2018 BMW 330I problems
Owners have filed 39 complaints with NHTSA about the 2018 BMW 330I. Engine is the most reported problem area, at 36% of complaints. Next are fuel system (13%) and electrical system (10%).
At a glance
- Complaints
- 39 filed with NHTSA
- Most reported
- Engine 36% of complaints
- Crashes and fires
- 0 and 4
- Injuries and deaths
- 1 and 0
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
What the data shows
Safety-related details: 4 complaints mention a fire; 1 injury reported.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2018 ranks 8th most-complained-about out of 11 model years of the BMW 330I with enough data (19 complaints in that window). It is also covered by 1 safety recall campaign.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
I smelt and saw smoke coming from the back of my vehicle. I pulled over on to the left side of [XXX] bound. Then, I jumped out of the car to check the truck. I didn't see anything, then i popped the hood and still did not see anything visible. I then went back to the trunk to check it again, and that is when I saw flames pop out from the back seat area. It was in the area where the back de-frost wires and some other wires are as well. Thank you, [XXX]
On January 19, 2022 I was driving and then smoked filled inside my car and the outside engine was smoking and a light came on that said check coolant. BMW service took me in that day and they said my coolant broke. They removed it and replaced it. They did not understand how the coolant broke but I paid for the service and parts and moved forward. On November 25, 2022 I went into the same BMW service center to get a routine car service and they stated there was a recall and they would replace my coolant for free.
I was on the capital beltway outside washington dc going about 60 MPH and my sunroof suddenly shattered. It was extremely scary because it sounded like a gun shot going off. It was a very hot day, low 90s. Luckily I had just closed the sun visor so the glass did not pour down on me or my passengers. When we pulled over, we found a large hole in the front panel of the panoramic sunroof and shattered glass sitting on the fabric sun visor.the remaining glass was crackled.
Was on a road trip, drove 600 miles previous day. Next day evening, pirelli run flat tire blows out on a freeway. I had just passed the toll plaza and was accelerating to merge with the traffic. Run flat reinforced sidewalls should've allowed the tires to be usable even at 0 psi but I experienced severe vibration coming through the chassis, car pulling to the left and emitting a terrible grinding noise that felt terrible and unsafe to drive.