# Service bulletin B640224

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: 10250367
- Published by NHTSA: 2024\-03\-02
- Manufacturer's number: B640224
- Manufacturer's date: 2024\-02\-05
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ELECTRICAL SYSTEM

## NHTSA's summary

The coolant changeover valve may develop a coolant leak when the outside temperatures go below 19°F \(\-7°C\). The vehicles operating systems would also need to be at that same low temperature \(example: being parked outside, overnight in low temperatures\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10250367-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10250367-9999.pdf)

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

## Components

Electrical system, Engine, Cooling system

## Vehicles listed

- 2023 to 2024 BMW I4
- 2024 BMW I5
- 2023 to 2024 BMW I7

JSON: [/v1/bulletins/10250367](/v1/bulletins/10250367)

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