2017 BMW 340I Other or unknown Problems
- Complaints
- 3about this part
- Share
- 60%of 5 total for the year
- Median mileage
- 14,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the other or unknown of the 2017 BMW 340I, 60% of the 5 complaints for this model year. Where a mileage was given, the median is 14,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Driving about 40mph on a straight road, no potholes,on sunny day, temp about 50. Sudden explosion and sunroof exploded outward. Pulled off road, nothing had struck the car. The sunroof glass was completely shattered. There were no injuries”
NHTSA complaint #11088576, filed 2018-04, 14,500 miles“While driving down the interstate I-65 South, my sunroof spontaneously exploded. It sounded like a bomb explosion inside my car and could have caused grave danger to myself. There was nothing dropped on my sunroof as the screen remained intact and closed with no damage. This was an upward and out explosion of my sunroof, which I feel is a defect and should have been the responsibility of BMW. However, the car manufacturer is prepared to charge me $2,719.05 to fix. This I believe is a defect. How does a sunroof explode spontaneously? Please help.”
NHTSA complaint #11512133, filed 2023-03“I was driving when I heard a loud explosion sound. I thought something had hit the car. Upon inspection, I noticed the sunroof had exploded into thousands of pieces. This occurred on june 17, 2019.”
NHTSA complaint #11220631, filed 2019-06Related service bulletins
- 10227568Oct 1, 2022According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy…
- 10225128Sep 1, 2022Due to a production error, the telematics control units were delivered without an IMS configuration.
- 10200249Jun 1, 2021The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting…
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2017 | 3 | 60% |
| 2016 | 1 | 17% |
Other parts of the 2017 BMW 340I
← All problems reported for the 2017 BMW 340I
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology