VehicleVerdict

2017 Mercedes-Benz Glc300 problems

Verdict · NHTSA data

One of the years to avoid

The 2017 Mercedes-Benz Glc300 carries two red flags at once: 135 consumer complaints filed with NHTSA and an open NHTSA defect investigation (subject: Desiccated Air Bag Inflator Rupture). It is one of the Glc300 years to avoid.

Engine leads the complaint categories with 38 reports (28% of the total).

135

NHTSA complaints

12

Recalls

2

Investigations · 1 open

6

Crash-involved

3

Fires reported

3

Injuries

0

Deaths

—

NCAP overall

How does 2017 compare to other Glc300 years?

Glc300 NHTSA complaints by model year, 2017 highlighted170 complaints2016: 170 complaints2017: 135 complaints2018: 0 complaints2019: 0 complaints2020: 0 complaints
Glc300 NHTSA complaints by model year, 2017 highlighted. Red bars are years to avoid.

See all Glc300 years to avoid →

What are the most common 2017 Mercedes-Benz Glc300 problems?

ComponentComplaintsShare
Engine3828%
Electrical System1612%
Fuel System1511%
Other129%
Airbags107%
Visibility & Wipers86%
Seat Belts86%
Transmission75%
Brakes43%
Driver Assistance43%
Steering43%
Tires & Wheels32%
Seats21%
Lighting11%
Speed Control11%
Body & Structure11%
Suspension11%

Does the 2017 Mercedes-Benz Glc300 have recalls?

12 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

23V854000Body & StructureDecember 15, 2023 · 2,976 units

Defect

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.

Consequence

A detached roof panel can become a road hazard, increasing the risk of a crash.

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.

21V197000Body & StructureMarch 19, 2021 · 15,096 units

Defect

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.

Consequence

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.

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.

21V072000OtherFebruary 12, 2021 · 67 units

Defect

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.

Consequence

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.

Remedy

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.

21V058000OtherFebruary 5, 2021 · 1,292,258 units

Defect

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.

Consequence

Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.

Remedy

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.

18V683000Seat BeltsOctober 1, 2018 · 4,702 units

Defect

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.

Consequence

If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.

Remedy

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.

18V177000Seat BeltsMarch 15, 2018 · 121,858 units

Defect

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.

Consequence

If the rear seat passengers cannot fasten their seat belts, they have an increased risk of injury in the event of a crash.

Remedy

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.

17V819000LightingDecember 18, 2017 · 8,134 units

Defect

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."

Consequence

An insufficiently illuminated roadway may increase the risk of a crash.

Remedy

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.

17V715000Visibility & WipersNovember 14, 2017 · 9,379 units

Defect

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.

Consequence

If the sun roof panels detach from the vehicle, it can increase the risk of a crash or injury for following traffic.

Remedy

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.

17V627000AirbagsOctober 6, 2017 · 495,290 units

Defect

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.

Consequence

If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.

Remedy

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.

17V574000SteeringSeptember 19, 2017 · 4 units

Defect

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.

Consequence

The improperly welded pins may lose contact, deactivating the power steering assist and increasing the risk of a crash.

Remedy

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.

17V251000Seat BeltsApril 11, 2017 · 12,743 units

Defect

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."

Consequence

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.

Remedy

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.

17V114000Electrical SystemFebruary 23, 2017 · 307,629 units

Defect

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.

Consequence

If the starting current limiter overheats, the surrounding components can melt, increasing the risk of a fire.

Remedy

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.

Open NHTSA investigations

EA21002

Desiccated Air Bag Inflator Rupture

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 substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ GLC300. WHILE PARKED IN THE DRIVEWAY, THE VEHICLE CAUGHT FIRE. THE FAILURE WAS DUE TO A MANUFACTURER DEFECT. THERE WERE NO INJURIES. THE FIRE DEPARTMENT WAS CONTACTED. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT TOWED. AN UNKNOWN DEALER LOCATION WAS…”

Complaint filed with NHTSA · Engine · March 3, 2018 · fire

“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…”

Complaint filed with NHTSA · Electrical System · April 25, 2017 · fire

“The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that she detected an abnormally strong fuel odor after parking the vehicle, and while starting the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the…”

Complaint filed with NHTSA · Fuel System · March 1, 2024

“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…”

Complaint filed with NHTSA · Other · October 14, 2017

“TL* 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…”

Complaint filed with NHTSA · Airbags · July 6, 2020 · crash

2017 Mercedes-Benz Glc300 — common questions

Is the 2017 Mercedes-Benz Glc300 reliable?

NHTSA data argues against it: 135 complaints put the 2017 model at #2 of 5 Glc300 years, and a defect investigation remains open. It is one of the Glc300 years to avoid.

What are the most common 2017 Glc300 problems?

According to NHTSA complaint data, the leading problem areas are engine (38 complaints), electrical system (16 complaints), fuel system (15 complaints).

Does the 2017 Mercedes-Benz Glc300 have recalls?

Yes — NHTSA lists 12 recall campaigns affecting the 2017 Mercedes-Benz Glc300. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 2017 Mercedes-Benz Glc300 under NHTSA investigation?

Yes — an investigation remains open (Desiccated Air Bag Inflator Rupture). An open ODI action means NHTSA is actively assessing a possible defect.

Which Mercedes-Benz Glc300 years should you avoid?

Based on complaint rates and open investigations, the Glc300 years to avoid are 2016, 2017. The cleanest record among Glc300 years belongs to 2020.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.