The 2022 Mercedes-Benz C Class has 5 recalls, the most serious involving electrical and powertrain defects that can cut power to the wheels or start a fire. Loose ground connection bolts on 12V and 48V circuits can cause wiring to overheat and melt, creating a fire risk; on plug-in hybrid models, this can also disable the electric drive system. A similar overheating and fire risk exists at the pre-fuse box, where a loose wire connection can also cause a sudden loss of drive power. On the powertrain side, a transmission wiring harness that is too short can be damaged by contact with the front driveshaft, again cutting power to the wheels. There is also a water intrusion issue: if water leaks into the trunk and short circuits the signal acquisition module, the tail lamps and rearview camera can stop working and the rear seat backrests may fold unexpectedly, with a secondary fire risk. Finally, a small number of vehicles may have a driver's seatbelt that was not installed correctly and can loosen and detach over time, reducing protection in a crash.
At a glance
What can fail
The driver's seat belt may not have been installed correctly. Over time, it could loosen and detach.
What the fix does
A Mercedes-Benz dealership will inspect the driver's seat belt and reinstall the safety cap if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
We may earn a commission for purchases made through these links.
At a glance
What can fail
A wire in the pre-fuse box may not be tightened properly, causing the connection to loosen. This can cut power to the wheels and cause wiring to overheat.
What the fix does
A dealership will tighten the connection in the pre-fuse box and replace any damaged parts as needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The transmission wiring harness may be too short and could rub against the front driveshaft, damaging the wires and cutting power to the wheels.
What the fix does
A dealership will inspect the wiring harness and re-route it away from the driveshaft if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Some ground connection bolts may not be properly tightened, causing the wiring harness to overheat and melt. On plug-in hybrids, this can also disable the electric drive system.
What the fix does
Dealership will inspect ground connections and tighten or repair them as needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Water leaks into the trunk and damages the signal module, which can cause tail lamps, rearview camera, or rear seat backrests to malfunction.
What the fix does
A protective cover will be installed over the signal module at a dealership to prevent water from entering and damaging it.
Summarized — see the official notice for exact wording, dates, and contacts.
