Does the 2020-2021 Mercedes-Benz GLB-Class have a front axle carrier corrosion defect?
Yes, 2020-2021 GLB models are covered by NHTSA recall 21V-990 for corrosion of the front axle integral carrier, and rerev.com lists it as the top failure for those years. Symptoms include structural weakening of the front axle mounting points, which can lead to loss of steering control, component detachment, or increased crash risk. Before buying, check the VIN through the NHTSA recall checker and inspect the front axle carrier for corrosion or evidence of replacement. No specific repair cost is documented in the research, but it is considered a high-cost structural repair.