The 2018 Mercedes-Benz C 350 E has 5 recalls, the most serious involving the steering rack on rear-wheel-drive models, where a defect can impair steering control and raise the risk of a crash.
Two recalls relate to the front roof panel, the section between the windshield and the panoramic sunroof. In one case, the bonding adhesive can deteriorate and allow the panel to detach and become a road hazard. A separate recall covers vehicles where a prior repair may not have bonded that same panel correctly, leaving the same detachment risk for owners who believed the issue had already been addressed. On the safety systems side, the emergency call system can send responders to the wrong location after a crash, and the passenger seat occupant sensor can incorrectly show the front airbag as active when it will not actually deploy, leaving a front-seat passenger without that protection in a collision.
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.
What the fix does
Dealers will replace the front roof panel at no charge to you.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front roof panel between the windshield and panoramic sunroof may not be properly bonded to the vehicle from a previous repair, risking separation.
What the fix does
The dealer will remove and replace the front roof panel using proper bonding materials and procedures at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The communication module software may fail to send your vehicle's correct location to emergency services when the eCall system activates during a crash.
What the fix does
A dealer will update the communication module software, or the update will be sent over-the-air, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A locknut in the steering rack may break under heavy load, potentially causing the steering to lock in one position.
What the fix does
Dealers will replace the steering rack at no cost 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.
