NHTSA (USA)High Risk
At a glance
What can fail
The front roof panel between the windshield and panoramic sunroof may have been improperly bonded during a prior repair, causing the panel to detach from the vehicle.
The 2018 Mercedes-Benz GLC 350 E has 7 recalls, the most serious involving the driver-side airbag inflator, which can rupture during deployment and send sharp metal fragments into the cabin, risking serious injury or death.
Two recalls address the same rear seatbelt problem: the latch plates for the outboard rear seats can retract into the interior door paneling, leaving rear passengers unable to buckle in at all. On the structural side, the front roof panel between the windshield and panoramic sunroof may not be properly bonded and can detach while driving, creating a hazard for other vehicles. The front passenger airbag warning display can also misread the seat as occupied when the airbag is actually switched off, meaning a passenger may believe they are protected in a crash when they are not. There is also a separate issue where the driver airbag can deploy without a crash occurring, which itself raises the risk of injury. Finally, on vehicles with LED headlights, the front turn signals may glow pink or violet rather than amber, making them harder for other drivers to recognize.
At a glance
What can fail
The front roof panel between the windshield and panoramic sunroof may have been improperly bonded during a prior repair, causing the panel to detach from the vehicle.
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What the fix does
Dealers will replace the front roof panel at no charge to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The passenger side air bag status may not display correctly on the instrument cluster in certain 2018-2019 C-Class and GLC-Class vehicles with Audio 20 head units.
What the fix does
Dealers will update the audio head unit software at no cost to correct the air bag status display.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The seat belt latch plates on the outboard rear seats may retract into the interior paneling, making the seat belts unusable.
What the fix does
Dealers will install felt strips between the C-pillar and rear side paneling to prevent the latch plates from retracting.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front turn signals may display pink or violet light instead of the required amber color, failing to meet federal lighting standards.
What the fix does
Dealers will inspect the turn signal color and replace the LED module if needed, at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The driver-side air bag inflator housing may be made from defective steel. During deployment, this defect could cause the inflator to fail to properly inflate the air bag and potentially rupture.
What the fix does
Dealers will replace the front driver air bag module at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The seat belt latch plates on the outboard rear seats may retract into the interior paneling, making the seat belts unusable.
What the fix does
Dealers will install a buffer to the c-pillar paneling to prevent the latch plates from retracting.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The driver's airbag may deploy unexpectedly if the steering components lack proper grounding and the airbag clockspring is broken, allowing electrostatic discharge to trigger deployment.
What the fix does
Dealers will add grounding to the steering components to prevent electrostatic discharge from triggering the airbag.
Summarized — see the official notice for exact wording, dates, and contacts.