2015 Mercedes-Benz GL450 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
18 owner complaints analyzed
3 distinct recall campaigns
38,508 mi median reported failure mileage
Scope: 2015 model year. Data snapshot: . 10 complaints include usable failure mileage.
Most common problems
Engine is the most frequently named component, appearing in 7 of 18 complaints (38.9%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 2 | 11.1% |
| Engine operation | 1 | 5.6% |
| Steering behavior | 1 | 5.6% |
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 |
|---|---|
| Engine | 7 |
| Suspension | 3 |
| Unknown Or Other | 3 |
| Electrical System | 2 |
| Power Train | 2 |
| Seats | 2 |
| Electronic Stability Control (Esc) | 1 |
| Seats:Front Assembly:Head Restraint | 1 |
Engine: 7; Suspension: 3; Unknown Or Other: 3; Electrical System: 2; Power Train: 2; Seats: 2; Electronic Stability Control (Esc): 1; Seats:Front Assembly:Head Restraint: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 4 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 2 |
| 150,000 and above | 0 |
Under 25,000: 4; 25,000 to 49,999: 1; 50,000 to 74,999: 2; 75,000 to 99,999: 1; 100,000 to 149,999: 2; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (4). 8 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 |
|---|---|
| 2014 | 1 |
| 2015 | 3 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
2014: 1; 2015: 3; 2018: 2; 2019: 1; 2020: 2; 2021: 2; 2022: 3; 2023: 1; 2024: 1; 2025: 1; 2026: 1
Pattern summary
Engine leads the component reports. Electrical and battery issues appears in 2 complaint narratives. Engine operation appears in 1 complaint narratives. Steering behavior appears in 1 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 11679345 · 2025-08-08 (August 8, 2025)
To Whom It May Concern: I am writing to formally request the National Highway Traffic Safety Administration’s assistance regarding a critical safety defect in my 2015 Mercedes‑Benz GL 450 (M278 engine). I purchased this vehicle in October 2024 with 76,000 miles, and it now has about 87,000 miles. Alarmingly, I recently received a quote for $13,000 to repair a camshaft failure and extensive electrical damage. I was unaware of these issues when I purchased this car. I bought it under the illusion that it would be a safe vehicle for me and my chil…
Owner-reported narrative. Look up ODI 11679345 at NHTSA ↗
Owner report 11728375 · 2026-03-31 (March 31, 2026)
My 2015 Mercedes-Benz GLE 450 experienced an unexpected vehicle fire on Feb 13th 2026. The vehicle was just parked when I noticed smoke from the engine. The vehicle caught fire within a short period of time, and 911 was called. There was no known external cause for the fire. The incident appeared to originate from the engine compartment. This created a serious safety hazard and posed a risk of injury and property damage. The fire required immediate response from the fire department, and the vehicle was declared a total loss. The vehicle is cu…
Owner-reported narrative. Look up ODI 11728375 at NHTSA ↗
Owner report 11130224 · 2018-09-18 (September 18, 2018)
TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ GL450. WHILE DRIVING 40 MPH, THE VEHICLE STALLED AND THE PRE-SAFETY FUNCTION LIMITED WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS PUSHED OVER TO THE SIDE OF THE ROAD BY THE CONTACT AND PASSENGER. THE CONTACT ATTEMPTED TO RESTART THE VEHICLE, BUT IT FAILED TO START. THE VEHICLE WAS TOWED TO MERCEDES-BENZ OF ARCADIA (101 N SANTA ANITA AVE, ARCADIA, CA 91006, [phone removed]) WHERE IT WAS DIAGNOSED THAT A LOOSE SCREW WAS NOT FASTENED BY THE MANUFACTURER AND AN UNKNOWN WIRE WAS DETACHED, WHICH CAUSED THE …
Owner-reported narrative. 25,000 miles reported. Look up ODI 11130224 at NHTSA ↗
Owner report 11451058 · 2022-02-08 (February 8, 2022)
Steering wheel will not go up and down. It will go in and out. This needs a recall! This is a HUGE problem with many Mercedes.
Owner-reported narrative. Look up ODI 11451058 at NHTSA ↗