2017 Mercedes-Benz GLC 300 airbags problems

12 complaints (12% of all complaints for this car). Typical mileage when it fails: 60,000. 1 crash reported.

owner complaints: 12
of this car's complaints: 12%
typical mileage: 60,000
crashes: 1
recalls: 1

Which part fails

Frontal: driver clockspring/spiral cassette
2

At what mileage

Complaints by mileage at the time of the problem.

0k-25k

25k-50k

50k-75k

75k-100k

100k-125k

125k-150k

150k-175k

175k-200k

200k+

Mercedes-Benz GLC 300 airbags problems in other years

Related recalls

Air bags: frontalReported October 6, 2017 · 495,290 vehicles affected

What is wrong: 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.
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.

Recall number 17V627000 · Recall details

Related investigations

Desiccated Air Bag Inflator RuptureOpened September 17, 2021, still open

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 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 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.

EA21002

What 2017 Mercedes-Benz GLC 300 owners say

Most recent owner complaints, unedited.

Filed Nov 5, 2026 · Airbags, Electrical · IL

broken steering column clock spring.

Filed Oct 7, 2026 · Airbags · 189,000 miles · GA

The contact's wife owns a 2017 Mercedes-Benz GLC300. The contact stated that while the vehicle was parked in the driveway, the air bags inadvertently deployed without impact to the vehicle. The vehicle was towed to the dealer and remained with the dealer for over a month. The contact was called by the dealer and informed to retrieve the vehicle even though the cause of the failure was not yet determined. The contact notified the manufacturer and was informed that the issue was under investigation. The vehicle remained unrepaired with the dealer. The failure mileage was approximately 189,800.

Filed Feb 3, 2026 · Airbags, Driver assistance · 130,000 miles · CA

The contact owns a 2017 Mercedes-Benz GLC300. The contact stated while driving at an undisclosed speed, the messages "Driver’s Air Bag Malfunction - Service Required" and "Collision Prevention Assist Unavailable" were displayed. The vehicle was taken to an independent mechanic who diagnosed and determined that the air bag had malfunctioned. The vehicle was not repaired. The contact called the dealer, but the vehicle was not inspected or repaired. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline for assistance. The failure mileage was approximately 130,000.

Filed Jun 11, 2025 · Airbags, Seat belts · VA

Vehicle has previous recalls done and still has the same issues with recall. Srs code no air bag will deploy. Dealer ship refused to service vehicle due to miscommunication and I'm driving a defective vehicle without an airbag which could lead to a bad accident waiting to happened. I will like to file a complaint against Mercedes of Richmond for refusing to service my vehicle without a defective air bag and the passenger seat bear latch doesn't retract properly. So I'm currently dealing with 2 huge safety hazard and was denied service due to a miscommunication with Steven Powers (service technician) at Mercedes of Richmond! I will like an investigation done.

Filed Jun 4, 2025 · Airbags, Seat belts · VA

No incident my vehicle has a front left malfunction service required light and issues with the passenger seatbelt not proper latching. Upon checking I notice my car had previous recalls done. It seems as if the same issues has come about. the federal safety agency: 18v177- seat belt not retracting properly. the federal safety agency: 17V627 is related to the steering column switch replacement of clock spring. So if me or a family member was to get into an accident no airbag will deploy! Huge safety hazard!

Filed Jun 2, 2025 · Airbags, Seat belts · 120,000 miles · VA

The contact owns a 2017 Mercedes-Benz GLC300. The contact stated that while driving on several occasions at various speeds, the front passenger’s 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 failure. Additionally, the contact stated that on several occasions while started and running, the message “Service Soon” was displayed. The vehicle was taken to a dealer where it was diagnosed and determined that the clock spring needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 120,000.

Filed Feb 10, 2021 · Airbags · 60,000 miles · MA

Tl* 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 was taken to the local dealer hoffman lexus (750 connecticut blvd, east hartford, ct 06108, (860) 525-3987) and the dealer was made aware of the failure. The vehicle was taken to the local dealer new country mercedes-benz (1 weston st, hartford, ct 06120, (860) 278-2000) where it was diagnosed with needing the clock spring to be replaced. The vehicle had not been repaired as of yet. The manufacturer had not been informed of the failure. The failure mileage was approximately 60,000.

Filed Jul 8, 2020 · Airbags, Driver assistance · 25,000 miles · AL · crash · 1 injury

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 and did not stop the vehicle to avoid the collision. The driver sustained bruises to the torso area which required medical treatment. An occupant from the 2nd vehicle was transported to the hospital by ambulance. No further information was available. A police report was taken at the scene and the vehicle was towed away. The local dealer mercedes benz of huntsville (6220 university dr. Huntsville, al) and the manufacturer were notified of the incident. The cause of the failures were not determined. The failure mileage was 25,000.

Filed Nov 15, 2018 · Airbags, Seat belts · 12 miles · TX

When the vehicle is in motion, or still, the driver's side cover for the seatbelt/airbag will not stay attached. This is located on the driver's seat and is visible when entering and exiting the car. I am not really concerned about the cosmetic issue as much as the safety issue. With the side impact airbags, this is a safety hazard. If the bag deploys who knows what will happen to the floating part? Will the airbag, or seatbelt even deploy, or work as it should? This is also a safety issue because you can be injured by the hard plastic that is hanging there. The piece can also get caught under our feet while driving as it does not stay in place. I reported this the 3rd day and had it repaired 3 other times. I have had my car and it has been in place only 5 days in 2 years, 2 months and 30 days. The new loaner they gave me had the same issue and the porters report they never stay on. The car was in for service for this issue 4 times in the first 20 months I owned it. It could have been weekly if I would have not just lived with it in between services that were needed and taken it in again for service and the issue.

Filed Jan 20, 2018 · Airbags, Brakes · 7,000 miles · AR

Rear braking system. When backing up or applying pressure to the brakes, the vehicle is screaming a loud noise. Taken by dealership at 7000 miles 01/04/18 dealership states they can't fix it until they receive parts ,with the takata recall and a faulty braking system, this is a highway safety issue.

Questions about the 2017 Mercedes-Benz GLC 300 airbags

Does the 2017 Mercedes-Benz GLC 300 have airbags problems?

Owners have filed 12 complaints about the airbags of the 2017 Mercedes-Benz GLC 300, 12% of all its complaints.

At what mileage do 2017 Mercedes-Benz GLC 300 airbags problems start?

The typical (median) mileage in owner complaints is 60,000 miles.

Was there a recall on the 2017 Mercedes-Benz GLC 300 airbags?

Yes, 1 recall: 17V627000. Check your VIN to see if your car still needs the free repair.

What year does the Mercedes-Benz GLC 300 have bad airbags?

The Mercedes-Benz GLC 300 model years with the most airbags complaints are 2016 (12 complaints) and 2017 (12 complaints).