# Service bulletin 122\-Q4A9M\-05

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: 10138290
- Published by NHTSA: 2018\-05\-21
- Manufacturer's number: 122\-Q4A9M\-05
- Manufacturer's date: 2018\-04\-19
- NHTSA component: EQUIPMENT:APPLIANCE:AIR CONDITIONER

## NHTSA's summary

Subject: Air\-conditioning control unit \(also control panel/switch console\) Symptom: Reduced or no cooling air flow from the air conditioning system. Cause: Too much condensation can be produced while cooling the vehicle. The condensation freezes and causes the evaporator to ice up. Remedial Action: Re\-program the air\-conditioning control unit by entering the campaign number. The evaporator temperature is increased slightly to reduce the build\-up of condensation.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10138290-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10138290-0001.pdf)

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

## Components

Equipment and accessories, Heating and air conditioning

## Vehicles listed

- 2017 to 2018 PORSCHE 718 BOXSTER

## Other bulletins for the same vehicles and component

- [PIWIS2302s](/bulletins/10246417.md), 2023-12-08, Service bulletin: EQUIPMENT. Information for PIWIS tester update 42.300.050 \& .052
- [No. 35\-23](/bulletins/10246387.md), 2023-12-07, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Instructions on manufactures certificate for approved Porsche A40 engine oils
- [No. 34\-23](/bulletins/10246386.md), 2023-12-07, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Instructions on manufactures certificate for approved Porsche C40 engine oils
- [No. 33\-23](/bulletins/10246385.md), 2023-12-07, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Instructions on manufactures certificate for approved Porsche C30 engine oils
- [No. 32\-23](/bulletins/10246384.md), 2023-12-07, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Instructions on manufacturers certificate for approved C20 engine oils
- [PIWIS2302r](/bulletins/10246374.md), 2023-12-07, Service bulletin: EQUIPMENT. Information for PIWIS tester update 42.300.040 \& .041
- [PIWIS2302q](/bulletins/10246372.md), 2023-12-07, Service bulletin: EQUIPMENT. Information for PIWIS tester update 42.300.035
- [PIWIS2302p](/bulletins/10246369.md), 2023-12-07, Service bulletin: EQUIPMENT. Information for PIWIS tester update 42.300.030 \- .032
- [No. D654](/bulletins/10246366.md), 2023-12-07, Service bulletin: EQUIPMENT. Parts information for parts withdrawal involving the glass roof \- 9J0877069EY and 9J0877069DY
- [PIWIS2302h](/bulletins/10244982.md), 2023-11-07, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Special tools and equipment information on PIWIS tester update 42.250.050

JSON: [/v1/bulletins/10138290](/v1/bulletins/10138290)

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