2018 Bmw 640xi problems, complaints & recalls
Most-reported problem areas: Air Bags (2) · Visibility/Wiper (1) · Vehicle Speed Control (1)
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (3)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Visibility:power Window Devices And Controls 2024-01-16 · B510819 · Service Bulletin/Repair Instructions
the basic conditions for initializing the power windows are not met.
Electrical System 2024-01-11 · B611305 · Service Bulletin/Repair Instructions
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 ã¢ââdischarged batteryã¢ââ complaints.
Engine And Engine Cooling 2023-11-13 · B011423 · Service Bulletin/Repair Instructions
pressure control valve (pcv) extended ltd wty 15 years/150,000 miles
What owners report
2026-06-22 · Vehicle Speed Control · 60,448 mi“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 …”
2026-03-19 · Unknown Or Other“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 …”
2024-08-26 · Air Bags“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 report…”
2024-03-31 · Air Bags“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.…”
2023-12-07 · Unknown Or Other“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 …”
2023-09-21 · Visibility/Wiper“moonroof shade failure. droops, blocking rear window visibility while driving. happened with no warning. will bring to service center for inspection. …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.