2009 Mercedes Benz GL450 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
15 owner complaints analyzed
3 distinct recall campaigns
121,000 mi median reported failure mileage
Scope: 2009 model year. Data snapshot: . 9 complaints include usable failure mileage.
Most common problems
Air Bags is the most frequently named component, appearing in 8 of 15 complaints (53.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 13.3% |
| Electrical and battery issues | 1 | 6.7% |
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 |
|---|---|
| Air Bags | 8 |
| Suspension | 3 |
| Unknown Or Other | 3 |
| Engine | 2 |
| Service Brakes, Hydraulic | 2 |
| Electrical System | 1 |
| Electronic Stability Control (Esc) | 1 |
| Exterior Lighting | 1 |
Air Bags: 8; Suspension: 3; Unknown Or Other: 3; Engine: 2; Service Brakes, Hydraulic: 2; Electrical System: 1; Electronic Stability Control (Esc): 1; Exterior Lighting: 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 | 1 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 6 |
| 150,000 and above | 1 |
Under 25,000: 1; 25,000 to 49,999: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 6; 150,000 and above: 1
100,000 to 149,999 miles has the most reports with usable mileage (6). 6 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 |
|---|---|
| 2017 | 9 |
| 2018 | 2 |
| 2019 | 1 |
| 2022 | 2 |
| 2026 | 1 |
2017: 9; 2018: 2; 2019: 1; 2022: 2; 2026: 1
Pattern summary
Air Bags leads the component reports. Braking behavior appears in 2 complaint narratives. Electrical and battery issues 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 11490054 · 2022-10-19 (October 19, 2022)
The contact owns a 2009 Mercedes-Benz GL450. The contact stated while driving at an undisclosed speed, the brake pedal was depressed, and the vehicle started shuddering. The check engine warning light was illuminated. The vehicle was towed to the dealer who informed the contact that the vehicle was not safe to drive. The vehicle was towed to the dealer where the recall repair of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) was completed; however, after the recall repair was completed, the vehicle failed to start. The dealer repl…
Owner-reported narrative. 143,300 miles reported. Look up ODI 11490054 at NHTSA ↗
Owner report 11724677 · 2026-03-16 (March 16, 2026)
The contact owns a 2009 Mercedes-Benz GL450. The contact stated that the ABS and check engine warning lights were illuminated, and the struts had failed. The vehicle was taken to the dealer to be repaired under NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic); however, the dealer informed the contact that the vehicle needed to be diagnosed prior to the recall repair, due to the failure. The contact declined to pay the diagnostic fee, and the vehicle was not diagnosed or repaired. The contact stated that the dealer failed to honor th…
Owner-reported narrative. 156,000 miles reported. Look up ODI 11724677 at NHTSA ↗