vehicle signal
U.S. public vehicle records

2018 Mercedes-Benz GLC 300: complaints, problems and recalls

Explore the records behind recurring owner reports.

Key facts

87 owner complaints analyzed

12 distinct recall campaigns

10,500 mi median reported failure mileage

Scope: 2018 model year. Data snapshot: . 31 complaints include usable failure mileage.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 28 of 87 complaints (32.2%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Steering behavior1011.5%
Transmission and shifting910.3%
Braking behavior89.2%
Engine operation22.3%
Electrical and battery issues11.1%
Fuel system concerns11.1%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Engine
28
Unknown Or Other
20
Electrical System
13
Seat Belts
8
Fuel/Propulsion System
7
Power Train
7
Air Bags
6
Structure:Body
6
Component breakdown data
CategoryCount
Engine28
Unknown Or Other20
Electrical System13
Seat Belts8
Fuel/Propulsion System7
Power Train7
Air Bags6
Structure:Body6

Engine: 28; Unknown Or Other: 20; Electrical System: 13; Seat Belts: 8; Fuel/Propulsion System: 7; Power Train: 7; Air Bags: 6; Structure:Body: 6

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
22
25,000 to 49,999
2
50,000 to 74,999
6
75,000 to 99,999
1
100,000 to 149,999
0
150,000 and above
0
Reported problems by failure mileage data
CategoryCount
Under 25,00022
25,000 to 49,9992
50,000 to 74,9996
75,000 to 99,9991
100,000 to 149,9990
150,000 and above0

Under 25,000: 22; 25,000 to 49,999: 2; 50,000 to 74,999: 6; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (22). 56 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2018
12
2019
6
2020
5
2021
1
2022
8
2023
26
2024
16
2025
9
2026
4
Complaints over time data
CategoryCount
201812
20196
20205
20211
20228
202326
202416
20259
20264

2018: 12; 2019: 6; 2020: 5; 2021: 1; 2022: 8; 2023: 26; 2024: 16; 2025: 9; 2026: 4

Pattern summary

Engine leads the component reports. Steering behavior appears in 10 complaint narratives. Transmission and shifting appears in 9 complaint narratives. Braking behavior appears in 8 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Examples from the source records

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11066706 · 2018-02-02 (February 2, 2018)

MY HEEL GOT STUCK WHEN PRESSING THE GAS PEDAL CREATING A SAFETY HAZARD. MY SHOE WAS STUCK AND I HAD TO DRIVE BAREFOOT. I TOOK IT TO THE MERCEDES CALABASAS DEALERSHIP AND THEY SAID THERE WAS NOTHING THEY COULD DO AND I SHOULD NOT WEAR HEELS WHEN DRIVING. I HAVE DRIVEN FOR OVER 30 YEARS WITH NO ISSUES.

Owner-reported narrative. 20 miles reported. Look up ODI 11066706 at NHTSA ↗

Owner report 11067322 · 2018-02-06 (February 6, 2018)

I AM HAVING AN ISSUE OF SQUEAKY BRAKE. IT USUALLY HAPPENS IN SNOWING DAY OR DAY AFTER FROM FRONT WHEEL. BUT, IT WOULD HAVE HAPPENED AT SUNNY DAY TOO. IT SOUNDS VERY LOUD, SO ANNOYING. I TOOK MY CAR MERCEDES DEALERSHIP WHERE I LEASED THE CAR. FOR THE FIRST TIME, THEY FIXED. ACCORDING TO THE INVOICE, THE TECHNICIAN FOUND AND CONFIRMED THE ISSUE OF SQUEAKY COMES FROM REAR WHEEL. BUT, IT HAPPENS NOW AT FRONT. IT IS PRETTY MUCH DOUBTFUL ABOUT WHETHER THEY DID GOOD JOB OR NOT. I ATTACH A LINK OF YOUTUBE WHICH I RECORDED THE ISSUE MY SELF. PL…

Owner-reported narrative. 1,500 miles reported. Look up ODI 11067322 at NHTSA ↗

Owner report 11071995 · 2018-02-09 (February 9, 2018)

MY WORK HEELS GOT STUCK BETWEEN THE CARPET AND GAS PEDAL CREATING A DRIVING HAZARD. THERE IS A GAP THAT IS DANGEROUS AND AFTER NOTIFYING THE DEALER AND MB, THEY SAID THAT I SHOULD NOT WEAR WORK HEELS. I AM A PROFESSIONAL WOMAN AND WEAR BUSINESS SHOES. THE HEEL GOT STUCK CAUSING ME TO DRIVE WITH NO SHOES ON THE FREEWAY.

Owner-reported narrative. 200 miles reported. Look up ODI 11071995 at NHTSA ↗

Owner report 11075967 · 2018-03-02 (March 2, 2018)

WHILE SLOWLY ACCELERATING THE TRANSMISSION MADE A LOUD BANG AND THE CAR SLOWED TO A CRAWL IN THE MIDDLE OF AN INTERSECTION NEARLY CAUSING A MAJOR ACCIDENT, STEERING WAS NEARLY GONE AS WELL WITH NO RESPONSE FROM ACCELERATOR. THE VEHICLE DISPLAY ALSO SAID IT LOST COMMUNICATION WITH THE KEY WHICH WAS IN THE VEHICLE.

Owner-reported narrative. 500 miles reported. Look up ODI 11075967 at NHTSA ↗

Owner report 11094094 · 2018-05-16 (May 16, 2018)

TL* THE CONTACT OWNED A 2018 MERCEDES-BENZ GLC300. WHILE DRIVING 55 MPH, THE REAR DRIVER'S SIDE TIRE WAS PUNCTURED. THE CONTACT STATED THAT THE VEHICLE WAS EQUIPPED WITH 18 INCH RUN FLAT TIRES. THE CONTACT PULLED THE VEHICLE OVER TO THE SIDE OF THE ROAD. AFTER WAITING APPROXIMATELY 70 MINUTES ON THE SIDE OF THE ROAD, THE TIRE BURST INTO FLAMES. THE CONTACT WAS UNABLE TO PROVIDE THE TIRE MANUFACTURER, TIRE LINE, COMPLETE TIRE SIZE, OR DOT NUMBER. THE CONTACT STATED THAT THE FIRE ORIGINATED IN THE WHEEL WELL OF THE VEHICLE AND WAS NOT NECESSARILY…

Owner-reported narrative. 1,110 miles reported. Look up ODI 11094094 at NHTSA ↗

Owner report 11096619 · 2018-05-17 (May 17, 2018)

BREAKS CONTINUALLY SQUEAK IN REVERSE ON COLDER MORNINGS AT SLOW SPEEDS. EVEN IF THE CAR WARMS UP FOR SEVERAL MINUTES, THE LOUD SQUEAKING DOES NOT STOP.

Owner-reported narrative. 22,000 miles reported. Look up ODI 11096619 at NHTSA ↗

Owner report 11098638 · 2018-05-29 (May 29, 2018)

TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLC300. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 18V177000 (STRUCTURE, SEAT BELTS) MONTHS AGO. THE DEALER (ZT MOTORS OF FORT WALTON BEACH, 1000 N BEAL PKWY NW, FORT WALTON BEACH, FL 32547, [phone removed]) STATED THAT PARTS WERE UNAVAILABLE AND DID NOT KNOW WHEN THEY WOULD ARRIVE. THE MANUFACTURER WAS CONTACTED TO DETERMINE WHEN THE PART WOULD BE SUPPLIED TO THE DEALER. THE VIN WAS NOT AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

Owner-reported narrative. Look up ODI 11098638 at NHTSA ↗

Owner report 11113400 · 2018-07-24 (July 24, 2018)

TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ GLC300. THE CONTACT STATED THAT THE VEHICLE DOORS AUTOMATICALLY LOCKED WITH THE KEYS INSIDE OR OUTSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF ALEXANDRIA (200 S PICKETT ST, ALEXANDRIA, VA 22304, [phone removed]) FOR DIAGNOSTIC TESTING AND REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE VIA EMAIL. THE FAILURE MILEAGE WAS 6,124. THE VIN WAS NOT AVAILABLE.

Owner-reported narrative. 6,124 miles reported. Look up ODI 11113400 at NHTSA ↗

Recall history

12 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.

17V627000 · Air Bags:Frontal

Reported: 2017-10-06 (October 6, 2017)

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.

NHTSA campaign record ↗
17V715000 · Visibility:Sun/Moon Roof Assembly

Reported: 2017-11-14 (November 14, 2017)

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.

NHTSA campaign record ↗
18V177000 · Seat Belts: Rear/Other:Buckle Assembly | Structure:Body:Roof And Pillars

Reported: 2018-03-15 (March 15, 2018)

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.

NHTSA campaign record ↗
18V208000 · Air Bags:Frontal:Driver Side:Inflator Module

Reported: 2018-03-29 (March 29, 2018)

Mercedes-Benz USA LLC (MBUSA) is recalling certain 2018 AMG GT, AMG GT C, GLC43 AMG 4Matic, GLC300, GLC300 4Matic and GLC350e 4Matic vehicles. The housing for the driver side air bag inflator may have been made with defective steel. In the event of an air bag deployment, the defective steel may cause the inflator to improperly inflate the driver-side air bag and potentially rupture.

Consequence: In the event of a crash involving driver air bag deployment, an improperly inflated air bag and/or an inflator rupture with sharp metal fragments might result in serious injury or death to the driver or to occupants.

Remedy: MBUSA will notify owners, and dealers will replace the front driver air bag module, free of charge. The recall is expected to begin May 29, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.

NHTSA campaign record ↗
18V610000 · Exterior Lighting:Turn Signal

Reported: 2018-09-11 (September 11, 2018)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 GLC300 4MATIC Coupe, GLC300, GLC300 4MATIC, GLC350e 4MATIC, GLC43 AMG 4MATIC Coupe, and GLC43 AMG 4MATIC vehicles equipped with LED headlights. The front turn signals may have an incorrect color of pink or violet. 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: Turn signals that are the wrong color may not be as easily recognized by other drivers, increasing the risk of a crash.

Remedy: MBUSA will notify owners, and dealers will inspect the color of the turn signal, replacing the LED module as necessary, free of charge. The recall began November 2, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.

NHTSA campaign record ↗
18V683000 · Seat Belts: Rear/Other:Buckle Assembly | Structure:Body:Roof And Pillars

Reported: 2018-10-01 (October 1, 2018)

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.

NHTSA campaign record ↗
18V838000 · Air Bags:Sensor:Occupant Classification

Reported: 2018-11-27 (November 27, 2018)

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 C300 Cabriolet, C300 Coupe, C300 4Matic Cabriolet, C300, C300 4Matic Coupe, C300 4Matic, C43 AMG Cabriolet, C43 AMG Coupe, C63 S AMG Cabriolet, C350e Plug-In Hybrid, C63 AMG Cabriolet, C63 AMG Coupe, C63 S AMG Coupe, C63 AMG, C63 S AMG, 2018-2019 GLC300 4Matic Coupe, GLC300, GLC63 AMG Coupe, GLC300 4Matic, GLC350e Plug-In Hybrid, GLC43 AMG Coupe, GLC43 AMG, GLC63 S AMG Coupe, and GLC63 AMG vehicles equipped with Audio 20 head units and automatic child seat recognition. The status of the passenger side air bag may not display correctly.

Consequence: If the passenger air bag is incorrectly displayed as 'ON' when it is not, a front seat passenger may be unaware that the air bag will not deploy in the event of a crash, increasing their risk of injury.

Remedy: MBUSA will notify owners, and dealers will update the audio head unit software, free of charge. The recall began January 3, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018120009.

NHTSA campaign record ↗
21V058000 · Communication: Auto Crash Notification | Electrical System:Software

Reported: 2021-02-05 (February 5, 2021)

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.

NHTSA campaign record ↗
21V072000 · Communication: Auto Crash Notification | Communication

Reported: 2021-02-12 (February 12, 2021)

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.

NHTSA campaign record ↗
21V197000 · Structure:Body:Roof And Pillars

Reported: 2021-03-19 (March 19, 2021)

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.

NHTSA campaign record ↗
22V365000 · Communication: Auto Crash Notification | Electrical System:Software

Reported: 2022-05-20 (May 20, 2022)

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.

Consequence: 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.

Remedy: 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.

NHTSA campaign record ↗
23V854000 · Structure:Body:Roof And Pillars

Reported: 2023-12-15 (December 15, 2023)

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.

NHTSA campaign record ↗