2021 BMW 5 Series Problems & Owner Complaints

Electrical System 7 1 fire

“My family was driving home on California [XXX] approaching [XXX]. Suddenly we saw heavy white smoke coming from our vehicle. Vehicles behind us had to almost stop as the smoke was very thick and covered all lanes. We pulled over and turned off the car. I started checking the control panel for any issues or alerts and found none. We never received any indication of issues in the control panel or dashboard. My husband got out of the car and inspected the tires which were all ok. He opened the hood and immediately saw flames from the center bottom of the hood. We all got out of the vehicle immed…”
NHTSA complaint #11600531, 2024 · fire

“Starter engine failure. Car failed to start multiple times. Major safety hazard that can cause a short circuit, melt wiring harnesses, and spark an engine bay fire posing an immediate threat to life. Problem was inspected and confirmed by a dealer. Multiple waring lamps and messages appeared. Dealer report stated: STARTER MOTOR FAULTY. ENGINE ELECTRICAL SYSTEM CONCERN: C/S: REPEAT START ATTEMPT INTERMITTEN WARNING LIGHTS. Please issue recall for the safety of all drivers.”
NHTSA complaint #11749530, 2026

“The recall 25V-636 remains unresolved after more than 6 month passed since the manufacturer issued the campaign regarding the engine starter. I would like to see the NHTSA to put the manufacturer on notice that this is unacceptable. We cannot park the vehicle outside of structures permanently as this devalues the vehicle and creates a loss of use.”
NHTSA complaint #11736037, 2026

Service Brakes 4 2 crash

“Unintended car acceleration, with complete brake failure. No software warning icons in dash, no collision avoidance or ABS triggered even though car so equipped. Crashed into rear end of stationery vehicle,. [XXX] , MN police were called. Incident report # attached. (1st image) Western National Insurance Co. notified.Claim # attached (2nd image) Car will be inspected @ BMW dealership in Bloomington, MN 7/25/23. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”
NHTSA complaint #11533979, 2023 · crash

“After pulling into a parking space and stopping, the braking system became unresponsive. While stopped with the foot on the brakes, attempts to place the car in park failed. After pumping the brakes, the car rolled forward as the car idled and the brakes were unresponsive as it rolled through a corrugated metal wall and the car only stopped after pressing the ignition button to turn off the car, putting anyone in or near the car at that time at risk. The problem has been reported to the dealer and the dealer inspection is pending but the problem has not been isolated and not reproduced. No…”
NHTSA complaint #11465809, 2022 · crash

“In November 2025 my breaks quit working. I had AAA haul my car to a repair shop. They ran the codes on the car and found that it was related to a recall on 2021 BMW 540i's for the oil vacuum pump assembly, pan and gasket. I then had it towed to BMW and found out that my vin was not in the recall. BMW quoted me $4587 to repair this on a car with 45,000 miles. I then had it towed to a repair shop that replaced the oil vacuum pump assembly, oil pan, gasket and bolts for about $3700. I think that my vin should have been included in the recall. It was a obviously a common problem with my mod…”
NHTSA complaint #11717479, 2025

Engine 3

“Starter engine failure. Car failed to start multiple times. Major safety hazard that can cause a short circuit, melt wiring harnesses, and spark an engine bay fire posing an immediate threat to life. Problem was inspected and confirmed by a dealer. Multiple waring lamps and messages appeared. Dealer report stated: STARTER MOTOR FAULTY. ENGINE ELECTRICAL SYSTEM CONCERN: C/S: REPEAT START ATTEMPT INTERMITTEN WARNING LIGHTS. Please issue recall for the safety of all drivers.”
NHTSA complaint #11749530, 2026

“I have a 2021 BMW 530i. VIN [XXX] . I brought my vehicle to Pompano Beach BMW and Coconut Creek BMW in Florida. They said both my motor mounts have collapsed. I have discussed the matter with other experts and mechanics, and been told the failure of motor mounts is a serious safety issue and vehicle defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”
NHTSA complaint #11726067, 2026

“The contact owns a 2021 BMW 530I. The contact stated that upon starting the vehicle, the vehicle hesitated. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed with motor mount failure. There was an abnormal pulling sound detected. The vehicle was not repaired. The contact spoke with two experts and was informed that the failure should not have occurred. The manufacturer was made aware of the failure. The failure mileage was approximately 60,000.”
NHTSA complaint #11667076, 2025

Fuel/Propulsion System 3 1 fire

“My family was driving home on California [XXX] approaching [XXX]. Suddenly we saw heavy white smoke coming from our vehicle. Vehicles behind us had to almost stop as the smoke was very thick and covered all lanes. We pulled over and turned off the car. I started checking the control panel for any issues or alerts and found none. We never received any indication of issues in the control panel or dashboard. My husband got out of the car and inspected the tires which were all ok. He opened the hood and immediately saw flames from the center bottom of the hood. We all got out of the vehicle immed…”
NHTSA complaint #11600531, 2024 · fire

“Subject: Urgent Issue with EVAP System Failure Dear Safety Highway Control, I discovered that the EVAP system in my car has failed, confirmed by a computer diagnostic at the Body Shop. The dealer mentioned no recalls, so I contacted the recall department who advised me to contact you. The check engine light has been on, prompting this urgent report. Your prompt investigation is greatly appreciated. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”
NHTSA complaint #11636314, 2024

“I went to hospital several times - the car had defect of manufacture- gas fume released inside the car every time i drove the car I had nausea, drowsiness, vomiting because the car at the beginning was new I never assume the car was causing me illness which had a tremendously impact in to my health. I had to buy new cloth, new mattress and changed the carpet. My health was also impacted - I was diagnosed with granulomas on my lungs. the fume is clear, the cloth will smell gas, and particles of gasoline hazard will attached to the skin giving an allergic sensation. This almost killed and I wa…”
NHTSA complaint #11627560, 2023

Unknown Or Other 3 1 crash

“After pulling into a parking space and stopping, the braking system became unresponsive. While stopped with the foot on the brakes, attempts to place the car in park failed. After pumping the brakes, the car rolled forward as the car idled and the brakes were unresponsive as it rolled through a corrugated metal wall and the car only stopped after pressing the ignition button to turn off the car, putting anyone in or near the car at that time at risk. The problem has been reported to the dealer and the dealer inspection is pending but the problem has not been isolated and not reproduced. No…”
NHTSA complaint #11465809, 2022 · crash

“Good afternoon, I am writing regarding the recall affecting my BMW 2021 530i, VIN [XXX] . While I understand the importance of safety recalls, this issue has had a direct and measurable impact on the market value of my vehicle. Due to the recall, I have received reduced trade-in and resale offers, with dealers explicitly citing the recall as a reason for depreciation. This loss in value persists regardless of whether the recall remedy has been completed. I am therefore requesting compensation ($6000) for the depreciation caused by this recall, or financial adjustment or trade in. Please o…”
NHTSA complaint #11710100, 2026

“Design of acceleration pedal and seat are causing me leg pain and causing my leg to fall asleep while driving. This is dangerous. There is too much resistance of pedal and lots of force needed to accelerate car.”
NHTSA complaint #11433528, 2021

Air Bags 2

“I have a code Passanger restraint failure that will not come off unless I pay $2700 to fix. This coding came on after 3 months of getting the vehicle and I’m not the only with the same issue. This is a dangerous situation that Bmw is not recalling but putting this as the owners expense. If I were to get in an accident this will not deploy airbags or open the seat belt this can cause sever injuries or worst death.”
NHTSA complaint #11643861, 2025

“The contact owns a 2021 BMW 530I. The contact stated that the edge of the air bag leather cover was folding in, which enlarged the split between the air bag cover and the steering wheel. The vehicle was taken to an unknown dealer, where it was inspected, and the dealer informed the contact that the air bag leather cover was of poor quality. The dealer recommended the air bag replacement. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage…”
NHTSA complaint #11616620, 2024

Back Over Prevention 2

“The system does not provide any warning for rear cross traffic, visual or audio. The dealership that sold the car concluded on two occasions that the system was not working, but later said they were unable to find faults or fixes.”
NHTSA complaint #11595658, 2024

“RCTA system does not work (other than on rare, unpredictable occasions, and generally only when the alert is worthless) - when another vehicle or pedestrian is too close to the car to make any difference. I have had cars with RCTA for years and none of them failed to detect objects/vehicles/people at much greater distances from my vehicle that could reasonably be expected to collide with my vehicle if I continued to back up. All these other cars provided an adequate advance warning of an impending danger (another car, bike, pedestrian, etc. approaching my vehicle with which I might collide, et…”
NHTSA complaint #11515206, 2021

Power Train 2

“Starter engine failure. Car failed to start multiple times. Major safety hazard that can cause a short circuit, melt wiring harnesses, and spark an engine bay fire posing an immediate threat to life. Problem was inspected and confirmed by a dealer. Multiple waring lamps and messages appeared. Dealer report stated: STARTER MOTOR FAULTY. ENGINE ELECTRICAL SYSTEM CONCERN: C/S: REPEAT START ATTEMPT INTERMITTEN WARNING LIGHTS. Please issue recall for the safety of all drivers.”
NHTSA complaint #11749530, 2026

“The contact owns a 2021 BMW 540I. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. There was an abnormal sound coming from the vehicle before the vehicle lost motive power. No warning lights were illuminated. The contact stated that the vehicle failed to respond while in drive(D) or reverse(R). The vehicle was towed to the dealer, where it was diagnosed with a driveshaft failure. The contact was informed that the driveshaft needed to be replaced. The vehicle was not repaired. The contact r…”
NHTSA complaint #11727007, 2026

Seat Belts 2

“I have a code Passanger restraint failure that will not come off unless I pay $2700 to fix. This coding came on after 3 months of getting the vehicle and I’m not the only with the same issue. This is a dangerous situation that Bmw is not recalling but putting this as the owners expense. If I were to get in an accident this will not deploy airbags or open the seat belt this can cause sever injuries or worst death.”
NHTSA complaint #11643861, 2025

“The contact owns a 2021 BMW 540I. The contact stated that on multiple occasions, the front and rear passenger’s and driver’s side seat belts failed to detach after being connected. The contact stated that he forced the rear passenger’s side seat belt to detach with a screwdriver. No warning lights was illuminated. The vehicle was taken to the dealer where the dealer stated that candy was lodged in the buckle. The contact stated that the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 10,000.”
NHTSA complaint #11490291, 2022

Forward Collision Avoidance 1 1 crash

“Unintended car acceleration, with complete brake failure. No software warning icons in dash, no collision avoidance or ABS triggered even though car so equipped. Crashed into rear end of stationery vehicle,. [XXX] , MN police were called. Incident report # attached. (1st image) Western National Insurance Co. notified.Claim # attached (2nd image) Car will be inspected @ BMW dealership in Bloomington, MN 7/25/23. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”
NHTSA complaint #11533979, 2023 · crash

Seats 1

“Driver’s sport seat bottom has 19 degrees of rear tilt in the lowest setting. I am unable to flatten seat bottom causing Sciatica nerve pain which causes my legs to fall asleep while driving. I have owned several BMWs with sport seats and this is the first one that has caused problems. Base sport seat needs more adjust to lower degree of rear facing tilt.”
NHTSA complaint #11432687, 2021

Steering 1

“Intermittent vibration at highway speeds. Brought to the BMW dealership and they stated the right front wheel was out of round. I never hit a pothole or anything that would cause damage. The dealer "repaired" the wheel, but the problem still exists. Brought the vehicle back and am now told that BMW has started offering non-run flat tires on new cars. I feel that the run flat tires coupled with the low-profile wheels could be the issue. Also, feel that the wheels are poorly made and are prone to being warped.”
NHTSA complaint #11488196, 2022

Vehicle Speed Control 1 1 crash

“After pulling into a parking space and stopping, the braking system became unresponsive. While stopped with the foot on the brakes, attempts to place the car in park failed. After pumping the brakes, the car rolled forward as the car idled and the brakes were unresponsive as it rolled through a corrugated metal wall and the car only stopped after pressing the ignition button to turn off the car, putting anyone in or near the car at that time at risk. The problem has been reported to the dealer and the dealer inspection is pending but the problem has not been isolated and not reproduced. No…”
NHTSA complaint #11465809, 2022 · crash

Visibility 1

“The contact owns a 2021 BMW 530i. The contact stated that while driving at approximately 55 MPH, the sunroof exploded and glass entered into the cabin of the vehicle. The vehicle was taken to the dealer where it was diagnosed and the contact was informed that the failure was due to the weather. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.”
NHTSA complaint #11459013, 2022

Wheels 1

“Intermittent vibration at highway speeds. Brought to the BMW dealership and they stated the right front wheel was out of round. I never hit a pothole or anything that would cause damage. The dealer "repaired" the wheel, but the problem still exists. Brought the vehicle back and am now told that BMW has started offering non-run flat tires on new cars. I feel that the run flat tires coupled with the low-profile wheels could be the issue. Also, feel that the wheels are poorly made and are prone to being warped.”
NHTSA complaint #11488196, 2022