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Other or unknownPart report

2018 BMW 540I Other or unknown Problems

Complaints
4about this part
Share
13%of 31 total for the year
Median mileage
50miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the other or unknown of the 2018 BMW 540I, 13% of the 31 complaints for this model year. Where a mileage was given, the median is 50 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.

“The rear cross-traffic/pedestrian alert system is dysfunctional. I have had two other vehicles with this feature and am quite familiar with it. This vehicle is incapable of effectively detecting and warning of approaching rear traffic and/or (and worse) pedestrians. Repeated efforts to have my Bmw dealer address it have been fruitless. Bmw USA simply circles me back to the same dealer who is unable or unwilling to address the problem. The net result is safely technology that, if relied upon, has the potential to do more harm than good.”

NHTSA complaint #11111740, filed 2018-07, 50 miles

“According to Bmw literature, under appropriate conditions, the driver is to be alerted by means of vibrations in the steering wheel of either unintentional lane changes or vehicles in the driver's blind spot while signaling a turn. In my 540I, I can detect no steering wheel vibrations at all with the 'light' and 'medium' vibration settings. With the 'strong' setting, I can sometimes detect a very slight vibration ' if I pay close attention ' but it is very hard to distinguish from road surface feedback. …”

NHTSA complaint #11090516, filed 2018-04

“Recurring System Failures: My vehicle has exhibited intermittent and unpredictable system malfunctions, including engine stalling, braking issues, and electronic system failures. These pose serious safety risks and have made driving increasingly hazardous.continual tire pressure monitor reset light warning after reset 100 % measurement successful. rebalance all tires light reappear distant same spots”

NHTSA complaint #11694413, filed 2025-10

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
2019325%
2018413%
2017210%
200218%
200026%
199727%

Other parts of the 2018 BMW 540I

Air bags
14 complaints
Seat belts
11 complaints
Seats
10 complaints
Electrical system
4 complaints
Engine
3 complaints
Transmission and drivetrain
2 complaints
Brakes
1 complaints
Lane departure
1 complaints
Latches, locks and linkages
1 complaints
Suspension
1 complaints
Tires
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2018 BMW 540I

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