2020 Bmw 840I problems and owner complaints

My vehicle mileage was about 50,000 miles and well maintained by BMW dealership in my area. I was driving to work when suddenly my vehicle alerted me to a fault on display panel showing a power supply fault. The message said i should stop driving and call roadside assistance. The vehicle was towed to BMW dealership. There were no prior warnings or messages or symptoms in relations to this fault. The dealership confirmed that the water pump failed, and caused the drive belt to dislodge, also caused the alternator to malfunction and eventually da…

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The Gear Shift area flawed design and defective assembly allows fluid spill to short out transmission and shifting ability. Assembly is not sealed correctly which allows a spilled fluid to leak through the gearshift on and into the the GWS. The GWS was not sealed causing a short in the the assembly & the need for its replacement at substantial cost to the owner. The drink holder is place next to gearshift area with no consideration that spilled fluid will cause the car to shut down and the GWS replacement. 06/21/2022

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My vehicle mileage was about 50,000 miles and well maintained by BMW dealership in my area. I was driving to work when suddenly my vehicle alerted me to a fault on display panel showing a power supply fault. The message said i should stop driving and call roadside assistance. The vehicle was towed to BMW dealership. There were no prior warnings or messages or symptoms in relations to this fault. The dealership confirmed that the water pump failed, and caused the drive belt to dislodge, also caused the alternator to malfunction and eventually da…

Look up ODI 11609934 at NHTSA ↗

Safety was compromised by drivetrain instability and a federal recall involving a starter motor defect that poses a fire risk. Despite this, BMW of Arlington has refused to authorize repairs or allow BMW of Austin to complete the necessary work, even after a $13,565 drivetrain failure diagnosis. On October 4, 2025, our 2022 BMW 840i became inoperable due to worn splines in the rear differential and drive shaft. BMW of Austin confirmed the failure was consistent with prior service-induced damage. The component is available for inspection. The iss…

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While driving, the vehicle experienced a sudden catastrophic failure involving the engine and turbocharger, resulting in an immediate loss of power and the vehicle becoming disabled in an active roadway. The failure occurred without warning and required a response from the San Diego Police Department due to the vehicle being immobilized in traffic. This created a hazardous situation for the driver and surrounding vehicles. The vehicle had approximately 26,000 miles at the time of failure. The vehicle was later inspected by an authorized BMW d…

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Drive Shaft Failed a second time within a year. This time they are saying the Differential stripped it this time. Both incidents i was on highway and car completed stalled out of the randomly no warning or alerts both times on interstate. BMW just provided services to my car i had front brakes replaced, oil change and open recall of starter repaired. Everything checked out to be good along with drive shaft and differential. Now they need replaced per BMW.

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While driving, the vehicle experienced a sudden catastrophic failure involving the engine and turbocharger, resulting in an immediate loss of power and the vehicle becoming disabled in an active roadway. The failure occurred without warning and required a response from the San Diego Police Department due to the vehicle being immobilized in traffic. This created a hazardous situation for the driver and surrounding vehicles. The vehicle had approximately 26,000 miles at the time of failure. The vehicle was later inspected by an authorized BMW d…

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THE NAVIGATION WILL STATE THE PLACE THAT YOU ARE PHYSICALLY LOCATED ACCURATELY. FOR EXAMPLE WHEN I WAS AT BMW IN DELRAY BEACH FL THE NAVIGATION TELLS YOU THAT YOU ARE AT THE LOCATION. WHEN YOU PUT IN THE ADDRESS WHERE THE CAR IS PHYSICALLY LOCATED TO NAVIGATE TO, INSTEAD OF SAYING THAT YOU HAVE REACHED YOUR DESTINATION. THE NAVIGATION WILL TAKE YOU MILES AWAY AND SAY THAT YOU HAVE REACHED YOUR DESTINATION. THIS IS CLEARLY A SAFETY ISSUE AS THIS CAN TAKE YOU INTO A RIVER, BOAT RAMP AND OR PLACE YOU IN A DANGEROUS SITUATION. DELRAY BMW IN FL…

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I leased this car Jan. 2 2025 and have now had multiple cracks on 3 out of 4 wheels on the car which has been repaired and now the right front wheel has been replaced with the tire and in the dealership again needing to replace the rear 2 wheels secondary to cracks with what BMW has told me that the front right tire needs to be replaced again which was recently replaced in april because of a cracked rim and the two rear wheels need to be replaced which I replaced the right rear wheel about 1 year ago. This is now 3 wheels and 3 tires that I ha…

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Safety was compromised by drivetrain instability and a federal recall involving a starter motor defect that poses a fire risk. Despite this, BMW of Arlington has refused to authorize repairs or allow BMW of Austin to complete the necessary work, even after a $13,565 drivetrain failure diagnosis. On October 4, 2025, our 2022 BMW 840i became inoperable due to worn splines in the rear differential and drive shaft. BMW of Austin confirmed the failure was consistent with prior service-induced damage. The component is available for inspection. The iss…

Look up ODI 11694669 at NHTSA ↗

I leased this car Jan. 2 2025 and have now had multiple cracks on 3 out of 4 wheels on the car which has been repaired and now the right front wheel has been replaced with the tire and in the dealership again needing to replace the rear 2 wheels secondary to cracks with what BMW has told me that the front right tire needs to be replaced again which was recently replaced in april because of a cracked rim and the two rear wheels need to be replaced which I replaced the right rear wheel about 1 year ago. This is now 3 wheels and 3 tires that I ha…

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While driving, the vehicle experienced a sudden catastrophic failure involving the engine and turbocharger, resulting in an immediate loss of power and the vehicle becoming disabled in an active roadway. The failure occurred without warning and required a response from the San Diego Police Department due to the vehicle being immobilized in traffic. This created a hazardous situation for the driver and surrounding vehicles. The vehicle had approximately 26,000 miles at the time of failure. The vehicle was later inspected by an authorized BMW d…

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The contact owns a 2020 BMW 840I. The contact stated while driving 30 MPH, the vehicle abruptly decelerated and nearly came to a complete stop. The contact was able to pull to the shoulder of the roadway, where the failure persisted. Several unknown warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the integrated braking system, resulting in a brake seizure. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V062…

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THE LANE KEEPING DRIVING ASSISTANCE/DRIVING ASSISTANCE PRO ON THE 2020 BMW 840I GRAN COUPE PRODUCES A SUDDEN LOUD "BARK" WHEN THE ASSISTANCE SYSTEM LOSES SIGHT OF THE LANE MARKERS. THAT OFTEN HAPPENS IN INTERSECTIONS BUT CAN HAPPEN ANYWHERE WHERE THE LANE MARKERS ARE WORN. I BOUGHT THE CAR ON 2/29/2020 AND IT HAS HAPPENED MANY TIMES SINCE THEN AND NOT ONLY ON THE DATE SHOWN. THE SUDDEN LOUD "BARK" IS A DISTRACTION, A NUISANCE AND TOTALLY UNNECESSARY SINCE THE INSTRUMENT PANEL ALSO HAS A LARGE DISPLAY SHOWING THE STATUS OF THE DRIVING ASSISTANCE…

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