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2017 Mercedes-Benz Glc 300 Problems and Recalls
Owners filed 99 complaints with NHTSA about the 2017 Mercedes-Benz Glc 300, most often about the engine (37% of complaints, typically around 60,000 miles). It is the 2nd most complained-about Glc 300 model year since 2000 and has 12 recalls.
Most common 2017 Mercedes-Benz Glc 300 problems
Engine
37 complaints · 37%Half of these problems showed up before 60,000 miles. Parts named most often: exhaust system.
1. Crankcase ventilation valve performance failed check engine light is on while driving 2. Smells gas from under the hood. Heard it's common problems
The contact owns a 2017 Mercedes-Benz glc300. The contact stated that while at a stop light, the vehicle independently shifted to neutral(n) for approximately 5 minutes. The vehicle failed to release from neutral when the driver shifted the gear shifter. The contact stated that the transmission then released from…
Electrical
15 complaints · 15%The engine suddenly went up in flames while driving,my wife switched off the ignition and go out of the car. There was a big hole and mercedes authorized dealer siad this is a catastrophic event. This car is new purchased on october 31st 2016 mb says they will replace the engine as it is in warranty, but sentimentally…
Vehicle key-less entry locked out the driver and passenger with keys inside the vehicle while parked. Talked to other mercedes glc300 owners and they are experiencing same issue. This happened late at night with my wife and 7 year old daughter in a high crime area while I was out of town. Mercedes roadside assistance…
Fuel system
15 complaints · 15%Half of these problems showed up before 55,000 miles. Parts named most often: storage.
The contact owns a 2017 Mercedes-Benz glc300. The contact stated that while operating the vehicle, the fuel gauge provided incorrect information and indicated that there was no fuel in the fuel tank. The contact stated that the failure was intermittent and sometimes occurred immediately after refueling. The vehicle…
1. Crankcase ventilation valve performance failed check engine light is on while driving 2. Smells gas from under the hood. Heard it's common problems
Other or unspecified
12 complaints · 12%While driving on the I-5 into downtown san diego we heard a loud bam, a moment later heard cracking then shattered glass from my sunroof fell into the car. There was no one directly around US.
Vehicle key-less entry locked out the driver and passenger with keys inside the vehicle while parked. Talked to other mercedes glc300 owners and they are experiencing same issue. This happened late at night with my wife and 7 year old daughter in a high crime area while I was out of town. Mercedes roadside assistance…
Air bags
11 complaints · 11%Half of these problems showed up before 60,000 miles. Parts named most often: frontal.
The contact owns a 2017 Mercedes-Benz glc300. The contact stated while attempting to make a u-turn, she heard an abnormal sound. The contact stated no warning light was illuminated. The contact stated the following day, she noticed the steering wheel features including the horn and air bag were inoperable. The vehicle…
The contact owns a 2017 mercedes benz glc300. The contact stated that while his wife was driving approximately 40 MPH, the vehicle crashed into a 2nd vehicle. During the crash the front end was severely damaged but the air bags did not deploy. Also, the collision avoidance system malfunctioned and did not stop the…
Visibility and wipers
8 complaints · 8%Half of these problems showed up before 68,000 miles. Parts named most often: sun/moon roof assembly, windshield, rearview mirrors/devices.
The contact owns a 2017 Mercedes-Benz glc300. The contact stated that while driving at an undisclosed speed, the front roof panel between the windshield and sunroof detached from the vehicle. The vehicle was not taken to the dealer and was not repaired. The contact became aware of NHTSA campaign number: 17v715000…
The contact owns a 2017 Mercedes-Benz glc300. The contact stated that while driving approximately 30 MPH, the first panel of the panoramic sunroof went off track and failed to close as intended. The contact stated that while inspecting the vehicle, the panoramic sunroof glass was pushed down firmly, and the sunroof…
Seat belts
8 complaints · 8%Parts named most often: rear/other.
The contact owns a 2017 Mercedes-Benz glc300. The contact stated that while driving on several occasions at various speeds, the front passengerâs side seat belt retractor failed to extend or retract as intended and became stuck. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the…
The contact owns a 2017 Mercedes-Benz glc300. The contact stated that while parked and attempting to release the seat belt, the seat belt remained latched. The contact stated that after the third attempt, the seat belt operated as needed. The failure had occurred in the front driverâs and passengerâs side seat…
Transmission
7 complaints · 7%The contact owns a 2017 Mercedes-Benz glc300. The contact stated that while at a stop light, the vehicle independently shifted to neutral(n) for approximately 5 minutes. The vehicle failed to release from neutral when the driver shifted the gear shifter. The contact stated that the transmission then released from…
The contact owns a 2017 Mercedes-Benz glc300. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed, however, the vehicle failed to accelerate as intended. In addition, the check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with a…
Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.
2017 Mercedes-Benz Glc 300 recalls
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.
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.
Seat belts: buckle assembly
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.
Full defect summary
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.
Seat belts: buckle assembly
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.
Full defect summary
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.
Lights: headlights
Risk: An insufficiently illuminated roadway may increase the risk of a crash.
Fix: Mbusa will notify owners, and dealers will inspect the headlamp adjustment, adjusting it as necessary, free of charge. The recall began on january 12, 2018. Owners may contact mbusa customer service at 1-877-496-3691.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2016-2017 glc300, glc300 4matic and glc43 4matic vehicles. These vehicles may have misadjusted headlights, possibly resulting in the low beam headlights insufficiently illuminating the roadway. 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."
Visibility and wipers: sun/moon roof assembly
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.
Full defect summary
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.
Air bags: frontal
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.
Full defect summary
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 wago
Steering: electric power assist system
Risk: The improperly welded pins may lose contact, deactivating the power steering assist and increasing the risk of a crash.
Fix: Mbusa will notify owners, and dealers will replace the electric power steering rack, free of charge. The recall is expected to begin november 10, 2017. Owners may contact mbusa customer service at 1-877-496-3691.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling one 2017 c43 amg, one e300 4matic sedan, one glc300, and one e43 amg 4matic sedan. These vehicles have electrical power steering control units with improperly welded contact pins.
Seat belts: pretensioner
Risk: If the front seat seatbelt pretensioners do not function properly, the seat occupants may not be adequately restrained in the event of a crash, increasing the risk of injury.
Fix: Mbusa will notify owners, and dealers will replace the front seat belts, free of charge. The recall began october 13, 2017. Owners may contact mbusa customer service at 1-800-367-6372.
Full defect summary
Mercedes-benz USA, llc (mbusa) is recalling certain 2017 c300, c300 4matic, c300 coupe, c300 coupe 4matic, c43 amg, c43 amg coupe, c43 amg cabrio, c63 amg, c63 amg coupe, c63s amg, c63s amg coupe, c63s cabrio, glc300, glc300 4matic, glc43 amg, s550, s550 4matic, s550e, s600, s63 amg 4matic, s65, mercedes-maybach s550 4matic, and mercedes-maybach s600 vehicles. The affected vehicles have front seat seatbelt pretensioners that may not function properly in the event of a crash. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard (fmvss) number 208, "occupant crash protection," and 209, "seat belt assemblies."
Electrical: starter assembly
Risk: If the starting current limiter overheats, the surrounding components can melt, increasing the risk of a fire.
Fix: Mbusa will notify owners, and dealers will install an additional fuse in the electrical line to the starter, free of charge. The recall began august 31, 2017. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2017080002.
Full defect summary
Mercedes-benz USA, llc. (mbusa) is recalling certain 2015-2017 c300 4matic, c300, cla250, cla250 4matic and cla45 amg vehicles, 2017 c300 4matic cabrio, c300 4matic coupe, c300 cabrio, c300 coupe, e300, e300 4matic, e400 4matic wagon, e43 amg 4matic, gla250, gla250 4matic and glc300 4matic coupe vehicles and 2016 c350e and glc300 vehicles and 2016-2017 c450 4matic amg sport and glc300 4matic vehicles. In the event that the engine or transmission cannot turn over, the starting current limiter may overheat from the repeated attempts of the starter motor attempting to start the vehicle.
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
Desiccated air bag inflator rupture
Summary
From 2000 through 2017, takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("psan") propellant -- propellant 2004 and propellant 2004l. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 blomquist report at www.NHTSA.gov/sites/NHTSA.gov/files/documents/expert_report-hrblomquist.pdf.consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substa
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 2017 Mercedes-Benz Glc 300
- What are the most common problems with the 2017 Mercedes-Benz Glc 300?
- By NHTSA owner complaints: engine (37 complaints, typically around 60,000 miles); electrical (15 complaints); fuel system (15 complaints, typically around 55,000 miles).
- How many recalls does the 2017 Mercedes-Benz Glc 300 have?
- 12 recalls listed by NHTSA, the latest from December 15, 2023 (body and structure). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
- Is the 2017 a bad year for the Mercedes-Benz Glc 300?
- It is the 2nd most complained-about Glc 300 model year since 2000, with 99 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.