9.4

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
1,275 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2020 BMW M340i miscellaneous problems

miscellaneous problem

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2020 BMW M340i Owner Comments

problem #4

Apr 212023

M340i

  • miles

A D V E R T I S E M E N T S

Oil pump on 2020 models is a constant issue. They fail after about 15k miles and BMW refuses to recognize this as a recall issue.

- Simpsonville, SC, USA

problem #3

Oct 102022

M340i

  • miles
Unable to read oil level, high or unusually alarming oil pressure. High oil pressure codes

- Hanover Park, IL, USA

problem #2

Sep 022020

M340i

  • miles
The front collision system does not work. Early warning rarely comes on, and in a recent near crash on the dallas North tollway, it never came on. Every now and then, the early warning front collision warning will come on for a second, but there is no reason for it. I took it to the local dealership (classic BMW) and they said it is operating as normal, although to prove it they had to tailgate cars at 75 mph to simply get the early warning light to illuminate a few times. They never got the imminate crash warning to come on. This system is unsafe and does not provide the protection it advertises. I've driven several other makes that had this system, and the early warning comes on very early, when you are barely near the car in front of you.

- Dallas, TX, USA

problem #1

Jul 062020

M340i 6-cyl

  • 5,100 miles
I was driving on the highway at approximately 70 mph, the posted limit, when all of a sudden the sunroof exploded. It sounded like a gunshot and I almost lost control of the vehicle. Luckily the headliner was closed so the glass did not enter the cabin. There were no vehicles in front of us for at least 1 mile and no overpasses or rocks that I saw or heard hitting the vehicle. It is a stock vehicle with 5200 miles on it.

- Merion Station, PA, USA

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