Is the 2014 Mercedes-Benz GL550 reliable?

The 2014 Mercedes-Benz GL550 has 11 complaints filed with NHTSA (0.9x the segment average). Our reliability verdict: above-average. Most common issue: ENGINE problems.

What are common problems with the 2014 Mercedes-Benz GL550?

Top problems: ENGINE (3 complaints, avg repair $500); SEATS/RESTRAINTS (2 complaints, avg repair $500); STEERING (2 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2014 Mercedes-Benz GL550?

No recalls have been issued for the 2014 Mercedes-Benz GL550.

How much does it cost to fuel a 2014 Mercedes-Benz GL550?

The 2014 Mercedes-Benz GL550 gets 15 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $3200. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2014 Mercedes-Benz GL550?

Estimated US average full-coverage insurance for the 2014 Mercedes-Benz GL550 is approximately $2,079/year (suv-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.

2014 Mercedes-Benz GL550

Problems, Recalls & Reliability Report

Above Average

Quick Summary

The 2014 Mercedes-Benz GL550 has 11 owner complaints filed with NHTSA — that's 0.9x the segment average of 12. The most common issue is engine problems (27% of all complaints), specifically: tapping noise developed in the engine, after dealership inspection using borescope, scored cylinder walls were found, resulting to engine replacement. please see: lena jamil, et al. v. mercedes-benz usa, llc (case no: 2:22-cv-08130-fla-afm).

1 injury

Total Complaints

Recalls Issued

—/5

Safety Stars

0.9x

vs Segment Avg

Known Problems(top 5 of 7)

ENGINE

3 complaints

27%

• Tapping noise developed in the engine, after dealership inspection using borescope, scored cylinder walls were found, resulting to engine replacement. Please see: Lena Jamil, et al. v. Mercedes-Benz USA, LLC (Case No: 2:22-cv-08130-FLA-AFM)
• The contact owns a 2014 Mercedes-Benz GL550. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with leaky exhaust valves. The dealer determined that the exhaust valves needed to be replaced. The vehicle was taken to an

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

“Tapping noise developed in the engine, after dealership inspection using borescope, scored cylinder walls were found, resulting to engine replacement. Please see: Lena Jamil, et al. v. Mercedes-Benz USA, LLC (Case No: 2:22-cv-08130-FLA-AFM)”

— NHTSA complaint filing

Fuel Cost Calculator for 2014 Mercedes-Benz GL550

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$3,201

Per month

$267

Per mile

26.7¢

MPG

City driving (worst-case MPG)

$3,693/yr

Highway driving (best-case MPG)

$2,667/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2014 Mercedes-Benz GL550

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

$2,079

Full coverage / month

$173

Liability only / year

$732

vs US avg

+24%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (suv-luxury)1.35x

× theft risk1.00x

× safety rating1.00x

× vehicle age0.92x

= Full coverage estimate$2079

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

Maintenance & Warranty

Recommended Mercedes-Benz GL550 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 2014 GL550, 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

ENGINE(~50K mi)

$500

SEATS/RESTRAINTS(~50K mi)

$500

STEERING(~50K mi)

$500

OTHER(~50K mi)

$500

SUSPENSION(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 11 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: Tapping noise developed in the engine, after dealership inspection using borescope, scored cylinder walls were found, resulting to engine replacement. Please see: Lena Jamil, et al. v. Mercedes-Benz USA, LLC (Case No: 2:22-cv-08130-FLA-AFM)
Typically appears around 50K miles. Repair cost ~$500
☐
SEATS/RESTRAINTS: MERCEDES GL 550. FRONT SEAT BELT PRE-TENSIONERS ACTIVATED WITH NO IMMINENT CRASH. RANDOM OCCURRENCE IN BOTH FRONT SEATS AND RELEASED AFTER 2-3 SECONDS. *TR
Typically appears around 50K miles. Repair cost ~$500
☐
STEERING: DAIMLER AG, (DAG) THE MANUFACTURER OF MERCEDES-BENZ VEHICLES, HAS DETERMINED THAT ON CERTAIN GLE, GLS AND GLE COUP VEHICLES (166, 292 PLATFORM) WITH THE ACTIVE CURVE SYSTEM (ACS), THE OIL IN THE ACS'S OIL RESERVOIR COULD START FOAMING UNDER DYNAMIC DRIVING SITUATIONS IN COMBINATION WITH AN OIL LEVEL
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: I HAD JUST ARRIVED HOME. THE CAR WAS OFF AND I WAS PARKED IN MY GARAGE. I OPENED THE DOOR BUT IT DIDN'T OPEN ALL THE WAY TO THE FIRST HINGE. MY HAND WAS IN THE DOOR AS IT SLOWLY STARTED TO CLOSE. THE DOOR CAUGHT SLIGHTLY AND THE SOFT CLOSE FEATURE ACTIVATED. MY THUMB WAS CAUGHT IN THE DOOR AND WAS C
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)