On [XXX]. My car went into unintended acceleration at full throttle of 8000 RPMs. The engine was stuck at maximum power and would not slow down. My car slide until it hit a curb and was forced to stop. However, the engine was still running at full maximum capacity at full unintended acceleration. My [XXX] son had to go to ER and it almost cost the lives of 4 other people. I am very scared to ever drive this car as it is now a threat to safety for everyone driving near this car. Please report this to the BMW NA manufacturer since they have their engineering looking at the vehicle. Please call me with a resolution at [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The worst 2020 BMW M8 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Acceleration2
- Brakes1
- Driver assistance1
- Electrical1
- Engine1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Acceleration2
- Brakes1
- Driver assistance1
- Electrical1
- Engine1
- Fuel system1
- Visibility1
Recalls 3
Back over prevention: software
- What is wrong
- BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 xDrive40i, X7 xDrive50i, X7 M50i, Alpina XB7, 330i, 330i xDrive, M340i, M340i xDrive, and 8 Series Coupe, Convertible and Grand Coupe, 840i, 840i xDrive, M850i xDrive, M8, 2020-2021 530e, 530e xDrive, 330e, 330e xDrive, 745Le, 745Le xDrive, X5 xDrive45e, X3 xDrive30e, X6 sDrive40i, X6 xDrive40i, X6 xDrive50i, X6 M50i, X6M, 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 740i, 740Li, 740Li xDrive, M760i Drive, M760Li xDrive, 750Li xDrive Alpina, Alpina B7 xDrive, and 2021 4 Series Coupe 430i, 430i xDrive, M440i xDrive vehicles. When shifting into Reverse, a small portion of the rearview image may be obscured, or the screen may not illuminate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
- Risk
- If the driver relies on only the rearview camera image, the missing or reduced rearview image view can increase the risk of a crash or injury.
- Remedy
- BMW will notify owners, and dealers will inspect the rearview camera software and update it if necessary, free of charge. The recall began April 16, 2021. Owners may contact BMW customer service at 1‑800‑525‑7417.
Recall number 21V096000 · Recall details
Service brakes, hydraulic: power assist: hydraulic
- What is wrong
- BMW of North America, LLC (BMW) is recalling certain 2020-2021 8 Series Coupe, Grand Coupe and convertible 840i, 840i xDrive, M850i xDrive, M8 and 740 Li, 740 Li xDrive, 750 Li xDrive, M760 Li xDrive, X6 sDrive40i, X6 xDrive40i, X6 xdrive50i, X6 M50i, X6M, and 2019-2021 X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5 M50i, X5M, X7 xDrive40i, X7 xDrive50i, X7 M50i, and 2021 M3, M3 Competition, M4 Coupe, M4 Competition Coupe, X5 xDrive45e, 745 Le xDrive. The rotor and shaft within the integrated brake system may not have been welded properly and could separate during a hard braking event, possibly resulting in a loss of the Antilock Brake System (ABS) and braking assistance.
- Risk
- A loss of ABS and a reduction in braking assistance can increase the risk of a crash.
- Remedy
- BMW will notify owners, and dealers will replace the integrated brake system, free of charge. Owner notification letters were mailed on May 25, 2021. Owners may contact BMW customer service at 1‑800‑525‑7417.
Recall number 21V062000 · Recall details
Electrical system: wiring
- What is wrong
- BMW of North America, LLC (BMW) is recalling certain 2019-2020 M5 and 2020 M8 Gran Coupe, M8 Coupe, and M8 Convertible vehicles. The transmission wiring harness can become damaged, resulting in an electrical short circuit.
- Risk
- An electrical short circuit can cause the transmission to shift to neutral resulting in a loss of propulsion, increasing the risk of a crash.
- Remedy
- BMW will notify owners, and dealers will replace any damaged transmission harnesses. All harnesses will be rerouted and secured. These repairs will be performed, free of charge. The recall is expected to begin February 3, 2020. Owners may contact BMW customer service at 1‑800‑525‑7417.
Recall number 19V883000 · Recall details
Technical service bulletins for the 2020 BMW M8 162
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- The Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying repairs for the...
- The NVLD limited emission related warranty for defects in materials or workmanship has been extended to 15...
- The Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying repairs for the...
- Engine Return
- BMW AG has issued a Delivery Stop (effective April 15, 2024) on certain Model Year 2018
- The electrical system of BMW vehicles has been subject to an ongoing development process over the last few...
- At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when parking,...
- A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP)...
- The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3)....
- Situation
What 2020 BMW M8 owners say
Most recent owner complaints, unedited.
Engine misfire and loss of power. Too to bmw for check up. It was coolant tank leak into injectors. BMW is not replacing the tank as part of recall. It is changing only injectors even though the recall specifically addresses the tank causing the issue. BMW argument is as part of recall this was checked and tank was fine so not replaced as part or recall. Now it is not under warranty. Why are they repairing injectors if the tank car is not under warranty they should replace the tank also as it is the bad part causing this. The car has only 14k miles.
While driving, the vehicle immediately went into full unintended acceleration without any input from the accelerator pedal. I removed my foot completely from the pedal, but engine RPM increased to full 7000 rpm’s and the throttle was stuck there. The vehicle surged forward unexpectedly. The car spun in circles 180 degrees and wouldn’t stop. This was a sudden and unpredictable event. This created safety concerns for my [XXX] old and and we had to take him to the ER for his head injury. The car hit curbs and jumped onto the opposite side of traffic. BMW Dealer is currently opening a BMW STI case to investigate potential throttle or electronic control issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Tl* the contact owns a 2020 bmw m8. The contact stated that while driving in the rain at 55 MPH, the windshield became foggy. The contact activated the defroster/defogger however, failed to immediately clear the windshield. The contact pulled over and waited for the windshield to clear up. The contact resumed normal driving. On another occasion, the contact stated that while driving at 45 MPH, the failure recurred. The contact called bmw of kansas city south (1200 w 104th st, kansas city, mo 64114) where he was informed to bring in the vehicle in for an inspection. The manufacturer was also notified of the failure and referred the contact to the local dealer to be serviced. The vehicle was not repaired. The failure mileage was approximately 1,700.
Compare the 2020 BMW M8
Other model years
2020
Questions about the 2020 BMW M8
Is the 2020 BMW M8 reliable?
Owners have filed 4 complaints about the 2020 BMW M8, close to a typical M8 model year.
What is the most common problem with the 2020 BMW M8?
Acceleration and speed control, with 2 complaints. Next is brakes (1).
How many recalls does the 2020 BMW M8 have?
3 recalls, covering back over prevention, service brakes, hydraulic and electrical system.
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