RoadVitals

2018 BMW M5 Owner Complaints

Reports submitted to NHTSA by owners and drivers, shown in full

Data refreshed

Complaints on fileComplaints 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 9, 2026
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.
0
Filed in the last 12 monthsReports filed with NHTSA in the trailing 365 days. Recent volume reflects attention and vehicle age as much as anything else.
2
Reports on file since May 26, 2018

What this page shows

Our database holds 6 NHTSA owner-reported complaints for the 2018 BMW M5. Each one is a report filed by an owner or driver and published by NHTSA without most of them being verified. A complaint is not a confirmed defect, not a recall and not a manufacturer bulletin. Narratives are shown exactly as filed.

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

Complaints, most recent first

Showing 1–6 of 6

AirbagsInterior & seats
Filed Jun 9, 2026

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.

NHTSA ID
11743092
Incident
May 14, 2026
Body & structureBrakesEngine
Filed Apr 4, 2026

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.

NHTSA ID
11729136
Incident
Jan 2, 2026
Engine
Filed Jun 17, 2024

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

NHTSA ID
11594879
Incident
Jun 14, 2024
Engine
Filed Apr 26, 2024

The coolant tank on my 2018 M5 failed causing a coolant leak. This is a highly documented problem on the forums and mine needed replacement at 22k miles. The bigger issue is the location of the tank because the coolant leaks on the ignition coils and fuel injectors causing failures later. My coils and spark plugs needed replacement along with the tank. This is unacceptable and BMW needs to address this issue.

NHTSA ID
11585423
Incident
Nov 22, 2022
AirbagsSeat belts
Filed Mar 12, 2024

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.

NHTSA ID
11577017
Incident
Mar 12, 2024
Fuel systemPowertrain (other)
Filed May 26, 2018

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

NHTSA ID
11098125
Incident
May 25, 2018
Mileage
750 mi

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.

Data sources

Data on this page last refreshed .