The 2020 Mercedes-Benz S 450 has 4 recalls, the most serious involving a front body panel that can detach from the roof structure while driving, creating a road hazard and raising the risk of a crash.
Loose side impact sensor connectors make up the next concern: if a connector works free, the airbags and seatbelts may not activate properly in a side collision, reducing occupant protection at the moment it matters most. The remaining two recalls both involve the vehicle's automatic emergency call system. In one case, the system can send emergency responders to the wrong location after a crash; in the other, the system may fail to connect to emergency services at all. Both issues are treated here as a single theme since they affect the same function, and together they mean that post-crash response could be delayed if the vehicle cannot accurately report its location or reach a call center.
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.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The side crash sensor connectors may loosen, potentially delaying airbag and seatbelt activation during a side impact crash.
What the fix does
Dealers will inspect and replace the side impact crash sensors as needed, at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front roof panel between the windshield and panoramic sunroof may not be properly bonded to the vehicle from a previous repair, risking separation.
What the fix does
The dealer will remove and replace the front roof panel using proper bonding materials and procedures at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
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.
