2019 Mercedes-Benz GLC 300 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
46 owner complaints analyzed
12 distinct recall campaigns
41,500 mi median reported failure mileage
Scope: 2019 model year. Data snapshot: . 10 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 13 of 46 complaints (28.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 6 | 13.0% |
| Braking behavior | 5 | 10.9% |
| Transmission and shifting | 4 | 8.7% |
| Engine operation | 3 | 6.5% |
| Steering behavior | 1 | 2.2% |
| Fuel system concerns | 1 | 2.2% |
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.
| Category | Count |
|---|---|
| Electrical System | 13 |
| Engine | 11 |
| Unknown Or Other | 11 |
| Power Train | 5 |
| Communication | 3 |
| Fuel/Propulsion System | 3 |
| Structure:Body | 3 |
| Air Bags | 2 |
Electrical System: 13; Engine: 11; Unknown Or Other: 11; Power Train: 5; Communication: 3; Fuel/Propulsion System: 3; Structure:Body: 3; Air Bags: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 2 |
| 25,000 to 49,999 | 4 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 1 |
| 150,000 and above | 0 |
Under 25,000: 2; 25,000 to 49,999: 4; 50,000 to 74,999: 2; 75,000 to 99,999: 1; 100,000 to 149,999: 1; 150,000 and above: 0
25,000 to 49,999 miles has the most reports with usable mileage (4). 36 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.
| Category | Count |
|---|---|
| 2019 | 1 |
| 2021 | 3 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 10 |
| 2026 | 7 |
2019: 1; 2021: 3; 2022: 8; 2023: 8; 2024: 9; 2025: 10; 2026: 7
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 6 complaint narratives. Braking behavior appears in 5 complaint narratives. Transmission and shifting appears in 4 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.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11468180 · 2022-06-08 (June 8, 2022)
The contact owns a 2019 Mercedes-Benz GLC300. The contact received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.
Owner-reported narrative. Look up ODI 11468180 at NHTSA ↗
Owner report 11474981 · 2022-07-20 (July 20, 2022)
The contact owns a 2019 Mercedes-Benz GLC300. The contact received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication) however, the part to do the recall repair was unavailable. The dealer was made aware of the issue and the contact was informed that the recall update would be sent OTA (over-the-air); however, the update was still pending. The manufacturer had been notified of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not ex…
Owner-reported narrative. Look up ODI 11474981 at NHTSA ↗
Owner report 11433403 · 2021-09-17 (September 17, 2021)
The contact owns a 2019 Mercedes Benz GCLCLASS. The contact stated that the brake system failed. The contact stated when driving at 25mph when the brake pedal was engaged the brake pedal went to the floorboard the vehicle crashed a pole and came to stop. there were no warning lights before during or after the failure occurred. The vehicle was towed to a mechanic shop. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 10,000.
Owner-reported narrative. 10,000 miles reported. Look up ODI 11433403 at NHTSA ↗
Owner report 11443463 · 2021-12-11 (December 11, 2021)
I was going through drive thru waiting in line, when suddenly the car started to accelerate sharply, I put two feet on the brakes to stop the forward motion of vehicle - could not stop or place in park or neutral. their was ample room from the vehicle in front.. slightly removed feet from brake, suv lunged at vehicle in front kept on lunging then came to a halt...vehicle went back to normal operation.
Owner-reported narrative. Look up ODI 11443463 at NHTSA ↗
Owner report 11666765 · 2025-06-13 (June 13, 2025)
- My transmission is malfunctioning. It is available for inspection. - My car is not allowing me to shift from reverse to drive. When I try to put it in drive, it gets stuck in neutral. My safety is at risk as I was trying to do a quick 3-point turn and got stuck in the lane. - Yes, the problem has been confirmed by an independent service center. There was a recall by Mercedes Benz for the same issue in 2020, but for some reason my car isn't included. - The vehicle has been inspected by an independent service center - No warning lamps or mes…
Owner-reported narrative. Look up ODI 11666765 at NHTSA ↗
Owner report 11700738 · 2025-11-21 (November 21, 2025)
The contact owns a 2019 Mercedes-Benz GLC300. The contact stated that while shifting from reverse to drive, the vehicle stalled and remained in neutral. After the vehicle stalled, the vehicle took approximately 8 minutes before the vehicle could be shifted into drive. Once in drive, the vehicle would jerk and shift to D3 before accelerating. The check engine warning light would illuminate while in reverse. The vehicle was taken to the dealer, who diagnosed a transmission failure due to a malfunctioning valve body and low pump pressure. The deal…
Owner-reported narrative. 60,000 miles reported. Look up ODI 11700738 at NHTSA ↗
Owner report 11470529 · 2022-06-22 (June 22, 2022)
While driving on the interstate (65mph) in traffic, there was a sudden loss of power causing deceleration and the inability to maintain speed. A collision was barely avoided both from being rear-ended and from trying to safely move to the shoulder while other traffic passed. A certified mechanic later determined the piston in cylinder 2 broke, the spark plug broke and the piston rings pulled to the top. The mechanic also said, "Replacement of engine required." The vehicle has 52,839 miles (2,839 miles above the 50,000 warranty). There were…
Owner-reported narrative. Look up ODI 11470529 at NHTSA ↗
Owner report 11721035 · 2026-02-27 (February 27, 2026)
SUNROOF EXPLODED AND SHATTERED. I HEARD IT WHILE DRIVING AND HELD ON TIGHTLY TO THE STEERING WHEEL BEFORE I REALIZED WHAT IT WAS. THE DEALER AND MY AUTO INSURANCE HAVE BEEN CALLED, NEITHER PICKED UP, AND I LEFT EACH A VOICE MAIL MESSAGE. NO WARNING LAMPS, MESSAGES OR OTHER SYMPTOMS OF THE PROBLEM OCCURRED.
Owner-reported narrative. Look up ODI 11721035 at NHTSA ↗
Owner report 11666424 · 2025-06-11 (June 11, 2025)
On May 22, 2025, while parked, my 2019 Mercedes-Benz GLC300 spontaneously caught fire, completely destroying the vehicle. Thankfully, no one was inside, and no injuries occurred, but the property damage was significant. I later discovered Recall 21V961000 / Campaign 2022030003 affecting some 2019 GLC300s for fuel leaks at the fuel rail/injector interface, which pose a serious fire hazard. Further research has shown reports of loose ground connections in these vehicles as well, increasing the risk of sparks igniting leaked fuel. Given that my …
Owner-reported narrative. Look up ODI 11666424 at NHTSA ↗