# Service bulletin B640120

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: 10174028
- Published by NHTSA: 2020\-04\-20
- Manufacturer's number: B640120
- Manufacturer's date: 2020\-04\-01
- NHTSA component: ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE

## NHTSA's summary

AIR CONDITIONING DOES NOT COOL: The air conditioning no longer cools the vehicle. A vehicle test reveals one or both of the following faults stored in the IHX\_I1 Control Module: 801295 \- Heat Pump pressure\-temperature sensor 2 after air condition compressor: pressure short to ground / open circuit 80112A \- Heat Pump pressure\-temperature sensor 2 after air condition compressor: temperature \- short to ground A short circuit at the temperature sensor due to aluminum particles in the high\-pressure line.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174028-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174028-9999.pdf)

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

## Components

Brakes, Driver assistance, Electrical system, Fuel system, Backup camera

## Vehicles listed

- 2014 to 2020 BMW I3

## Other bulletins for the same vehicles and component

- [B340517](/bulletins/10174009.md), 2020-04-20, Service bulletin: BACK OVER PREVENTION; SERVICE BRAKES, HYDRAULIC; WHEELS; POWER TRAIN. TICKING NOISE WHILE CORNERING WITHOUT THE BRAKES APPLIED: This Service Information Bulletin \(Revision 3\) replaces SI B34 05 17 dated September 2017. Ticking noise coming from front wheel while cornering without brakes applied noticeable at low speeds. The vehicle must be moving. See attached video V34 01 20 Note: For a similar noise heard when parking with the brakes applied refer to SIB 31 01 12. Microscopic movement of the contact interface between the inner brake disc and the wheel bearing flange on vehicles equipped with lightweight brake discs.

JSON: [/v1/bulletins/10174028](/v1/bulletins/10174028)

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