2018 Bmw 540i problems, complaints & recalls
Most-reported problem areas: Seats (10) · Seat Belts (4) · Engine (3)
🧭 Reliability snapshot
Compared against other Bmw 540i model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (2)
Back Over Prevention: Sensing System: Camera 2019-09-27 · campaign 19V684000 · 257,473 vehicles
Defect: BMW of North America, LLC (BMW) is recalling certain 2018 540d, 2018-2020 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 530e, 530e xDrive, X3 sDrive, X3 xDrive, X3 M40i, X3 M, and 2019-2020 X4 xDrive, X4 M40i, X4 M, X7 xDrive, X7 M50i, 740Li, 740Li xDrive, 750Li, 750Li xDrive, 8 Series Convertible and Coupe 840i, 840i xDrive, M850i xDrive, X5 sDrive, X5 xDrive, X5 M50i, X6 xDrive, X6 M50i, 330i, 330i xDrive, M340i, M340i xDrive, Z4 sDrive, Z4 M40i, 740Le xDrive and 745Le xDrive, 2018-2
Risk: The lack of an image in the back-up camera display increases the risk of a crash.
Fix: BMW will notify owners, and dealers will update the back-up camera software, free of charge. The recall began November 8, 2019. Owners may contact BMW customer service at 1-800-525-7417 or Rolls-Royce at 1-877-877-3735. Toyota owners may contact Toyota customer service at 1-888-270-9371.
Engine And Engine Cooling:engine 2018-07-11 · campaign 18V465000 · 5,309 vehicles
Defect: BMW of North America, LLC (BMW) is recalling certain 2018 BMW 540d xDrive vehicles. The crankshaft sensor may be equipped with incorrect firmware, preventing the sensor from properly processing input from the crankshaft reluctor ring, possibly resulting in a vehicle stall. On September 12, 2018, BMW expanded the recall to a total of 5,309 vehicles including certain 2018-2019 BMW 540d xDrive, 230i M240i, M240i xDrive, X2 sDrive28i, X2 xDrive28i, X1 sDrive28i, X1 xDrive28i, 330i, 330i xDrive,
Risk: A vehicle stall can increase the risk of a crash.
Fix: BMW will notify owners, and dealers will replace the crankshaft sensor, free of charge. The recall began September 6, 2018. Owners may contact BMW customer service at 1-800-525-7417.
Service bulletins (286)
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.
Electrical System 2025-10-29 · B720125 · Warranty Program/Extension
a situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. if the situation is currently present, sit in the seat and move the seat to a slightly different position. the pol (passenger o
Electrical System 2025-04-18 · B720125 · Warranty Program/Extension
the supplemental restraint systems (srs) front passenger’s seat occupancy capacitive interior sensor (cis) mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in-serv
Engine 2024-05-02 · B010324 · Warranty Program/Extension
evap system purge (vent) valve ext ltd wty (elw) 15/150
Exterior Lighting 2024-03-14 · B630418 · Service Bulletin/Repair Instructions
one or more of the led daytime running lights are dim or discolored.
Engine And Engine Cooling 2024-03-04 · B120721 · Service Bulletin/Repair Instructions
check control message (ccm) indicates: (id 213): stop, exercising due care. voltage supply the service engine soon light is on with the following dme fault code: 21b209 - starter alternator / belt for 48v system (osa_riemen_riss): belt betweencombustion engine and starter generator torn and/or o
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.
Showing the 6 most recent of 286 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-09-08 · Seats“seat belt/restraint system malfunction seat pad …”
2026-04-05 · Seats“on and off system notification of "passenger restraint system malfunction" with and without a passenger in the seat. also, the airbag off/disabled light on the instrument cluster illuminated. can't seem to declare if it is an electrical shortage, seatbelt buckle related or passenger pressure sensor sensor in the seat. find this to be a major safety…”
2026-01-18 · Engine“for this item - please refer to nthsa recall 18v-465 : bmw crank sensor recall 9/12/2018. in particular - this refers to a 2018 bmw 540ix. specifically, "vehicles may have been manufactutred with a crankshaft sensor, that due to sensor firmware, cannot accurately process the input from the crankshaft reluctor ring. basis for recall population det…”
2025-10-19 · Unknown Or Other“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. …”
2025-09-10 · Seat Belts“"passenger restraint system (malfunction)" warning appears on the main screen and instrument panel blocking other information and cannot be removed from instrument panel while the seatbelt has worked normal. i researched the problem and found several threads about this problem on the bmw owners forums and found several discussions by numerous owne…”
2025-07-02 · Visibility/Wiper“infotainment system interplay through audio voices coming from place of employment this have been unusual to audio system in various of my vehicles this over the air bugs are safety concerns as well as frequent unexpected wiper blade activation without touching for auto movement complex to electrical issues uncommon to vehicle routing infotainment …”
2025-06-25 · Unknown Or Other“sunroof exploded, glass shards everywhere. this has to be a manufacturer defect…”
2025-03-13 · Seats“i was just driving my bmw and a airbag light and a malfunction error popped up on my dashboard, that read that the passenger restraint system has malfunctioned. and i was doing some research on what was wrong with my car, and all the forums are indicating that this is a very common issue on these cars due to a bad seat occupancy sensor mat. to fix …”
2025-02-09 · Seats · 💥 crash“constantly pops up a message for passenger restraint system malfunction. i had an accident where i swerved off the road into a ditch at about 60 mph. i the driver was not hurt and the passenger wouldn’t have been hurt either if it was for the passenger seat belt not locking correctly at first and then repeatedly locking and unlocking the entire tim…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.