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Mercedes-Benz GL450Model year report

2016 Mercedes-Benz GL450 Problems

Complaints
13filed with NHTSA
Median mileage
5,000miles, 5 complaints with mileage
Recalls
5campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—no overall rating published
EPA fuel economy
19 mpgcombined, 3.0L 6-cyl 4WD · 17 city / 21 hwy

Sources: NHTSA records for the 2016 Mercedes-Benz GL450 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 13 consumer complaints for the 2016 Mercedes-Benz GL450. The part named most often is other or unknown, with 5 complaints (38% of the total), followed by seats (3) and engine (2). 5 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 5,000 miles. Of all complaints, 1 involved a crash, 1 a fire, according to the filers. NHTSA lists 5 recall campaigns and 78 technical service bulletins for this model year. Seats complaints overlap with 2 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Other or unknown: “The sunroof in this vehicle shattered overnight without any known cause. The vehicle was parked in the driveway at my home. No one was injured in this incident. The vehicle was last driven at 10 p.m. On 05/01/18 without the damage, and at 7:30 a.m. This morning, 05/02/18, when I was getting ready to leave my home, I noticed the middle of the sunroof was sticking up a little bit...it looked like a punch from the inside. When I opened the door, a big piece of the middle of the sunroof fell down onto the screen underneath it and the rest of it was shattered but still in place. …”

NHTSA complaint #11091309, filed 2018-05, 24,000 miles

Seats: “My father and mother in-law recently purchased a 2016 mercedes benz GL450 as our family car. The headrests for the 2nd row seats with the easy entry option appear to pose a comfort and safety issue for both car seats and shorter people... I would say 5'-3 and shorter. With the easy entry option the 2nd row head rests are only 2 position, fully lowered or fully extended. Fully adjustable heights are not possible. Both positions pose a comfort and safety issue. …”

NHTSA complaint #10763773, filed 2015-09, 35 miles

Engine: “We purchased the car in july 2019 and in addition to the car having warranty up to 50,000 miles, we purchased an additional service/repair package for $1,800.00 recently we noticed that when we first start driving the car has a noise on the right side, the noise is most noticeable when applying the brake and when releasing the brake. We took the car to mercedes benz of valencia and to say that the service department staff was unwilling to help is a gross understatement. …”

NHTSA complaint #11288654, filed 2019-12, 40,058 miles

Mileage when problems were reported

100% of the 5 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 3,500 and 24,000 miles.

60%0–1020%10–2520%25–500%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (5 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 5,000 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

20162201822021220242026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2016 Mercedes-Benz GL450 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
GL450 4matic 4WD3.0L 6-cyl7-speed automatic172119$4,350

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2016 Mercedes-Benz GL450 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 78 on record; the latest 10 are shown.

See all 78 bulletins →

Other model years of the Mercedes-Benz GL450

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2016135,0005—19—Not enough data
20151838,5083—19—Falling
20142156,0003—16—Rising
20133724,0003—1650 · TypicalStable
20124757,5003—150 · FewerFalling
20115573,0003—1550 · TypicalRising
20104292,1383—140 · FewerStable
200915121,0003—15—Falling
20085569,0002—1552 · TypicalStable
200711580,0002—15Not compared (before 2008)Falling

All Mercedes-Benz GL450 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2016 Mercedes-Benz GL450 have?

NHTSA recorded 13 consumer complaints for the 2016 Mercedes-Benz GL450 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2016 Mercedes-Benz GL450 is reported most often?

Other or unknown is named most often, in 5 complaints (38% of the total), followed by seats with 3.

Has the 2016 Mercedes-Benz GL450 been recalled?

NHTSA lists 5 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2016 Mercedes-Benz GL450 get?

The EPA rates the 2016 Mercedes-Benz GL450 (GL450 4matic, 3.0L 6-cyl) at 19 mpg combined, 17 city and 21 highway, with an estimated annual fuel cost of $4,350 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2016 Mercedes-Benz GL450 reported?

Among the 5 complaints that include a mileage, the median is 5,000 miles and the middle half falls between 3,500 and 24,000 miles; 100% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.