The 2019 Mercedes-Benz SL 450 has 4 recalls, the most serious involving a bolt on the rear axle carrier that can loosen over time and cause unexpected handling changes, raising the risk of a crash.
The front passenger airbag may have been improperly sewn, and the seam can tear during deployment, reducing the airbag's ability to protect the occupant in a crash. There is also a concern with the automatic emergency call system: in one recall, the system can become disabled and fail to connect to emergency services after a crash, while in a separate issue, it may transmit the wrong location to emergency responders. Both problems could delay help from reaching the vehicle following a collision.
At a glance
What can fail
A software error in the communication module's SIM card can prevent mobile network connection, which disables the emergency call (eCall) system.
What the fix does
The communication module software will be updated at no cost through an over-the-air update or by a dealer.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The communication module software may fail to send your vehicle's correct location to emergency services when the eCall system activates during a crash.
What the fix does
A dealer will update the communication module software, or the update will be sent over-the-air, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The bolt connection at the front-left mounting point of the rear axle carrier can weaken over time and fail, which may affect how the vehicle handles.
What the fix does
Dealers will inspect the front-left mounting point of the rear axle carrier. If the bolt connection is defective, Mercedes-Benz will offer to repurchase the vehicle.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front passenger air bag may have been improperly sewn. The seam could tear when the air bag deploys.
What the fix does
Dealers will replace the passenger air bag at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
