2018 BMW M5 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2018 BMW M5, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Engine327.3%
- Airbags218.2%
- Brakes19.1%
- Fuel system19.1%
- Interior & seats19.1%
- Powertrain (other)19.1%
- Seat belts19.1%
- Body & structure19.1%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
I had gotten into a head on collision in January. My insurance had refused to cover me because I had only been insured for a month. Now I’m trying to get it fix out of pocket. I’m finding out about more repairs needed ASAP. My engine might be gone.
BMW issued a stop sale on 2017-2023 bmw F90 M5 chassis regarding the expansion tank failure. All vehicles should be affected by the recall. My current vehicle is experiencing the issues stated on the recall notice. Expansion tank is failing and causing coolant to seep into engine bay
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
The passenger seat occupancy sensor, an electrocapacitive mat (ecm), is defective on a large number of cars on the g30/fop platform including mine. This leads to intermittent sensor faults which cause an airbag warning.
This is for the front passenger seat only.The idrive system will give an error for the passenger restraint system and will mention there is a seat belt issue and turn off the airbag. This is intermittent and will happen with or without a passenger. I contacted BMW about it but because it is not presently acting out, they won't do anything about it unless I want to just start paying for new parts and do "exploratory" surgery on it trying to resolve this. Unacceptable as this has been happening for a couple of years and is a danger because of it happens during an accident it could prove fatal.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
I had gotten into a head on collision in January. My insurance had refused to cover me because I had only been insured for a month. Now I’m trying to get it fix out of pocket. I’m finding out about more repairs needed ASAP. My engine might be gone.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
I ALMOST HAD A TERRIBLE ACCIDENT IN MY 2 WEEK OLD 2018 M5 ON THE 1-95 HIGHWAY ON THE NIGHT OF MAY 25, 2018 AT ABOUT 9:45PM. WITHOUT WARNING, AT ABOUT 65MPH, THE CAR JERKED FOR ABOUT 3SECONDS , KICKED OUT OF DRIVE INTO NEUTRAL AND STARTED DECELERATING. I WAS IN THE MIDDLE LANE SURROUNDED BY SPEEDING VEHICLES. I MANAGED TO GUIDE IT TO THE SHOULDER AND TURNED OFF THE IGNITION FOR 2MINUTES, AFTER WHICH I RE-STARTED THE CAR AND WAS ABLE TO ENGAGE DRIVE. I CONTACTED MY DEALERSHIP TODAY, ONLY TO BE INFORMED, THIS WAS AS A RESULT OF COMPUTER GLITCH CONTROLLING THE FUEL PUMP CAUSING IT TO SHUT OFF WITHOUT WARNING. I WAS TOLD THERE HAS BEEN A SOFTWARE PATCH TO REMEDY THIS PROBLEM. IF IT IS TRUE, I BELIEVE THE CORRECTION SHOULD HAVE BEEN DONE BEFORE THE CAR WAS PICKED UP OR PROMPTLY NOTIFIED TO RETURN THE CAR FOR FIXING. I COULD HAVE BEEN KILLED ON THE HIGHWAY LAST NIGHT IF NOT FOR MY PROMPT SITUATION AWARENESS AND EXPERIENCE IN HANDLING THIS POWERFUL CAR WHICH IS MY FOURTH M5 SINCE 2006. OWNERS NEED TO BE NOTIFIED IMMEDIATELY FOR FIXES LIKE THIS THAT CAN LEAD TO FATAL INCIDENTS. I DON'T KNOW IF ANYTHING SIMILAR HAS BEEN REPORTED ABOUT THIS MODEL
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
The passenger seat occupancy sensor, an electrocapacitive mat (ecm), is defective on a large number of cars on the g30/fop platform including mine. This leads to intermittent sensor faults which cause an airbag warning.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
I ALMOST HAD A TERRIBLE ACCIDENT IN MY 2 WEEK OLD 2018 M5 ON THE 1-95 HIGHWAY ON THE NIGHT OF MAY 25, 2018 AT ABOUT 9:45PM. WITHOUT WARNING, AT ABOUT 65MPH, THE CAR JERKED FOR ABOUT 3SECONDS , KICKED OUT OF DRIVE INTO NEUTRAL AND STARTED DECELERATING. I WAS IN THE MIDDLE LANE SURROUNDED BY SPEEDING VEHICLES. I MANAGED TO GUIDE IT TO THE SHOULDER AND TURNED OFF THE IGNITION FOR 2MINUTES, AFTER WHICH I RE-STARTED THE CAR AND WAS ABLE TO ENGAGE DRIVE. I CONTACTED MY DEALERSHIP TODAY, ONLY TO BE INFORMED, THIS WAS AS A RESULT OF COMPUTER GLITCH CONTROLLING THE FUEL PUMP CAUSING IT TO SHUT OFF WITHOUT WARNING. I WAS TOLD THERE HAS BEEN A SOFTWARE PATCH TO REMEDY THIS PROBLEM. IF IT IS TRUE, I BELIEVE THE CORRECTION SHOULD HAVE BEEN DONE BEFORE THE CAR WAS PICKED UP OR PROMPTLY NOTIFIED TO RETURN THE CAR FOR FIXING. I COULD HAVE BEEN KILLED ON THE HIGHWAY LAST NIGHT IF NOT FOR MY PROMPT SITUATION AWARENESS AND EXPERIENCE IN HANDLING THIS POWERFUL CAR WHICH IS MY FOURTH M5 SINCE 2006. OWNERS NEED TO BE NOTIFIED IMMEDIATELY FOR FIXES LIKE THIS THAT CAN LEAD TO FATAL INCIDENTS. I DON'T KNOW IF ANYTHING SIMILAR HAS BEEN REPORTED ABOUT THIS MODEL
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
This is for the front passenger seat only.The idrive system will give an error for the passenger restraint system and will mention there is a seat belt issue and turn off the airbag. This is intermittent and will happen with or without a passenger. I contacted BMW about it but because it is not presently acting out, they won't do anything about it unless I want to just start paying for new parts and do "exploratory" surgery on it trying to resolve this. Unacceptable as this has been happening for a couple of years and is a danger because of it happens during an accident it could prove fatal.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
I had gotten into a head on collision in January. My insurance had refused to cover me because I had only been insured for a month. Now I’m trying to get it fix out of pocket. I’m finding out about more repairs needed ASAP. My engine might be gone.
Too few reports in this category for a page of its own — they appear in the full complaint list.
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.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .