The contact owns a 2020 BMW M4. The contact stated while driving approximately 40 MPH, there was a failure with the wheelbase and the front end was raising off the ground while turning. The contact stated there was no warning light illuminated. The contact performed a personal diagnosis with adaptive mobility deactivated. The vehicle was towed to the residence and then towed to the local dealer to be diagnosed. The contact was informed that the engine needed to be replaced. The contact stated that the dealer claimed to have replaced the engine, and repaired the rear and front suspensions; however, the failure reoccurred. The manufacturer was notified of the failure. The approximate failure mileage was 2,200.
The worst 2020 BMW M4 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Engine1
- Suspension1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine1
- Suspension1
Recalls 2
Fuel system, gasoline: fuel injection system
- What is wrong
- BMW of North America, LLC (BMW) is recalling certain 2020-2021 M2 Coupe and 2020 M4 Coupe vehicles. Fuel injectors may have been installed without a damping component which is used to reduce vibration. If a damping component is not present, vibration will increase at the connection between the fuel line and the fuel rail, which over time, can result in damage at the connection.
- Risk
- A damaged connection between the fuel line and the fuel rail could lead to a fuel leak and, in the presence of an ignition source, increase the risk of a fire.
- Remedy
- BMW will notify owners, and dealers will inspect the fuel injectors and if a damping component is missing, the injectors and the fuel rail will be replaced, free of charge. The recall began December 18, 2020. Owners may contact BMW customer service at 1‑800‑525‑7417.
Recall number 20V666000 · Recall details
Air bags: knee bolster
- What is wrong
- BMW of North America, LLC (BMW) is recalling certain 2019-2020 230i, 230i xDrive, M240i, M240i xDrive, M2 Competition Coupe, 430i, 430i xDrive, 440i, 440i xDrive, M4, and 2019 330i xDrive Sportswagon vehicles. The driver and passenger knee air bag assemblies may have been improperly folded and assembled.
- Risk
- An improperly folded and assembled air bag may not deploy as intended, increasing risk of injury.
- Remedy
- BMW will notify owners, and dealers will replace the knee air bag modules, free of charge. The recall began July 8, 2019. Owners may contact BMW customer service at 1‑800‑525‑7417.
Recall number 19V352000 · Recall details
Technical service bulletins for the 2020 BMW M4 48
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- The coverage period for qualifying lower rear side panel water drain repair that addresses the issues...
- While driving on a smooth and/or unevenroad, a “cracking” sound is heard from therear wheel arch area...
- While driving on a smooth and/or uneven road, a “cracking” sound is heard from the rear wheel arch area...
- A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of...
- The electrical system of BMW vehicles has been subject to an ongoing development process over the last few...
- With the vehicle is on a lift and the front struts are in the extended position, there may be a cracking...
- Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop
- Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.
- After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes...
- Exterior rear lights do not work.
What 2020 BMW M4 owners say
Most recent owner complaints, unedited.
Compare the 2020 BMW M4
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Questions about the 2020 BMW M4
Is the 2020 BMW M4 reliable?
Owners have filed 1 complaint about the 2020 BMW M4, fewer than a typical M4 model year.
What is the most common problem with the 2020 BMW M4?
Engine and cooling, with 1 complaint. Next is suspension (1).
How many recalls does the 2020 BMW M4 have?
2 recalls, covering fuel system, gasoline and air bags.
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