Mercedes-Benz Glc 300 Recalls

The Mercedes-Benz GLC 300 has 45 recalls spanning the 2018–2026 model years, with the most serious recent issue being a steering coupling bolt on 2023–2026 models that can work loose from the steering rack, causing the driver to lose steering control entirely.

The 2023–2026 generation carries several other high-priority issues. On 2023–2024 models, an 80-amp fuse manufactured incorrectly can fail and cut drive power or knock out the airbags and instrument cluster simultaneously; a separate recall covers 2023–2024 vehicles that received an incorrect fuse box during a prior repair attempt, with the same potential consequences. The 2024 model year has two structural concerns: the engine's integral carrier can fail at its welds and cause loss of vehicle control, and the rear axle differential bolts can loosen and separate the driveshaft from the axle, cutting drive power. On 2024 models, front, rear, and fixed side windows can detach and become road hazards, and the windshield may not properly support the front airbags during deployment. The 2023 model has a dashboard area where loose bolts can cause airbags to deploy incorrectly in a crash, and loose auxiliary heater wiring can overheat and start a fire. Also on 2023 models, front seat rails may be incorrectly attached to the body, and the high-pressure fuel pump can leak fuel and oil onto the road. A panoramic sunroof C-pillar issue on 2023–2025 models means the pillar may not absorb enough impact if a rear occupant's head contacts it in a crash. The 2026 model year has center rear seat belts that may lack the locking function needed to properly secure a child restraint. On 2025–2026 models, the infotainment control unit can reset while driving and blank out the instrument panel, including the speedometer.

The 2021–2023 model years share a fuel pump that can shut down without warning and cut drive power. The 2021 model year has side crash sensor connectors that can come loose and delay airbag and seatbelt activation in a side impact, as well as a seatbelt pretensioner issue that can prevent the belts and pre-safe system from functioning in a crash. The 2021 headlight electrical connections may not be watertight, causing headlight failure. Going back to 2020, a damaged power steering wiring harness can cause loss of steering assist or an electrical short that leads to a fire, and loose turbocharger oil line screws can allow oil to leak onto hot engine components and ignite. The 2020 model also has a left-rear seatback latch that may not hold against cargo in a crash, a driver's airbag module that may not be properly bolted down, loose side crash sensor connectors shared with 2021, and a radar sensor issue that can impair automatic emergency braking. Fuel injector seals on 2019–2020 models can leak near hot engine parts, raising fire risk. The 2019 model has two separate electric power steering issues where the assist can cut out unexpectedly, and a seatbelt pretensioner concern of its own.

The 2018 model year has the most concentrated set of earlier issues. The driver's airbag inflator housing may have been made with defective steel that can rupture during deployment, sending metal fragments into the cabin. A separate 2018 recall covers an airbag that can deploy without a crash