| Variant | Engine | Drivetrain | Transmission | City | Highway | Combined | EV Range | Est. Annual Fuel Cost |
| GLC350e 4matic Plug-in Hybrid | 2L 4-Cyl | 4-Wheel Drive | Automatic 7-spd | 55 MPGe (24 MPG) | 57 MPGe (27 MPG) | 56 MPGe (25 MPG) | 10 mi EV (350 mi total) | $3,050 / yr |
| GLC300 | 2L 4-Cyl | Rear-Wheel Drive | Automatic 9-spd | 22 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| GLC300 4matic | 2L 4-Cyl | 4-Wheel Drive | Automatic 9-spd | 21 MPG | 28 MPG | 24 MPG | — | $3,150 / yr |
| GLC300 4matic Coupe | 2L 4-Cyl | 4-Wheel Drive | Automatic 9-spd | 22 MPG | 27 MPG | 24 MPG | — | $3,150 / yr |
| AMG GLC43 4matic | 3L 6-Cyl | 4-Wheel Drive | Automatic 9-spd | 18 MPG | 24 MPG | 20 MPG | — | $3,800 / yr |
| AMG GLC43 4matic Coupe | 3L 6-Cyl | 4-Wheel Drive | Automatic 9-spd | 18 MPG | 24 MPG | 20 MPG | — | $3,800 / yr |
| AMG GLC63 4matic | 4L 8-Cyl | 4-Wheel Drive | Automatic 9-spd | 16 MPG | 22 MPG | 18 MPG | — | $4,200 / yr |
| AMG GLC63 4matic Coupe | 4L 8-Cyl | 4-Wheel Drive | Automatic 9-spd | 15 MPG | 22 MPG | 18 MPG | — | $4,200 / yr |
| AMG GLC63 S 4matic Coupe | 4L 8-Cyl | 4-Wheel Drive | Automatic 9-spd | 15 MPG | 22 MPG | 18 MPG | — | $4,200 / yr |
Data Boundary Note: EPA specifications are shown by certified vehicle configuration. NHTSA complaints and recall totals are recorded at the model-year level across all configurations.
| Tested Drivetrain / Cab Variant | Overall Rating | Frontal Crash | Side Crash | Rollover Rating | Rollover Risk |
| -Class Coupe SUV 4WD | Not Rated | Not Rated | Not Rated | Not Rated | — |
| -Class PHEV SUV RWD | Not Rated | Not Rated | Not Rated | Not Rated | — |
| -Class Coupe SUV RWD | Not Rated | Not Rated | Not Rated | Not Rated | — |
Active Driver Assistance Systems (NHTSA Recorded): Forward Collision Warning (FCW) is documented as Optional and Lane Departure Warning (LDW) is documented as Optional in official NHTSA records for tested 2018 Mercedes-Benz GLC models.
View complete 2018 Mercedes-Benz GLC crash test & safety breakdown →
Top Reported Problem Categories
Ranked by total consumer complaint submissions recorded by NHTSA
Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.
View all 2018 Mercedes-Benz GLC problems & component breakdown (35 categories) →
Affected Component: STRUCTURE:BODY:ROOF AND PILLARS
Defect Summary: 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.
Free Manufacturer Remedy: 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.
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
Defect Summary: 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.
Free Manufacturer Remedy: 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.
Affected Component: STRUCTURE:BODY:ROOF AND PILLARS
Defect Summary: 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.
Free Manufacturer Remedy: 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.
View all 2018 Mercedes-Benz GLC recalls & campaign history (14 campaigns) →