Mercedes is recalling a total of 9,730 cars across two different issues connected to two different versions of the C-Class. Both problems surround wiring harnesses and both can cause affected cars to malfunction. Dealers will inspect and repair the issues on an as-needed basis.
In both recalls the models are the same. They include the 2023 Mercedes-AMG C43 and the 2022-2023 C300 sedan. It’s unclear just how much the populations of each recall overlap but one includes far more cars than the other.
In the first, Mercedes is recalling 8,178 cars, of which all but four are of the C300 variety. In the case of all, Mercedes believes that the transmission wiring harness might chafe on the drive shaft. If that happens, it could damage the wiring harness and eliminate vehicle propulsion.
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1,552 cars are included in the second recall for a loose ground bolt connection. 46 of those are of the AMG variety while the rest are regular C300s. In cases where that condition is present, it’s possible that the wiring harness could end up experiencing more resistance than usual. If that happens, the wiring harness could heat up, and “a risk of fire cannot be ruled out completed,” says Mercedes in its filing with the NHTSA.
Notably, it seems as though these issues aren’t with the same wiring harness even if some cars might end up included in both recalls. The larger recall references part numbers that are totally different from the smaller recall. Additionally, the parts supplier in each case is different too. In both cases, the solution is to have an authorized service technician inspect the wiring harnesses in question.
Should a repair need to be made, the tech can complete the work at that time. Mercedes says that drivers most likely won’t have any warning if their car has an issue. Those concerned about if they have a C-Class involved in the recall can contact their local dealer or the NHTSA directly at NHTSA.gov.
