This page covers 5 recalls and EPA fuel economy for the 2021 BMW 540i.
27 mpg combined
8.7 L/100km
Midsize Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
The 2021 BMW 540i has 5 recalls, the most serious involving the rear output shafts on xDrive models, which can break and cause sudden loss of drive power or allow the vehicle to roll away if parked without the parking brake engaged.
A separate electrical concern involves the 12-volt battery connection, where increased resistance in the circuit can generate enough heat to start a fire. On the safety restraint side, certain seatbelt retractors may not function correctly in a crash, reducing the belt's ability to hold the occupant and raising the risk of injury. Two recalls address the rearview camera system: in one case, a portion of the camera's image can be partially blocked, and in another, a software fault can cause the image to be missing or reduced when reversing. Both conditions affect how much the driver can see behind the vehicle when backing up, particularly if the camera is the primary reference being used.
At a glance
What can fail
The passenger seat belt retractor may unlock too early before the belt fully retracts, reducing crash protection.
What the fix does
Dealers will inspect and replace the seat belt retractors if needed, at no cost.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
When shifting into Reverse, the rearview camera display may show a partially obscured image or fail to illuminate, reducing rear visibility.
What the fix does
Dealers will inspect and update the rearview camera software as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The output shafts that transfer engine power to the rear wheels may break due to a heat treatment error during manufacturing.
What the fix does
Dealers will replace the output shaft(s) at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The connection between the 48-volt battery and starter-generator may not be properly assembled, causing increased electrical resistance at the connection points.
What the fix does
Dealers will inspect the 48-volt battery and starter-generator connection and replace it if necessary, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The rearview camera image may be slightly obscured in certain areas, limiting rear visibility and not meeting federal safety standards.
What the fix does
Dealers will inspect the rearview camera and reprogram it with updated software if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
