relay for setting 1 of the engine\-compartment blower is not inserted correctly in the relay carrier on the affected vehicles. If the relay is not inserted correctly, the function of setting 1 of the engine\-compartment blower cannot be guaranteed and the driver will see a warning to this effect in the multi\-function display. To remedy the situation, check that the engine\-compartment blower relay is seated correctly in the relay carrier.
- [122\-T8X6Q\-09](/bulletins/10081380.md), 2016-10-04, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:COOLING SYSTEM. "THERE MAY BE A DIFFERENCE BETWEEN THE ACTUAL COOLANT TEMPERATURE AND THE PREDICTED TEMPERATURE DUE TO INCORRECT POSITIONING OF THEMAP\-CONTROLLED THERMOSTAT DURING THE WARM\-UP PHASE ON THE AFFECTED VEHICLES. THE ERROR MESSAGE ""FAULT COOLING SYSTEM"" WILL THEN BE DISPLAYED IN THE INSTRUMENT CLUSTER AND THE CHECK ENGINE LIGHT WILL COME ON."
- [122\-Q8P6F\-08](/bulletins/10081183.md), 2016-10-03, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:COOLING SYSTEM. THERE MAY BE A DIFFERENCE BETWEEN THE ACTUAL COOLANT TEMPERATURE AND THE PREDICTED TEMPERATURE DUE TO INCORRECT POSITIONING OF THE MAP\-CONTROLLED THERMOSTAT DURING THE WARM\-UP PHASE ON THE AFFECTED VEHICLES.THE ERROR MESSAGE "FAULT COOLING SYSTEM" WILL THEN BE DISPLAYED IN THE INSTRUMENT CLUSTER AND THE CHECK ENGINE LIGHT WILL COME ON. TO PREVENT THIS FROM HAPPENING, THE DME CONTROL UNIT MUST BE RE\-PROGRAMMED WITH AN UPDATED MAP FOR THE THERMOSTAT.
- [122\-N8E4F\-08](/bulletins/10081182.md), 2016-10-03, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ELECTRICAL SYSTEM. "THERE MAY BE A DIFFERENCE BETWEEN THE ACTUAL COOLANT TEMPERATURE AND THE PREDICTED TEMPERATURE DUE TO INCORRECT POSITIONING OF THE MAP\-CONTROLLED THERMOSTAT DURING THE WARM\-UP PHASE ON THE AFFECTED VEHICLES.THE ERROR MESSAGE ""FAULT COOLING SYSTEM"" WILL THEN BE DISPLAYED IN THE INSTRUMENT CLUSTER AND THE CHECK ENGINE LIGHT WILL COME ON. TO PREVENT THIS FROM HAPPENING, THE DME CONTROL UNIT MUST BE RE\-PROGRAMMED WITH AN UPDATED MAP FOR THE THERMOSTAT."
- [TI\-106\-1](/bulletins/10055045.md), 2014-03-29, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. PORSCHE: THE COOLANT REGULATORS MAY NOT MEET SPECIFICATIONS REQUIREMENT AND HAVE BEEN INSTALLED IN VEHICLES OVER A PERIOD OF LIMITED TIME AND THIS RESULTED IN COOLANT TEMPERATURE INCREASING ABOVE PERMITTED TEMPERATURE RANGE ONCE ENGINE HAS BEEN RUNNING, UNDER LOAD, FOR SHORT PERIOD OF TIME. MODEL 2014 911 GT3. \*PE

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