Mercedes-Benz C-Class Lemon Law

The most serious defect reported on the modern C-Class is a fuel-pump failure that can starve the engine of fuel and cause it to stall without warning. Mercedes-Benz recalled its 2021–2023 lineup — including the C-Class — after determining the fuel pump's internal components could become damaged and shut the pump down, resulting in a loss of drive power. Mercedes has said this fuel-pump action affected roughly 143,551 vehicles across models, and dealers were directed to replace the pump free of charge.

A stall in moving traffic or on the highway is exactly the kind of safety defect California's Lemon Law treats most seriously, and it takes fewer failed repair attempts to qualify a vehicle when a defect can leave a driver stranded or unable to accelerate out of danger.

The C-Class also runs a 48-volt mild-hybrid system with an integrated starter-generator and a network of sensitive electronics. Owners report electrical faults, warning-light cascades, and drivability issues tied to this architecture. When the fuel-pump repair doesn't hold, the stalling returns, or your C-Class sits at the dealer waiting on parts, that is where California's Lemon Law comes in.

A recall is not automatically a lemon — it's the manufacturer acknowledging a defect and offering a free repair. California's Lemon Law (the Song-Beverly Act) comes into play when a substantial defect can't be fixed after a reasonable number of attempts, or when your C-Class has been out of service for 30 or more cumulative days.

If your Mercedes-Benz C-Class qualifies, you may be entitled to a buyback (a refund of what you've paid, minus a mileage offset), a replacement vehicle, or a cash-and-keep settlement — and Mercedes-Benz pays your attorney fees on a successful claim, so pursuing your case costs you nothing out of pocket.