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2017 Mercedes-Benz GLC 300: Problems, Recalls and MPG

What this means

NHTSA lists 12 recall campaigns for the 2017 Mercedes-Benz GLC 300, most recently filed December 2023. Owners have filed 98 complaints with NHTSA, most often about the engine.

Data summary generated from official records. Methodology Data: NHTSA, DOT, EPA · Refreshed Oct 6, 2026
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Recalls (12)

NHTSA lists 12 recall campaigns for the 2017 Mercedes-Benz GLC 300. Check whether yours was repaired with NHTSA's free VIN lookup ↗

Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.

Check on NHTSA ↗
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 23V854000 Filed Dec 15, 2023

Roof Panel May Detach From Vehicle

Structure · body · roof and pillars
Official NHTSA text
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.
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.
40.6% repairedof 2,976 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 23V854000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 21V197000 Filed Mar 19, 2021

Roof Panel May Detach From Vehicle

Structure · body · roof and pillars
Official NHTSA text
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.
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.
63.5% repairedof 15,096 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 21V197000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 21V072000 Filed Feb 12, 2021

Emergency Call (eCall) Function May be Disabled

Communication
Official NHTSA text
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.
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.
86.6% repairedof 67 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 21V072000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 21V058000 Filed Feb 5, 2021

Inaccurate Vehicle Location for Emergency Services

Communication · auto crash notification
Official NHTSA text
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.
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.
95.3% repairedof 1,292,258 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 21V058000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 18V683000 Filed Oct 1, 2018

Rear Seat Belt May be Unable to be Latched

Seat belts · rear/other · buckle assembly
Official NHTSA text
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.
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.
82.8% repairedof 4,702 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 18V683000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 18V177000 Filed Mar 15, 2018

Rear Seat Belt May be Unable to be Latched

Seat belts · rear/other · buckle assembly
Official NHTSA text
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.
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.
86.2% repairedof 121,858 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 18V177000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 17V819000 Filed Dec 18, 2017

Insufficient Low Beam Illumination/FMVSS 108

Exterior lighting · headlights
Official NHTSA text
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."
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.
96.4% repairedof 8,134 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 17V819000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 17V715000 Filed Nov 14, 2017

Sun Roof Panels may Detach

Visibility · sun/moon roof assembly
Official NHTSA text
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.
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.
95.6% repairedof 9,379 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 17V715000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 17V627000 Filed Oct 6, 2017

Inadvertent Driver Air Bag Deployment

Air bags · frontal
Official NHTSA text
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 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.
81.3% repairedof 495,290 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 17V627000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 17V574000 Filed Sep 19, 2017

Loss of Power Steering Assist

Steering · electric power assist system
Official NHTSA text
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.
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.
75% repairedof 4 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 17V574000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 17V251000 Filed Apr 11, 2017

Seat Belt Pretensioners may not Function Properly

Seat belts · pretensioner
Official NHTSA text
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."
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.
100% repairedof 12,743 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 17V251000
Listed for 2017 Mercedes-Benz GLC 300. Not checked against your VIN.
Recall 17V114000 Filed Feb 23, 2017

Starting Current Limiter may Overheat

Electrical system · starter assembly
Official NHTSA text
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.
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.
98.9% repairedof 307,629 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 17V114000

PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.

Owner complaints (98)

98 complaints filed with NHTSA (owner reports, not verified findings). The engine is mentioned most often.

3involved a crash
2involved a fire
2injuries reported
0deaths reported

As reported by owners in their complaints. These are reports, not NHTSA findings.

Most-reported components

Complaints filed with NHTSA for the 2017 Mercedes-Benz GLC 300, by component (top 10). One complaint can list several components, so these add up to more than 98.Source: NHTSA ODI owner complaints · Retrieved Oct 6, 2026 · Report a data error

How 2017 compares with other GLC 300 years

Best and worst GLC 300 years →
2016201720182019202020212022202320242025
This year (2017)Other yearsStill collecting reports

Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.

Fuel economy: up to 24 mpg combined

24
mpg combined
22
city
28
highway
EPA annual fuel cost
$3,400
CO₂ tailpipe
364 g/mi
EPA class
Small Sport Utility Vehicle

What it costs you to run

$2,721per year
$227per month
625gallons a year

Miles ÷ 24 mpg × $4.354 (EIA US average regular, week of Oct 5, 2026, all taxes included). Source: EPA · EIA.

EPA label estimates from lab tests; your mileage will vary.

Specs by configuration

2017 Mercedes-Benz GLC 300 configurations with EPA data
Engine · transmissionDriveCity / Hwy / CombEPA $/yrCO₂ g/mi
2 L 4-cyl · 9-speed automaticRear-Wheel Drive22 / 28 / 24$3,400364

Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.

Used blue SUV on a sunny dealer lot with its hood open and a clipboard on the fender

Looking at a 2017 GLC 300 for sale?

Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.

All GLC 300 years

Where to next

2017 Mercedes-Benz GLC 300 FAQ

How many recalls does the 2017 Mercedes-Benz GLC 300 have?

NHTSA lists 12 recall campaigns: 23V854000 (structure), 21V197000 (structure), 21V072000 (communication), 21V058000 (electrical), 18V683000 (seat belt), 18V177000 (seat belt), 17V819000 (lighting), 17V715000 (visibility), 17V627000 (air bag), 17V574000 (steering), 17V251000 (seat belt), 17V114000 (engine). Use NHTSA's VIN lookup to see whether a specific car was repaired.

What are the most common 2017 Mercedes-Benz GLC 300 problems?

Owners filed 98 complaints with NHTSA. Engine (37), Electrical system (15), Fuel/propulsion system (13) are mentioned most. These are owner reports, not verified findings.

What mpg does the 2017 Mercedes-Benz GLC 300 get?

EPA rates the 2 L 4-cyl · 9-speed automatic version at 22 city, 28 highway and 24 combined mpg.

How does the 2017 GLC 300 compare with other years?

Among the 2016–2021 Mercedes-Benz GLC 300 model years at least five years old, the 2019 drew the fewest complaints (47) and the 2016 the most (133). The 2017 drew 98. Counts are owner reports, not failure rates.

How this page was madeSources, processing, limits, review and changes

Processing

  • Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
  • Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.

Limitations

  • Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
  • Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
  • Recent model years are still collecting reports.

Review

Data compiled automatically from the official files listed here.

Changelog

  • 2026-10-06 Data refreshed from the official files.
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