# Service bulletin B510321

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: 10188940
- Published by NHTSA: 2021\-03\-15
- Manufacturer's number: B510321
- Manufacturer's date: 2021\-02\-01
- NHTSA component: VISIBILITY; STRUCTURE

## NHTSA's summary

TICKING NOISE FROM A\-PILLAR AREA: A ticking noise is present in the A\-Pillar and side mirror area when driving at speeds of approximately 40 MPH.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188940-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188940-9999.pdf)

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

## Components

Body and frame, Glass, wipers and mirrors

## Vehicles listed

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

## Recalls for the same vehicles and component

- [2021078](/recalls/tc/2021078.md), 2021-02-18: Visual System
- [19V755000](/recalls/nhtsa/19V755000.md), 2019-10-23: STRUCTURE:BODY:TRUNK LID
- [2019480](/recalls/tc/2019480.md), 2019-10-01: Visual System

## Other bulletins for the same vehicles and component

- [B010325](/bulletins/11030060.md), 2026-03-13, Warranty extension: STRUCTURE:BODY. The Radiator Grilles Lower Active Air Flap Assembly limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in\-service / delivery date.
- [B410725](/bulletins/11022101.md), 2025-08-24, Service bulletin: STRUCTURE:BODY. While driving on a smooth and/or uneven road, a “cracking” sound is heard from the rear wheel arch area \(highlighted in orange\) on either the right or left side.
- [B511223](/bulletins/11020911.md), 2025-07-28, Warranty extension: STRUCTURE:BODY. After carrying out the vehicle test, one or more of the stored faults indicate that the operation of the front bottom active air flap is obstructed or blocked.
- [B010825](/bulletins/11018730.md), 2025-05-31, Warranty extension: STRUCTURE:BODY. A vehicle listed above may arrive with a Check Control Message \(CCM\), and/or malfunction indicator lamp\(MIL\) illuminated. After carrying out the vehicle test, one or more of the stored faults indicate that the operation of the front bottomactive air flap is obstructed or blocked. Thoroughly inspect the front bottom air flap, when applicable, remove any contamination that is found caught inand between the bottom air flaps \(aka “blinds”\) and/or the housing.
- [B513019](/bulletins/11017506.md), 2025-05-02, Service bulletin: STRUCTURE:BODY. A groaning noise is present from the door frame of any door, most commonly when driving over rough roadsor during body flex. This situation may be worse in vehicles which are regularly waxed in th e area of the door jamb.
- [B010325](/bulletins/11017103.md), 2025-04-18, Warranty extension: STRUCTURE:BODY. The Radiator Grilles Lower Active Air Flap Assembly limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in\-service / delivery date.
- [B010725](/bulletins/11017102.md), 2025-04-18, Warranty extension: STRUCTURE:BODY. The Radiator Grilles Lower Active Air Flap Assembly limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in\-service / delivery date.
- [B640422](/bulletins/10250374.md), 2024-03-02, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. An interference noise \(groaning noise\) can be heard from within the heating and air\-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap moves to a different position. Due to the complex design of the heating and air\-conditioning unit, the kinematics causing it \(top or bottom,left or right\) may not be able to be precisely located. Depending on the vehicle model, the number of servomotors \(and the associated kinematics unit\) varies.Various models use either 2 or 3 servomotors.
- [B510819](/bulletins/10249437.md), 2024-02-01, Service bulletin: VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM. The basic conditions for initializing the power windows are not met.
- [B513019](/bulletins/10242879.md), 2023-10-01, Service bulletin: STRUCTURE. A groaning noise is present from the door frame of any door, most commonly when driving over rough roadsor during body flex. This situation may be worse in vehicles which are regularly waxed in the area of the door jamb. Note: This service information bulletin contains diagnostic and repair information which was previouslyincluded in an NED test plan that has been removed.

JSON: [/v1/bulletins/10188940](/v1/bulletins/10188940)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20B510321&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10188940&vehicle=Service%20bulletin%20B510321)