2018 Mercedes-Benz GLC 300 recalls and problems
The 2018 Mercedes-Benz GLC 300 has 12 safety recalls and 87 owner complaints filed with NHTSA. Recall repairs are free at any Mercedes-Benz dealer.
Recalls may cover only some 2018 Mercedes-Benz GLC 300 vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.
2018 Mercedes-Benz GLC 300 recalls
Recall 23V-854: Structure
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014-2020 C-Class, CLA, GLA, S-Class, GLC, and GLE vehicles. Please refer to MBUSA's recall report for specific vehicle details. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair, allowing the front panel to detach from the vehicle.
Risk: A detached roof panel can become a road hazard, increasing the risk of a crash.
Fix: Dealers will replace the front panel, free of charge. Owner notification letters were mailed on August 2, 2024. Owner notification letters will be mailed in phases, on, March 22,2024, and August 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 21V-197.
Recall 22V-365: Communication, Electrical System
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.
Risk: A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Fix: The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.
Recall 21V-197: Structure
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018 GLC63 AMG, 2014-2017 S550, 2018-2020 S450, 2016-2019 GLE63 Coupe AMG, 2016 GLE450 Coupe, 2014-2020 S63 AMG, 2018-2019 S560, and 2019 GLC350e vehicles equipped with a panoramic sunroof. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair.
Risk: The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the risk of a crash.
Fix: Mercedes-Benz dealer will remove the bonded panel and will install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive, free of charge. Owner notification letters were mailed on September 3, 2021 and October 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall 21V-072: Communication
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2019 C300, E300, 2018-2020 CLA250, 2020 CLS450, AMG E53, AMG GT53, GLE450, 2018 AMG E63, AMG GTA, 2017-2020 GLA250, GLC300, 2019 GLC350, AMG GLC43, 2017-2018 GLE350, 2019 AMG GLC 43, GLC350, GLE400, 2017 GLS450, S550, C300 Cabrio, and 2018-2019 S560 vehicles. On June 18, 2021, an additional 9 vehicles were added, including certain 2021 GLA250, GLC300, 2018 S450, E400, and 2017 CLA250 vehicles. The communication module might have been inadvertently deactivated during a service visit, which could have disabled the Emergency Call (eCall) function.
Risk: A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Fix: MBUSA will notify owners, and dealers will inspect the communication module and activate it, if necessary, free of charge. The recall began March 31, 2021. Letters for the owners of the 9 additional vehicles were mailed July 9, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021030005.
Recall 21V-058: Communication, Electrical System
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Fix: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Recall 18V-838: Air Bags
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 C300 Cabriolet, C300 Coupe, C300 4Matic Cabriolet, C300, C300 4Matic Coupe, C300 4Matic, C43 AMG Cabriolet, C43 AMG Coupe, C63 S AMG Cabriolet, C350e Plug-In Hybrid, C63 AMG Cabriolet, C63 AMG Coupe, C63 S AMG Coupe, C63 AMG, C63 S AMG, 2018-2019 GLC300 4Matic Coupe, GLC300, GLC63 AMG Coupe, GLC300 4Matic, GLC350e Plug-In Hybrid, GLC43 AMG Coupe, GLC43 AMG, GLC63 S AMG Coupe, and GLC63 AMG vehicles equipped with Audio 20 head units and automatic child seat recognition. The status of the passenger side air bag may not display correctly.
Risk: If the passenger air bag is incorrectly displayed as 'ON' when it is not, a front seat passenger may be unaware that the air bag will not deploy in the event of a crash, increasing their risk of injury.
Fix: MBUSA will notify owners, and dealers will update the audio head unit software, free of charge. The recall began January 3, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018120009.
Recall 18V-683: Seat Belts, Structure
Problem: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2016-2018 Mercedes-Benz GLC300 and GLC300 4Matic, 2018 GLC350e and GLC63 AMG 4Matic and 2017-2018 GLC43 AMG 4Matic vehicles. The seat belt latch plates (the parts that insert into the buckles) for the outboard rear seats may retract into the interior paneling, preventing the occupants from being able to use the seat belts.
Risk: If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.
Fix: MBUSA will notify owners, and dealers will install felt strips between the C-pillar and rear side paneling, free of charge. The recall began November 2, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018100002.
Recall 18V-610: Exterior Lighting
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 GLC300 4MATIC Coupe, GLC300, GLC300 4MATIC, GLC350e 4MATIC, GLC43 AMG 4MATIC Coupe, and GLC43 AMG 4MATIC vehicles equipped with LED headlights. The front turn signals may have an incorrect color of pink or violet. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: Turn signals that are the wrong color may not be as easily recognized by other drivers, increasing the risk of a crash.
Fix: MBUSA will notify owners, and dealers will inspect the color of the turn signal, replacing the LED module as necessary, free of charge. The recall began November 2, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall 18V-208: Air Bags
Problem: Mercedes-Benz USA LLC (MBUSA) is recalling certain 2018 AMG GT, AMG GT C, GLC43 AMG 4Matic, GLC300, GLC300 4Matic and GLC350e 4Matic vehicles. The housing for the driver side air bag inflator may have been made with defective steel. In the event of an air bag deployment, the defective steel may cause the inflator to improperly inflate the driver-side air bag and potentially rupture.
Risk: In the event of a crash involving driver air bag deployment, an improperly inflated air bag and/or an inflator rupture with sharp metal fragments might result in serious injury or death to the driver or to occupants.
Fix: MBUSA will notify owners, and dealers will replace the front driver air bag module, free of charge. The recall is expected to begin May 29, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall 18V-177: Seat Belts, Structure
Problem: Mercedes Benz USA LLC (MBUSA) is recalling certain 2017-2018 GLC43 AMG, 2016-2018 GLC300 4Matic, 2016-2018 GLC300, 2018 GLC63 AMG 4Matic, and 2018 GLC350e 4Matic vehicles. The seat belt latch plates (the parts that insert into the buckles) for the outboard rear seats may retract into the interior paneling, preventing the occupants from being able to use the seat belts.
Risk: If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.
Fix: MBUSA will notify owners, and dealers will install a buffer to the c-pillar paneling, free of charge. The recall is expected to begin May 14, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018030012.
Recall 17V-715: Visibility
Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2018 GLC300, GLC300 4Matic, and GLC43 AMG vehicles. The fixed panoramic sun roof frontal and side plastic panels may have insufficient bonding, allowing the panels to separate during vehicle operation.
Risk: If the sun roof panels detach from the vehicle, it can increase the risk of a crash or injury for following traffic.
Fix: MBUSA will notify owners, and dealers will inspect the bonding on the sun roof panels, correcting it as necessary, free of charge. The recall is expected to begin December 2017. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2017110009.
Recall 17V-627: Air Bags
Problem: Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air bag clockspring is broken.
Risk: If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.
Fix: MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
2018 Mercedes-Benz GLC 300 problems reported by owners
| Problem area | Reports | |
|---|---|---|
| Engine | 28 | |
| Unknown or Other | 20 | |
| Electrical System | 13 | |
| Structure | 10 | |
| Power Train | 8 | |
| Seat Belts | 8 | |
| Fuel/Propulsion System | 7 | |
| Air Bags | 6 | |
| Service Brakes | 5 | |
| Vehicle Speed Control | 3 | |
| Steering | 3 | |
| Forward Collision Avoidance | 3 |
Most reported parts
- Structure › Body — 6
- Forward Collision Avoidance › Warnings — 2
- Structure › Body › Hatchback/Liftgate — 1
- Forward Collision Avoidance › Automatic Emergency Braking — 1
- Back Over Prevention › Rearview System Braking — 1
- Lane Departure › Blind Spot Detection — 1
- Power Train › Automatic Transmission — 1
Typical mileage at the time of the problem: 10,500 miles (median of owner reports).
Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.
Recent 2018 Mercedes-Benz GLC 300 complaints
Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.
Other Mercedes-Benz GLC 300 years
Compare all Mercedes-Benz GLC 300 years · All Mercedes-Benz models
Frequently asked questions
Does the 2018 Mercedes-Benz GLC 300 have any recalls?
Yes — NHTSA lists 12 recalls for the 2018 Mercedes-Benz GLC 300: 23V-854 (structure), 22V-365 (communication, electrical system), 21V-197 (structure), 21V-072 (communication), 21V-058 (communication, electrical system) and more. Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.
What is the most common problem with the 2018 Mercedes-Benz GLC 300?
Owners report engine problems most often (28 reports), followed by unknown or other (20). The typical mileage when problems were reported is about 10,500 miles.
Are Mercedes-Benz recall repairs free?
Yes. Safety recall repairs are free at authorized Mercedes-Benz dealers, whether you are the first owner or bought the car used.