# Service bulletin B310120

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: 10182607
- Published by NHTSA: 2020\-11\-16
- Manufacturer's number: B310120
- Manufacturer's date: 2020\-10\-01
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION

## NHTSA's summary

SERVICE ACTION \- REPLACE THE WISHBONE OR TENSION STRUT: An incorrectly pressed\-in rubber mount in the wishbone, or hydraulic mount in the tension strut can lead to acoustic abnormalities in the front axle. A process fault at the supplier resulted in the mounts of the affected wishbone or tension strut to be incorrectly pressed in.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182607-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10182607-9999.pdf)

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

## Components

Equipment and accessories, Suspension

## Vehicles listed

- 2021 BMW 330E
- 2019 to 2021 BMW 330I
- 2020 to 2021 BMW M340I
- 2019 to 2021 BMW Z4

## Other bulletins for the same vehicles and component

- [InVeh\-InApp\-Comm](/bulletins/11029010.md), 2026-02-25, Over\-the\-air update: SUSPENSION. It was found that the rubber mounts of the wishbone or the tension strut were not correctly pressed in due to a manufacturing fault at the supplier's end. This can lead to an acoustic abnormality in the vehicle.
- [B660720](/bulletins/10250601.md), 2024-03-02, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM. The functionality of the left rear SRR sensor could be reduced which would display the Driving Assistance Check Control Message.
- [B660820](/bulletins/10250600.md), 2024-03-02, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. The functionality of the right rear SRR sensor could be reduced which would display the "Driving Assistance"\- Check Control Message.
- [B610524](/bulletins/10249032.md), 2024-02-01, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. The Central Information Display goes black intermittently due to resets of the Head Unit \(HU\-H3\). FaultB7F8F9 â“ âHU\-H: Resetâ will be stored in the HU\-H3.
- [B652823](/bulletins/10242874.md), 2023-10-01, Service bulletin: EQUIPMENT. Customers may be experiencing one or more of these following issues with Bluetooth operation: Bluetooth cannot be switched on or off in the head unit \(HU\-H4\) Paired mobile devices cannot be deleted Customer is unable to make phone calls or stream music with mobile device Customer is unable to connect a new mobile device via Bluetooth Mobile device does not automatically reconnect via Bluetooth in the next drive cycle \(after short sleep cycle\)
- [B410323](/bulletins/10241366.md), 2023-08-28, Service bulletin: SUSPENSION. The left front suspension's aluminum strut dome \(general area circled\) was incorrectly riveted to the body's wheel\-well.
- [B840323](/bulletins/10239615.md), 2023-07-24, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. BMW AG has issued a Delivery Stop \(effective February 9, 2023\) on certain Model Year 2022 \- 2023 BMW vehicles that were produced between June 29, 2022 and February 16, 2023.
- [B611320](/bulletins/10239608.md), 2023-07-24, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT. In the event of an accident, the two\-battery Dual Storage System \(DSS\) is disconnected from the electrical system via an internal relay.
- [B120323](/bulletins/10239601.md), 2023-07-24, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. BMW AG has issued a Delivery Stop effective June 6, 2023 on certain Model Year 2023 \- 2024 BMW vehicles that were produced between October 26, 2022 and May 8, 2023.
- [B840323](/bulletins/10238093.md), 2023-06-26, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE. BMW AG has issued a Delivery Stop \(effective February 9, 2023\) on certain Model Year 2022 \- 2023 BMW vehicles that were produced between June 29, 2022 and February 16, 2023. This was originally called ""Wireless Charging Tray"". Software in potentially affected vehicles may not recognize the removal of the digital key \(Key Card or mobile phone\) from the wireless charging tray, and thereby not meeting a federal requirement."

JSON: [/v1/bulletins/10182607](/v1/bulletins/10182607)

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