RoadVitals

2018 BMW 640XI

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
6
Latest Jun 22, 2026
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
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InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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Overview

Our database contains 6 NHTSA owner-reported complaints for the 2018 BMW 640XI, most frequently naming the airbags, driver assistance and visibility categories. 3 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Airbags250.0%
  • Driver assistance125.0%
  • Visibility125.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

No recalls in our database for this model year

That does not guarantee a specific vehicle is unaffected — recalls are issued against VINs, and new campaigns are announced regularly. Check a VIN on NHTSA.gov.

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

Driver assistance
Filed Jun 22, 2026

The contact owns a 2018 BMW 640XI. The contact stated that while pulling up to a red traffic light, the brake pedal was depressed; however, the engine revved unexpectedly, and the vehicle unintendedly accelerated and drove forward approximately 3-feet. The contact turned the vehicle off and restarted the engine and the engine continued to rev very high. The vehicle was restarted a second time and the unintended revving ceased and the vehicle operated normally. The following morning the vehicle was driven to the local dealer. The cause of the failure was not determined. The contact stated that the failure had occurred on one previous occasion. The manufacturer was notified of the failure. The failure mileage was 60,448.

NHTSA ID
11745694
Incident
May 28, 2026
Mileage
60,448 mi
Filed Mar 19, 2026

I hear a crackling or a popping sound coming from the windshield area as I’m driving. It is irregular and going over bumps seems to trigger it but yesterday as I was driving on a smooth highway with no vehicles nearby I heard a deafeningly loud crack sound. Then I noticed a tiny crack in the windshield. The sound was so loud that I considered it a potential accident inducing distraction as it really frightened me for a few seconds. Again it couldn’t have come from an outside projectile as there were no vehicles nearby and the highway surface was perfectly free of pebbles or debris.

NHTSA ID
11725479
Incident
Mar 18, 2026
Airbags
Filed Aug 26, 2024

My BMW's passenger side airbag malfunction light randomly came on and will not turn off. When I went to the dealer, BMW quoted apprx. $3000 to replace the seat sensor mat which they said probably got wet? No water was ever on the seat and no passenger sits there - just my purse. I feel this is a safety related defect after seeing numerous reports and complaints online and trying to fix the issue. The warning message also blocks other important information on my dashboard.

NHTSA ID
11610978
Incident
Nov 1, 2023
Airbags
Filed Mar 31, 2024

Consistent passenger restraint / passenger airbag failure warning. Took vehicle to BMW dealership and was told that the passenger seat must have moisture damage, causing the issue. There have been no spills or leaks in the vehicle. Quoted $2600 to fix. See attached. Vehicle’s safety in question.

NHTSA ID
11580338
Incident
Mar 29, 2024
Filed Dec 7, 2023

when opening the Panoramic Sunroof while driving, the curtain would not retract and sagged. It totally blocks the rear view and there is no way to fix it while driving. also if you have a car seat facing the rear, the curtain would falls onto baby's face and potentially cause suffocation

NHTSA ID
11559048
Incident
May 9, 2023
Visibility
Filed Sep 21, 2023

Moonroof shade failure. Droops, blocking rear window visibility while driving. Happened with no warning. Will bring to service center for inspection.

NHTSA ID
11545767
Incident
Sep 17, 2023

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

B510819

ELECTRICAL SYSTEM; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS

The basic conditions for initializing the power windows are not met.

B611305

ELECTRICAL SYSTEM

The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.

B011423

ENGINE AND ENGINE COOLING

PRESSURE CONTROL VALVE (PCV) EXTENDED LTD WTY 15 YEARS/150,000 MILES

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

BMW 640XI by model year
YearComplaintsRecallsInvestigationsIssue Index
2019200—
2018Viewing600—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.