RoadVitals

2018 BMW 330E Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints 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.
8
Latest Nov 9, 2026
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
6
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

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2018 BMW 330E, 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

  • Electrical535.7%
  • Engine535.7%
  • Brakes17.1%
  • Fuel system17.1%
  • Powertrain (other)17.1%
  • Steering17.1%

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

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

5
reports

From owner reports, verbatim

My car experience a starter malfunction which caused the starter to continue to run after car was shut off, the car experience a non start issue had to be towed at my expense $450 to the bmw dealership in [XXX] , they supposedly fixed the recall but car still won’t start . The service says it’s unrelated to the recall the service manager says they don’t know if it is or not without a diagnostic test and want me to pay to see if it’s related or not . I have the emails from service manager and bmw customer relations they say my warranty expired but this isn’t warranty issue it’s a fire safety recall issue and they failed to make sure it’s running safely and pass the cost to repair on to me INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11776705 · filed Nov 9, 2026

In October 2024, a "Drivetrain Malfunction" warning appeared on the dashboard (first noticed around October 8, 2024). The vehicle switched into hybrid mode and would no longer return to electric mode. Shortly after, the engine would not start at all. Mileage was approximately 46,400 miles. An authorized BMW dealer inspected the vehicle and found fault codes for the engine starter motor. After several inspections, the dealer confirmed the starter motor was faulty and replaced it with a new BMW genuine part. During the starter diagnosis, the dealer tested the auxiliary 12V battery and it passed the test. The dealer then documented on the repair order that the faulty starter drained the auxiliary battery. A rescue charge was attempted, but the battery could not be recovered and had to be replaced as well. This failure matches the defect described in Safety Recall 26V-441 (engine starter relay corrosion that can cause a short circuit and overheating of the starter). Our vehicle is covered by this recall. Safety risk: the vehicle became unable to start and was immobilized, and the drivetrain warning appeared while driving. According to the recall notice, this defect can also lead to a thermal event while driving or while parked with the ignition off. The failed parts were replaced in October 2024. Whether they are still available for inspection is UNKNOWN. After the recall was announced, the manufacturer reimbursed the starter motor replacement but refused to reimburse the auxiliary battery replacement, even though its own authorized dealer documented that the starter defect caused the battery failure. No written reason was given for the refusal.

NHTSA ID 11771225 · filed Oct 14, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

5
reports

From owner reports, verbatim

My car experience a starter malfunction which caused the starter to continue to run after car was shut off, the car experience a non start issue had to be towed at my expense $450 to the bmw dealership in [XXX] , they supposedly fixed the recall but car still won’t start . The service says it’s unrelated to the recall the service manager says they don’t know if it is or not without a diagnostic test and want me to pay to see if it’s related or not . I have the emails from service manager and bmw customer relations they say my warranty expired but this isn’t warranty issue it’s a fire safety recall issue and they failed to make sure it’s running safely and pass the cost to repair on to me INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11776705 · filed Nov 9, 2026

In October 2024, a "Drivetrain Malfunction" warning appeared on the dashboard (first noticed around October 8, 2024). The vehicle switched into hybrid mode and would no longer return to electric mode. Shortly after, the engine would not start at all. Mileage was approximately 46,400 miles. An authorized BMW dealer inspected the vehicle and found fault codes for the engine starter motor. After several inspections, the dealer confirmed the starter motor was faulty and replaced it with a new BMW genuine part. During the starter diagnosis, the dealer tested the auxiliary 12V battery and it passed the test. The dealer then documented on the repair order that the faulty starter drained the auxiliary battery. A rescue charge was attempted, but the battery could not be recovered and had to be replaced as well. This failure matches the defect described in Safety Recall 26V-441 (engine starter relay corrosion that can cause a short circuit and overheating of the starter). Our vehicle is covered by this recall. Safety risk: the vehicle became unable to start and was immobilized, and the drivetrain warning appeared while driving. According to the recall notice, this defect can also lead to a thermal event while driving or while parked with the ignition off. The failed parts were replaced in October 2024. Whether they are still available for inspection is UNKNOWN. After the recall was announced, the manufacturer reimbursed the starter motor replacement but refused to reimburse the auxiliary battery replacement, even though its own authorized dealer documented that the starter defect caused the battery failure. No written reason was given for the refusal.

NHTSA ID 11771225 · filed Oct 14, 2026

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.

1
report

From owner reports, verbatim

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?

NHTSA ID 11448905 · filed Jan 25, 2022

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.

1
report

From owner reports, verbatim

CAR MAKING A EXPLOSIVE, CRANKING MECHANICAL NOISE UPON UNLOCKING THE CAR BEFORE YOU EVEN OPEN THE DOOR. THERE SEEMS TO BE A FUEL PUMP MAKING NOISE FROM INSIDE A GAS TANK. BMW AUTHORIZED DEALERS ACKNOWLEDGED THE NOISE IS ASSOCIATED WITH A "HIGH PRESSURE FUEL PUMP" AND REFER TO THIS AS "NORMAL" I BELIEVE THE FUEL DELIVERY SYSTEM IN THIS CAR AND OTHER SIMILAR MODELS ARE THE RESULT OF DEFECTIVE COMPONENT(S) AND/OR A RESULT OF A FLAWED ENGINEERING. THIS NOISE HOWEVER CONTINUES ON WITH A HUMMING/BUZZING SOUNDS FOR SEVERAL MINUTES WHICH ALSO EFFECTS THE CAR'S OVERALL PERFORMANCE WHICH SEEMS TO BE CAUSING THE CAR TO PERFORM AT A DIMINISHED LEVEL OVERALL WHICH MAY OR MAY NOT AFFECT VEHICLE'S OVERALL SAFETY COMPONENTS SUCH AS BRAKES AND OTHER CONTROL APPARATUS. AT TIMES, UPON UNLOCKING THE CAR, IT FEELS AND VERY WELL SOUNDS LIKE THE VEHICLE IS ABOUT TO EXPLODE?! AND THIS BY ITSELF CAUSING A GRAVE CONCERN AND I FEEL THAT IT MUST BE INVESTIGATED, ESPECIALLY THAT BMW HAS BEEN RELUCTANT/UNABLE TO REPAIR DESPITE REPEATED 8 ATTEMPTS WITH CAR BEING IN SERVICE FOR OVER 30 DAYS. THIS CAR IS STILL UNDER MANUFACTURER'S WARRANTY. ALL REPAIR ORDERS HAVE BEEN DONE AT BMW AUTHORIZED DEALERSHIP. ALL REPAIR ORDER DOCUMENTS AS WELL AS A SHORT 15 SECONDS VIDEO CLIP ARE AVAILABLE UPON REQUEST.

NHTSA ID 11298636 · filed Jan 11, 2020

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.

1
report

From owner reports, verbatim

In October 2024, a "Drivetrain Malfunction" warning appeared on the dashboard (first noticed around October 8, 2024). The vehicle switched into hybrid mode and would no longer return to electric mode. Shortly after, the engine would not start at all. Mileage was approximately 46,400 miles. An authorized BMW dealer inspected the vehicle and found fault codes for the engine starter motor. After several inspections, the dealer confirmed the starter motor was faulty and replaced it with a new BMW genuine part. During the starter diagnosis, the dealer tested the auxiliary 12V battery and it passed the test. The dealer then documented on the repair order that the faulty starter drained the auxiliary battery. A rescue charge was attempted, but the battery could not be recovered and had to be replaced as well. This failure matches the defect described in Safety Recall 26V-441 (engine starter relay corrosion that can cause a short circuit and overheating of the starter). Our vehicle is covered by this recall. Safety risk: the vehicle became unable to start and was immobilized, and the drivetrain warning appeared while driving. According to the recall notice, this defect can also lead to a thermal event while driving or while parked with the ignition off. The failed parts were replaced in October 2024. Whether they are still available for inspection is UNKNOWN. After the recall was announced, the manufacturer reimbursed the starter motor replacement but refused to reimburse the auxiliary battery replacement, even though its own authorized dealer documented that the starter defect caused the battery failure. No written reason was given for the refusal.

NHTSA ID 11771225 · filed Oct 14, 2026

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

1
report

From owner reports, verbatim

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?

NHTSA ID 11448905 · filed Jan 25, 2022

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

Data on this page last refreshed .