NHTSA (USA)High Risk
At a glance
What can fail
The driver-side seat belt cover may not be properly installed on the seat belt tensioner, which can allow the seat belt anchor to come loose.
This page covers 8 recalls and 24 owner complaints for the 2022 Mercedes-Benz C 300.
For 2022 Mercedes-Benz C 300 owners, the most common complaints center on the forward collision avoidance system and the central infotainment screen. On the active braking side, owners report the system failing to engage or alert during potential collision situations, with sensors described as unresponsive. The infotainment screen, which controls climate, navigation, and the backup camera, is reported going completely blank, sometimes repeatedly, leaving owners without access to those functions until a service visit. Back-over prevention complaints tie directly to the screen issue, since the rear camera feeds through the same display. Electrical system reports also describe the screen going dark on startup. A single report mentions a fuel injector failure, and another describes a passenger seatbelt that doesn't latch smoothly or lock consistently, though neither appears across multiple complaints.
24
Total Complaints
1
Crash-Related
1
With Injuries
By System
The 2022 Mercedes-Benz C 300 has 8 recalls, the most serious involving multiple electrical wiring issues that can cause fires or sudden loss of drive power, and a fuel pump that can shut down without warning.
Three of the electrical recalls are closely related: a loose bolt at the pre-fuse box can cause a wire to overheat and catch fire, unsecured ground connections on the wiring harness can also lead to overheating and fire, and a transmission wiring harness that may be the wrong length can sustain damage and cut drive power. Separately, moisture can leak into the trunk-mounted signal acquisition module, causing an electrical short that may knock out rear exterior lights, disable the rearview camera, or trigger unintended rear seat folding. The fuel pump on certain vehicles can shut down and cause an abrupt loss of drive power.
On the safety equipment side, vehicles with a heated leather steering wheel have a recall where the hands-off detection feature can be deactivated, disabling driver attention warnings and the automatic emergency stop system that contacts first responders. There is also a front seatbelt concern: the driver-side seat belt cover may not be properly attached to the tensioner, which can allow the belt anchor to come loose and fail to hold the occupant in a crash.
At a glance
What can fail
The driver-side seat belt cover may not be properly installed on the seat belt tensioner, which can allow the seat belt anchor to come loose.
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
What the fix does
Dealers will inspect and repair the seat belt covers as needed at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The bolt that secures the electrical wire to the pre-fuse box may not be tight enough, causing the wire to overheat.
What the fix does
Dealers will inspect the wiring harness and repair it as needed at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel pump may unexpectedly shut down, causing the engine to lose power while driving.
What the fix does
The fuel pump will be replaced at no cost to you at an authorized Mercedes-Benz dealer.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The electrical wiring harness ground connections may not be properly secured, potentially causing the harness to overheat.
What the fix does
Dealers will inspect and repair the ground connections for the electrical wiring harness at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The transmission wiring harness may be incorrect length, causing it to become damaged and result in loss of drive power.
What the fix does
Dealers will inspect the transmission wiring harness routing and repair it as needed at no cost to you.
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
Dealers 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
Moisture can accumulate in the trunk and leak into the signal acquisition module, causing an electrical short circuit.
What the fix does
Dealers will install a cover for the signal acquisition module at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The hand detection system in the Active Distance Assist DISTRONIC may fail to sense when your hands leave the steering wheel due to a software error.
What the fix does
Dealers will reprogram the hand detection control unit software at no cost to restore proper hand-off detection.
Summarized — see the official notice for exact wording, dates, and contacts.