Total Complaints
3 filings
MERCEDES-BENZ GL63 · model year
2014 MERCEDES-BENZ GL63
3 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2014MERCEDES-BENZGL63 carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2014 GL63 is service brakes with 1 filings, followed by steering (1) and engine (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 15 investigation files overlapping the 2014 GL63. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
3
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| SERVICE BRAKES | 1 |
| STEERING | 1 |
| ENGINE | 1 |
Recent Complaints
20221207STEERING
1. The power steering wheel is stuck at the top position once in a while. 2. Active curve system pump will fail and leak fluids in 30000-40000 miles.
20221207ENGINE
1. The power steering wheel is stuck at the top position once in a while. 2. Active curve system pump will fail and leak fluids in 30000-40000 miles.
20181026SERVICE BRAKES
THE CAR RAN OUT OF BRAKE FLUID - THERE WAS AN INDICATOR AND WHEN TAKEN TO SERVICE WE WERE TOLD THE RESERVOIR WAS EMPTY. WHAT IS ALARMING IS THAT THE CAR IS SERVICED VERY FREQUENTLY AND ONE SET OF BRAKES WAS RECENTLY REPLACED (ABOUT 6 MONTHS). MOREOVER THE DEALER STATED THERE WAS NO LEAK. THEY STATED THAT THEY DO NOT REPLENISH THE BRAKE FLUID WHEN REPLACING PADS, IN ESSENCE, BECAUSE THE FLUID SYSTEM IS SO FRAGILE AND THEY ARE AFRAID THEY WILL DO MORE HARM THAN GOOD. IT SEEMS LIKE A STRAIGHTFORWARD PROPOSITION THAT IF THE BRAKES ARE CHECKED AND PADS REPLACED FREQUENTLY, AND THERE IS NO LEAK, THERE SHOULD BE NO POSSIBLE WAY FOR THE FLUID TO GO EMPTY ABSENT A DEFECT IN THE CAR (EXCESS FLUID CONSUMPTION FOR SOME REASON BESIDES A LEAK) OR FAULTY MAINTENANCE PROCEDURES. I BELIEVE THE PRACTICE OF NOT REPLENISHING BRAKE FLUID - DESCRIBED TO ME AS THE NORMAL PRACTICE AT MERCEDES SERVICE, NOT A 1-TIME MISTAKE - IS NEGLIGENT. CONTRIBUTING FACTORS INCLUDE (1) MERCEDES BRAKES ARE KNOWN TO WEAR
Mileage: 57,000
Compare 2014MERCEDES-BENZGL63 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2014 MERCEDES-BENZ GL63 have?▼
The 2014 MERCEDES-BENZ GL63 has 3 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2014 MERCEDES-BENZ GL63?▼
The most-complained component for the 2014 MERCEDES-BENZ GL63 is SERVICE BRAKES with 1 complaints. Other frequently reported areas include STEERING and ENGINE.
Is the 2014 MERCEDES-BENZ GL63 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.