Is the 2015 Mercedes-Benz GL350 reliable?

The 2015 Mercedes-Benz GL350 has 7 complaints filed with NHTSA (0.6x the segment average). Our reliability verdict: above-average. Most common issue: FUEL SYSTEM problems.

What are common problems with the 2015 Mercedes-Benz GL350?

Top problems: FUEL SYSTEM (2 complaints, avg repair $500); SPEED CONTROL (2 complaints, avg repair $500); VISIBILITY (1 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2015 Mercedes-Benz GL350?

No recalls have been issued for the 2015 Mercedes-Benz GL350.

How much does it cost to insure a 2015 Mercedes-Benz GL350?

Estimated US average full-coverage insurance for the 2015 Mercedes-Benz GL350 is approximately $1,971/year (sedan-luxury class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2015 Mercedes-Benz GL350

Problems, Recalls & Reliability Report

Above Average

Quick Summary

The 2015 Mercedes-Benz GL350 has 7 owner complaints filed with NHTSA — that's 0.6x the segment average of 12. The most common issue is fuel system problems (29% of all complaints), specifically: tl* the contact owns a 2015 mercedes benz gl350. the contact stated that the fuel tank started to leak onto the vehicle. the vehicle stalled because of the failure. roadside assistance helped the contact by placing fuel in the vehicle, but the fuel leak prevented the contact from being able to start.

1 crash report

Total Complaints

Recalls Issued

—/5

Safety Stars

0.6x

vs Segment Avg

Known Problems(top 5 of 5)

FUEL SYSTEM

2 complaints

29%

• TL* THE CONTACT OWNS A 2015 MERCEDES BENZ GL350. THE CONTACT STATED THAT THE FUEL TANK STARTED TO LEAK ONTO THE VEHICLE. THE VEHICLE STALLED BECAUSE OF THE FAILURE. ROADSIDE ASSISTANCE HELPED THE CONTACT BY PLACING FUEL IN THE VEHICLE, BUT THE FUEL LEAK PREVENTED THE CONTACT FROM BEING ABLE TO START
• WHILE THE VEHICLE IS TURNED ON BUT STATIONARY (E.G. STOPPED AT A RED LIGHT IN LIGHT TRAFFIC) I BEGAN TO SMELL DIESEL EXHAUST IN THE CABIN OF THE VEHICLE. THE ODOR WAS VERY STRONG AND I HAD TO LOWER THE WINDOWS IN ORDER TO BREATHE. THE MECHANIC INFORMED ME THAT THERE WAS AN OIL LEAK NEAR THE TURBO. I

Typical onset: 50K miles Est. repair: $500

“TL* THE CONTACT OWNS A 2015 MERCEDES BENZ GL350. THE CONTACT STATED THAT THE FUEL TANK STARTED TO LEAK ONTO THE VEHICLE. THE VEHICLE STALLED BECAUSE OF THE FAILURE. ROADSIDE ASSISTANCE HELPED THE CONTACT BY PLACING FUEL IN THE VEHICLE, BUT THE FUEL LEAK PREVENTED THE CONTACT FROM BEING ABLE TO START”

— NHTSA complaint filing

Estimated Insurance Cost for 2015 Mercedes-Benz GL350

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$1,971

Full coverage / month

$164

Liability only / year

$710

vs US avg

+18%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-luxury)1.28x

× theft risk1.00x

× safety rating1.00x

× vehicle age0.92x

= Full coverage estimate$1971

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Mercedes-Benz GL350 Service Intervals

Oil change

10K mi / 12 mo

Tire rotation

10K mi

Brake fluid

24 months

Transmission fluid

40K mi

Engine coolant

150K mi

Spark plugs

60K mi

Cabin air filter

20K mi

Engine air filter

40K mi

Differential (AWD/4WD)

40K mi

Service A / Service B alternating schedule. Requires MB-approved oil (229.5 spec typically).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Mercedes-Benz New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

4 yr / 50K mi

Powertrain

4 yr / 50K mi

Hybrid/EV battery

10 yr / 155K mi

Corrosion (rust perforation)

4 yr / 50K mi

Roadside assistance

4 yr / unlimited mi

EQ EV battery warranty is 10 years/155,000 miles

These are the terms for a new Mercedes-Benz. If you're buying a used 2015 GL350, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Mercedes-Benz dealer for VIN-specific remaining warranty.

Estimated Repair Costs

FUEL SYSTEM(~50K mi)

$500

SPEED CONTROL(~50K mi)

$500

VISIBILITY(~50K mi)

$500

ENGINE(~50K mi)

$500

DOORS/LATCHES(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 7 owner complaints for this specific year, here's what to check or ask about:

☐
FUEL SYSTEM: TL* THE CONTACT OWNS A 2015 MERCEDES BENZ GL350. THE CONTACT STATED THAT THE FUEL TANK STARTED TO LEAK ONTO THE VEHICLE. THE VEHICLE STALLED BECAUSE OF THE FAILURE. ROADSIDE ASSISTANCE HELPED THE CONTACT BY PLACING FUEL IN THE VEHICLE, BUT THE FUEL LEAK PREVENTED THE CONTACT FROM BEING ABLE TO START
Typically appears around 50K miles. Repair cost ~$500
☐
SPEED CONTROL: TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ GL350. WHILE DRIVING LESS THAN 5 MPH, THE VEHICLE SUDDENLY ACCELERATED AT A HIGH RATE OF SPEED. THE CONTACT APPLIED FORCE TO THE BRAKE PEDAL, BUT THE VEHICLE FAILED TO SLOW DOWN AND CRASHED INTO A PALM TREE. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT
Typically appears around 50K miles. Repair cost ~$500
☐
VISIBILITY: A BLANKET OF SNOW/ICE FORMED ON MY ROOF DURING THE MORNING. IT WAS NOT REMOVABLE DUE TO FREEZING AND BONDING TO THE ROOF. AS THE CAR HEATED UP INSIDE, THAT BLANKET BECAME LOOSE. WHEN I HIT MY BRAKES ON THE ROAD, THE BLANKET CAME DOWN THE FRONT WINDSHIELD BLOCKING MY VIEW OF THE ROAD. THE WIPERS STOP
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE: Took to South Bay Mercedes dealer in Torrance because of engine light on. Cause: "Obsolete CDI Control Unit Software" Repair: "Updated to latest software version" Charge: $224.99 because "not covered by Emissions Warranty Extension" Do not understand how Mercedes Benz does not provide a critica
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)