2018 BMW 3 Series
Problems, recalls and owner-reported issues
Engine is the leading concern among 59 owner complaints filed for this model year. This is the 13th highest complaint count among 21 3 Series model years with reports.
Of the 2018 reports, 5 involved a crash and 4 involved a fire. 4 people were injured.
What owners report most often
Recalls and investigations
No safety recalls on file.
Representative owner complaints: electrical system
14 reports, newest first. Show all
Electrical system, Aug 12, 2026
The contact owns a 2018 BMW 330E. The contact stated that while driving at an undisclosed speed, the engine overheated, and the vehicle became inoperable. The check engine warning light was illuminated. The message "Drivetrain - Check Soon" was displayed. The vehicle was towed to the dealer and was diagnosed with engine failure, melted cooling hoses, and starter failure. The vehicle was repaired by the dealer under warranty and was then towed to an independent mechanic where cooling hoses were replaced. The starter failure was not addressed. The dealer was contacted about the repair of the starter failure based on NHTSA Campaign Number: 26V441000 (Electrical System); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 99,436.
Electrical system, Aug 2, 2025, fire
While driving on the highway, my vehicle unexpectedly caught fire due to no fault of my own. Upon investigation, it appears the fire originated from a short in the rear window defroster wiring, which led to significant damage in the right rear C-pillar area, headliner, rear window, and rear deck. This event was not only hazardous to my physical safety but also deeply traumatic on a personal level. As someone who suffered severe burns as a child, experiencing a fire while operating a vehicle triggered a powerful emotional response. The trauma of the incident has had a profound impact on my mental health and sense of safety. I have always trusted BMW for its engineering excellence and commitment to safety, which makes this situation even more disheartening because they refuse to fix my vehicle.
Electrical system, Jun 17, 2025, fire
I smelt and saw smoke coming from the back of my vehicle. I pulled over on to the left side of [XXX] bound. Then, I jumped out of the car to check the truck. I didn't see anything, then i popped the hood and still did not see anything visible. I then went back to the trunk to check it again, and that is when I saw flames pop out from the back seat area. It was in the area where the back de-frost wires and some other wires are as well. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Engine and engine cooling, Electrical system, Jan 9, 2025
The contact owns a 2018 BMW 330E. The contact stated while driving at 60 MPH, the vehicle hesitated, stalled, and restarted independently. The vehicle was taken to a dealer where it was diagnosed that the starter needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 24V576000 (ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING), however the VIN was not included in the recall. The failure mileage was 103,000.
Electrical system, Jan 18, 2024
The electrical call system malfunctions. I’ve done extensive research and actually confirmed with Garret today at A&L BMW that there is a problem in the manufacturing of the shark fin. The gasket that BMW uses does not hole up and the sealant does not keep water from leaking into the fin. Every time it rains/snows or the vehicle is wet the system malfunctions. Currently it only has the ability to affect me if I were in a wreck and won’t notify emergency services. This has the ability to shut down all electrical functions in my car and has been a common issue in BMW dating back as far as 2015. I called them in April to have it looked at, but I didn’t understand the problem and it had ceased. But since the weather has now began to be more frequently wet, this problem has become more persistent. Now they won’t cover because the final warranty expired in December of 2023. This should be recalled because it is a manufacturing issue.
Electrical system, Jan 2, 2024
The contact owned a 2018 BMW 330I. The vehicle was taken to a local dealer for a Manufacturers Recall: 0017150200 related to the Coolant Leak to be completed. The contact stated that after driving 7 miles to her home at 35 MPH, there was smoke coming from the engine compartment. All the warning lights illuminated. The vehicle was powered off and the smoke extinguished on its own. A fire report was not filed. There were no visible flames. The local dealer was called and the vehicle was towed back to the dealer where it was confirmed that the pressure test was not completed and there was no coolant in the vehicle. The dealer informed the caller that the struts needed to be replaced however the coolant failure was repaired. The vehicle was repaired for the coolant failure however the contact mentioned that the vehicle was not performing as designed. The manufacturer was not notified of the failure. The failure mileage was 51,086.
Power train, Electrical system, Engine, Sep 24, 2023, crash
Rattling noise we’ll driving and when going over 30 mph can lose control
Electrical system, Other or unspecified, Engine, May 13, 2023, crash
Rattling noise when accelerating
Steering, Electrical system, Forward collision avoidance, Oct 23, 2022
The car started to make a popping noise and then the collision warning light, Steering Light and Pedestrian warning lights came on and the steering became very tight. The electric steering became manual. Yes problem has been reported to Braman BMW Jupiter as well as BMW USA.
Steering, Electrical system, Service brakes, Jan 25, 2022
In May 2021 I purchased a 2018 Certified Pre-owned BMW 330e Plug-in Hybrid with 20K miles from the BMW dealership at Glendale, CA. My car is under original manufacture warranty to this day but I also have paid for an extra warranty and maintenance program. On December 26th, 2021, as I was driving back from Las Vegas on highway 15, about 40 miles into the trip, my car dash displayed an error message "Charging Malfunction" immediately after this error, the entire car systems INCLUDING BREAKS AND STEERING WHEEL! stopped working. I lost control of my car and my car went towards the right side of the road where there's no asphalt and it's all dirt and pebbles. car was finally stopped with the help of manual handbrake but I was terrified and I felt lucky to survive the incident. BMW roadside assistance towed my car to the BMW dealership in Las Vegas since it's the closes dealer. they said they don't have any loaner car and I should get rentals and they will pay for it at the end since it's part of my warranty is to provide "Transportation" while the car is at the shop. they also said once my car is fixed, they will "reunite" my car in Los Angeles. 2 days after, the dealership declined any repair due to a leak on the radiator and I was told my car was "Overheated". Although my car had no indication of overheating ever or at the time of the incident. The picture I took from the error also shows the temperature of my car which is normal. See picture. I can't wrap my head around losing break and steering wheel without any prior error or indication of overheated car. BMW is can't explain why and neither can my insurance after reviewing my car's computer logs, how could I trust driving this car again if break and steering wheel could fail without any prior indication of overheating or low coolant or ANY error? A car that is still under manufacturer warranty with only 31K miles! who will be responsible if I crash and get injured or die if this happens next time?
Electrical system, Vehicle speed control, Engine, Dec 18, 2020
VEHICLE HAD 300 MILES ON IT. ALL POWER WENT OUT IN THE VEHICLE INCLUDING THE STEERING GOING STRAIGHT 45MPH WITH MY SMALL CHILD IN THE CAR. ALMOST DIED, BUT WAS ABLE TO CONTROL CAR TO GET IT TO THE SIDE OF THE ROAD ALMOST GETTING HIT HEAD ON. CALLED BMW FROM WITHIN THE CAR AND WENT LATER THAT DAY TO GET A LOANER. I REFUSED TO TAKE BACK CAR DUE TO SAFETY ISSUES. AFTER A WEEK OF THEM "FIXING" IT THEY TOLD ME THAT IT WAS A MAIN CONTROL PANEL FOR THE FUEL PUMP THAT WENT OUT. I DO SEE THROUGH WHEN CHECKING RECALLS FOR 2018 BMWS THAT THERE WAS ONE ISSUED FOR A PUMP, BUT NOT UNTIL SEPTEMBER 2018. THIS HAPPENED TO ME IN MARCH OF 2018, SO IF IT IS THE SAME ISSUE THE RECALL SHOULD BE SHORTENED.
Electrical system, Dec 2, 2020
TL* THE CONTACT OWNS A 2018 BMW 320I. THE CONTACT STATED THAT RODENTS WERE FOUND EATING THE WIRES IN THE ENGINE COMPARTMENT. THE CONTACT STATED THAT THE DRIVER SIDE SPEAKERS WERE EMITTING A LOUD NOISE. THE VEHICLE WAS TAKEN TO PAUL MILLER BMW (1515 NJ-23, WAYNE, NJ 07470) WHERE NO FAILURE WAS DIAGNOSED HOWEVER, THE SPEAKER AND WIRES WERE REPLACED. THE CONTACT STATED THAT THE FAILURE RECURRED AS WIRES WERE FOUND CHEWED IN THE VEHICLE. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHOM INFORMED HIM THAT CHIPMUNKS WERE ENTERING THE VEHICLE THROUGH THE VENTILATION SYSTEM. THE CONTACT STATED THAT THERE WAS NO GRILL ON THE FRONT OF THE VEHICLE WHICH WAS ALLOWING THE RODENTS IN THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE CONTACT WAS INFORMED BY THE DEALER THAT THE FAILURE WAS NOT COVERED UNDER WARRANTY. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 10,000.
Electrical system, Sep 1, 2020
INCE DECEMBER OF 2019 I HAVE HAD CONTINUOUS PROBLEMS WITH MY CAR AND MY IPHONE. I HAVE RESPONSIBLY GONE TO DEALERSHIP FAR TOO MANY TIMES TO HAVE THIS REPAIRED. CALLS HAVE DROPPED WHILE I'M ON THE PHONE WITH CLIENTS WHO ARE EMOTIONALLY FRAGILE. (I AM A THERAPIST ). THE CALLS CONTINUALLY DROPPED AND AFTER LOOKING AT THE ISSUE THE SERVICE DEPT DEALERSHIP TOLD ME IT WAS MY PHONE. I WENT TO APPLE AND GOT A BRAND NEW TELEPHONE AND THE ISSUE HAPPENED AGAIN. SO CLEARLY IT WASN'T MY PHONE. THEY REPLACED SOME PARTS BUT I HAVEN'T DRIVEN MY CAR DUE TO COVID. I GOT IN THE CAR TO FIND MY MUSIC FROM MY TELEPHONE NO LONGER PLAYS THROUGH THE STEREO AS IT DID PRIOR. BMW HAS ADMITTED TO ME THEY HAVE AN ELECTRICAL ISSUES WITH THE 2018 BMW AND COMPARABILITY OF THE IPHONE. THE DEALERSHIP HAD A RESPONSIBILITY TO DISCLOSE THIS WHEN I LEASED THE CAR THE OMITTED THIS IMPORTANT INFORMATION THAT WOULD CAUSE ME TO PAUSE IN LEASING IT AS ITS IMPERATIVE TO MY JOB AND BUSINESS TO BE ABLE TO TALK AND RECUR VERY CALLS FROM CLIENTS. I TRIED TO RESOLVE THIS WITH BMW CORP AND THEY OFFERED NO MONITORY OR ANY RESOLUTION FOR MY UNREASONABLE NUMBER OF TRIPS TO THE DEALERSHIP, FOR INCONVENIENCING MENTALLY FRAGILE PEOPLE AND MY TIME. THEY ALSO DID NOT DISCLOSE THIS INFORMATION THEY CLEARLY ARE AWARE OF WHEN I LEASED THE VEHICLE.
Electrical system, Other or unspecified, Electronic stability control (ESC), Jul 18, 2019
THIS CAR DOESN'T HAVE A WAY FOR DRIVERS TO PUT THE GEAR IN NEUTRAL IF THE ELECTRICAL PANEL AND THE ENGINE IS DEAD. I WAS IN THE FLOODED AREA IN THE MIDDLE OF THE ROAD AND FELT SCARED WHEN BIG TRUCKS PASSED ME SIDE BY SIDE. EVEN THE SHERIFF WHO HELPED ME COULDN'T FIND IT IN THE OWNERS MANUAL. I HAVE A 12 MONTHS OLD GRANDSON AND I DON'T FEEL SAFE DRIVING THIS CAR.