NHTSA (USA)High Risk
At a glance
What can fail
Water can collect on the air bag control unit, preventing the air bags from deploying properly in a crash.
The 2021 Mercedes-Benz Metris has 10 recalls, the most serious involving brake and fuel system risks: the brake fluid reservoir can detach and leak, and fuel hose connections at the engine can loosen and leak fuel, raising the risk of fire.
A separate fuel system concern involves the fuel pump shutting down unexpectedly, which can cut drive power while the vehicle is in motion. On the occupant safety side, the front passenger seat frame may not be properly welded, reducing its stability in a crash. There are also two related seatbelt concerns: the automatic locking retractors in passenger seatbelts can disengage too early, preventing a child safety seat from being held securely — though the lower anchor points are not affected by this defect. The airbag control unit on right-hand-drive models can accumulate water and fail to deploy the airbags properly in a crash. Rearview camera image may fail to appear when the vehicle is shifted into reverse due to loose infotainment connections, limiting the driver's view while backing up. A software fault in the communication module's SIM card can disable the automatic emergency call system, which could delay emergency responders after a collision.
At a glance
What can fail
Water can collect on the air bag control unit, preventing the air bags from deploying properly in a crash.
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What the fix does
A protective cover will be installed on the air bag control unit at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The electrical connections securing the infotainment system may come loose, preventing the rearview camera image from displaying on the screen.
What the fix does
Dealers will inspect the infotainment system connection and repair it if needed at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The infotainment system connection may loosen on certain vehicles. When you shift into reverse, the rearview camera image might not appear on the display.
What the fix does
A dealership technician will secure the infotainment system connection to restore rearview camera display functionality.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel pump may shut down unexpectedly, causing a loss of engine power while driving.
What the fix does
The dealer will replace the fuel pump at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
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 system.
What the fix does
The communication module software will be updated for free through an over-the-air update or by a dealer.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel hoses connecting to the engine may not be securely fastened, potentially causing fuel to leak.
What the fix does
Dealers will inspect the fuel hose connections and replace the clamps and hoses as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The brake fluid reservoir may be incorrectly mounted, allowing it to detach from the vehicle.
What the fix does
Dealers will inspect and repair the brake fluid reservoir mounting at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The passenger seat belt's automatic locking retractor may be defective, preventing it from properly locking to secure a child seat. The vehicle's lower anchor system is not affected.
What the fix does
The dealer will inspect the passenger seat belts and replace them if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The automatic locking retractor in the seat belt may stop working too early, preventing child car seats from locking securely.
What the fix does
Dealers will inspect the seat belt assemblies and replace them if needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front passenger seat frame base may not be welded properly, potentially causing structural failure.
What the fix does
Dealers will replace the seat frame base at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
