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2020 Mercedes-Benz Glc 300 Problems and Recalls
Owners filed 69 complaints with NHTSA about the 2020 Mercedes-Benz Glc 300, most often about the engine (30% of complaints). It is 4th of 11 Glc 300 model years by number of complaints and has 16 recalls.
Most common 2020 Mercedes-Benz Glc 300 problems
Engine
21 complaints · 30%The contact's wife owns a 2020 Mercedes-Benz glc300. The contact stated that while his wife was driving at an undisclosed speed, the vehicle stalled. The vehicle was towed to the dealer and diagnosed with ignition failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired and…
The contact owns a 2020 Mercedes-Benz glc300. The contact stated that while driving at an undisclosed speed, the engine misfired. In addition, the check engine warning light was illuminated. The contact was turned off and restarted the vehicle. The contact stated that the vehicle drove as needed. The contact stated…
Other or unspecified
15 complaints · 22%Received safety recall from mercedes benz (NHTSA recall #21v058) and have tried to schedule with dealer on several opportunities to get the repairs completed and they continue stating they cannot perform the recall repairs
I was driving and stopped car to make a turn waiting for incoming traffic to clear. When I went to accelerate after traffic cleared, the car would not go above 0.5 miles per hour. I made sure the gear had not shifted to neutral, it was on comfort drive. I changed to sports drive and the car still would not accelerate…
Backup camera
7 complaints · 10%Parts named most often: sensing system, rearview system braking.
The contact owns a 2020 Mercedes-Benz glc300. The contact stated that the rearview camera displayed a reverse mirror image. The contact related the failure to NHTSA campaign number: 22v232000 (back over prevention). The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was…
The contact owns a 2020 Mercedes-Benz glc300. The contact stated while attempting to reverse, the back over prevention camera displayed a blank screen. The vehicle was not taken to an independent mechanic or dealer to be diagnosed. The contact stated that the failure had occurred on several occasions. The vehicle was…
Driver assistance
6 complaints · 9%Parts named most often: automatic emergency braking, warnings, assist, warning.
While driving under an overpass the breaks activated abruptly and unexpectedly. We where going about 35 miles per hour and if it wasn't for the seat belts we would of hit the windshield. Luckily no one was following US up close.. It happened twice at the same spot where there is a shadow from the overpass (at same…
Steering
5 complaints · 7%The contact owns a 2020 Mercedes-Benz glc300 equipped with goodyear tires, tire line: eagle sport all season, tire size: 255/45/r20, dot number: [VIN]. The contact stated that within a year of purchasing the vehicle brand new, he noticed that there was significant amount of rubber coming off the outer side of the…
Electrical
5 complaints · 7%Parts named most often: ignition.
The contact's wife owns a 2020 Mercedes-Benz glc300. The contact stated that while his wife was driving at an undisclosed speed, the vehicle stalled. The vehicle was towed to the dealer and diagnosed with ignition failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired and…
The contact owns a 2020 Mercedes-Benz glc300. The contact stated that while operating the vehicle, the 12-volt battery warning light remained illuminated. The contact stated that while driving at various speeds, the vehicle shut off. The failure also occurred while driving on a busy freeway. The vehicle was towed to…
Lights
5 complaints · 7%Parts named most often: headlights.
The contact owns a 2020 Mercedes-Benz glc300. The contact stated while driving at an undisclosed speed during a rainstorm, the contact became aware that there was water inside the headlight assembly. Later, the contact stated that while driving at night, the headlamps were not functioning as needed. The contact stated…
Transmission
4 complaints · 6%
Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.
2020 Mercedes-Benz Glc 300 recalls
Lights: headlights
Risk: Incorrectly aimed headlights can reduce the visibility of oncoming traffic, increasing the risk of a crash.
Fix: Dealers will inspect the headlight adjustment and correct it if necessary, free of charge. Owner notification letters were mailed february 23, 2024. Owners may contact mbusa customer service at 1-800-367-6372.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2019-2022 glc 300, 2020 glc 350e, and 2020-2022 amg glc 43 vehicles. The headlights may be incorrectly adjusted too high and create a glare for oncoming traffic. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard number 108, "lamps, reflective devices, and associated equipment."
Body and structure: roof and pillars
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.
Full 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.
Infotainment and connectivity: auto crash notification
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.
Full 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.
Backup camera: display function
Risk: An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
Fix: Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed july 15, 2022. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2022060007.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2018-2021 cla-class, gle/gls-class, a-class, c-class, e-class, e-class coupe/convertible, gla/glb-class, glc-class, and cls-class vehicles. Please refer to mbusa's recall report for specific vehicle model details. The rearview camera may not display the rearview image due to a software error. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard number 111, "rear visibility."
Fuel system: injectors
Risk: A fuel leak in the presence of an ignition source, such as hot engine or exhaust components, can increase the risk of a fire.
Fix: Dealers will replace the fuel rail and fuel injectors, free of charge. Owner notification letters were mailed april 22, 2022. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for the recall is 2022030003.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2019 amg g63, c300, e300, g550, amg gt63, amg gt53, 2019-2020 a220, gla250, glc300, 2016 c300, 2020 amg a35, amg c43, amg c63, cla250, e350, e450, glb250, gle450, gls450, gls580, s560, and sl550 vehicles equipped with a gasoline engine. During the manufacturing process, particles may have been trapped between the fuel rail and injectors, which can cause a fuel leak.
Air bags: side impact
Risk: Air bags and seatbelts that don't function as intended can increase the risk of injury during a crash.
Fix: Dealers will inspect and replace as necessary, the side impact crash sensors, free of charge. Owner notification letters were mailed on september 3, 2021. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2021070032/33.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2021 cls450, amg e53, amg cls53, e350, e450, amg gt43, amg gt53, 2020 s450, s560, g550, amg glc63, 2020-2021 glc300, and amg g63 vehicles. The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.
Backup camera: camera
Risk: A backup camera that displays a blank image reduces the driver's rear view, increasing the risk of a crash or injury.
Fix: The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning june 28, 2021. Owners may contact mbusa customer service at 1-800-367-6373. Mbusa's number for this recall is 2021050012.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2019-2021 cla-class, gle/gls-class, a-class, e-class, e-class coupe and convertible, gla/glb-class, glc-class, cls-class, and amg gt-class 4-door coupe vehicles. Please refer to mbusa's recall report for specific vehicle model details. The mbux multimedia system software may cause the display to remain black, or reboot after startup. This could result in the rearview camera image not displaying properly. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard (fmvss) number 111, "rear visibility."
Body and structure: roof and pillars
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.
Full 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.
Infotainment and connectivity: auto crash notification
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.
Full defect summary
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.
Infotainment and connectivity: auto crash notification
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.
Full defect summary
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.
Steering: electric power assist system
Risk: A loss of power steering assist can increase the risk of a crash. Additionally, if the wiring harness short-circuits, there is an increased risk of a fire.
Fix: Mbusa will notify owners, and dealers will inspect the wiring harness, and replace it if necessary, free of charge. The recall began december 11, 2020. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2020110012.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 glc300, glc350e, glc43 amg, and glc63 amg vehicles. The power steering control unit wiring harness may have been damaged during the production process, possibly resulting in a loss of power steering assist or an electrical short-circuit.
Engine: turbo/supercharger
Risk: An oil leak in the presence of an ignition source such as hot engine or exhaust components can increase the risk of a fire.
Fix: Mbusa will notify owners, and dealers will inspect the turbocharger oil lines and tighten them as necessary, free of charge. The recall began august 17, 2020. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2020070017.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 c300, e350, and glc300 vehicles equipped with turbocharged 4-cylinder gasoline engines. The screws that retain the turbocharger oil feed and return lines may not have been properly tightened, possibly resulting in an oil leak.
Seats: mid/rear assembly
Risk: In the event of a crash, if the left-rear seatback latch fails, it can increase the risk of injury.
Fix: Mbusa will notify owners, and dealers will replace the left-rear seatback latch, free of charge. The recall began august 17, 2020. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2020070004.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 e450, amg e63s, glc300, amg glc43, amg glc63, amg gt53, and amg gt63 vehicles equipped with rear seatbacks that can be electrically unlatched. The left-rear seatback latch may not be strong enough to withstand certain loads. If cargo were to strike the left-rear seatback, the latch may fail.
Infotainment and connectivity: communication
Risk: An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Fix: Mbusa will notify owners, and dealers will replace the communication module, free of charge. The recall began april 14, 2020. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2020030016.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2020 c300 cabrio, c300 cabrio 4matic, c300 coupe, c43 amg cabrio 4matic, c43 amg coupe 4matic, c63s amg cabrio, cls53 amg 4matic, e350, e350 4matic, e450 cabrio, e450 cabrio 4matic, e450 coupe, e450 coupe 4matic, e450 4matic, e53 amg cabrio 4matic, glc300 coupe 4matic, glc300, glc300 4matic, glc63 amg coupe 4matic, amg gt63 4-door 4matic, and amg gt63s 4-door 4matic vehicles. An electrical circuit inside the emergency call system (ecall) communication module may be damaged, potentially relaying an inaccurate vehicle location.
Air bags: inflator module
Risk: In the event of a crash necessitating deployment of the driver's front airbag, the airbag may not deploy properly, increasing the risk of injury.
Fix: Mbusa will notify owners, and dealers will inspect the driver airbag module and replace it, as necessary, free of charge. The recall began october 29, 2019. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2019100001.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2019-2020 a 220 and a 220 4matic, 2020 cla 250, cla 250 4 matic, glc 300 coupe 4matic, glc 300 and glc 300 4matic vehicles. The driver's side front airbag modules may not have been properly bolted down.
Driver assistance: radar
Risk: An impaired active brake assist may not automatically apply partial or full braking as expected, increasing the risk of a crash.
Fix: Mbusa will notify owners, and dealers will update the radar sensor control unit software, free of charge. The recall began september 13, 2019. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2019080008.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2019 c300 cabrio, c300a cabrio 4matic, c300 coupe, c300 coupe 4matic, c300, c300 4matic, c43 amg cabrio 4matic, c43 amg coupe 4matic, c43 amg 4matic, c63 amg cabrio, c63s amg cabrio, c63 amg coupe, c63s amg coupe, c63 amg, c63s amg, cls450, cls450 4matic, cls53 amg 4matic, e300, e300 4matic, e450 cabrio, e450 cabrio 4matic, e450 coupe, e450 coupe 4matic, e450 wagon 4matic, e450 4matic, e53 amg cabrio 4matic, e53 amg coupe 4matic, e53 amg 4matic, e63s amg 4matic, e63s amg wagon 4matic, s450, s450 4matic, s560 cabrio, s560 coupe 4matic, s560, s560 4matic, s560 4matic maybach, s63 amg cabrio 4matic, s63 amg coupe 4matic, s63 amg 4matic, s65 amg cabrio, s65 amg, and amg gt53 coupe 4matic vehicles, and 2020 glc300 coupe 4matic, gle350 4matic, and gle450 4matic vehicles equipped with the driver assistance package. A software error in the rad
Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.
NHTSA defect investigations
Front roof panel detachment
Summary
On january 8, 2021, after ongoing review with mercedes benz, the national highway traffic safety administration (NHTSA) office of defects investigation (odi) opened pe21-001 to assess allegations of front roof panel detachments while driving at highway speeds in certain 2015 mercedes-benz (mercedes) c-class vehicles.the subject front roof panel is a stationary panel composed of polycarbonate and is attached to the vehicle via adhesive at the time of manufacture. The panel is found on subject vehicles equipped with panoramic sunroofs. Over time, the subject panels may exhibit cosmetic degradation leading to replacement of the panel, a procedure which entails: removal of the old panel and adhe
Questions about the 2020 Mercedes-Benz Glc 300
- What are the most common problems with the 2020 Mercedes-Benz Glc 300?
- By NHTSA owner complaints: engine (21 complaints); other or unspecified (15 complaints); backup camera (7 complaints).
- How many recalls does the 2020 Mercedes-Benz Glc 300 have?
- 16 recalls listed by NHTSA, the latest from February 2, 2024 (lights). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
- Is the 2020 a bad year for the Mercedes-Benz Glc 300?
- It is 4th of 11 Glc 300 model years by number of complaints, with 69 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.