Is the 2015 Mercedes-Benz ML400 reliable?

The 2015 Mercedes-Benz ML400 has 8 complaints filed with NHTSA (1.0x the segment average). Our reliability verdict: below-average. Most common issue: OTHER problems.

What are common problems with the 2015 Mercedes-Benz ML400?

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

Are there any recalls on the 2015 Mercedes-Benz ML400?

No recalls have been issued for the 2015 Mercedes-Benz ML400.

How much does it cost to fuel a 2015 Mercedes-Benz ML400?

The 2015 Mercedes-Benz ML400 gets 20 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $2400. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2015 Mercedes-Benz ML400?

Estimated US average full-coverage insurance for the 2015 Mercedes-Benz ML400 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.

2015 Mercedes-Benz ML400

Problems, Recalls & Reliability Report

Below Average

Quick Summary

The 2015 Mercedes-Benz ML400 has 8 owner complaints filed with NHTSA — that's 1.0x the segment average of 8. The most common issue is other problems (25% of all complaints), specifically: this new mercedes-benz ml400 has a manual transmission feature that without reason reverts back to automatic within about 10 seconds without any reason. this prevents the driver from being able to control traction in slippery or other difficult conditions, which clearly was our experience. this fe.

3 crash reports

Total Complaints

Recalls Issued

—/5

Safety Stars

1.0x

vs Segment Avg

Known Problems(top 5 of 6)

OTHER

2 complaints

25%

• THIS NEW MERCEDES-BENZ ML400 HAS A MANUAL TRANSMISSION FEATURE THAT WITHOUT REASON REVERTS BACK TO AUTOMATIC WITHIN ABOUT 10 SECONDS WITHOUT ANY REASON. THIS PREVENTS THE DRIVER FROM BEING ABLE TO CONTROL TRACTION IN SLIPPERY OR OTHER DIFFICULT CONDITIONS, WHICH CLEARLY WAS OUR EXPERIENCE. THIS FE
• I BELIEVE WITH MY HEART AND SOUL MY BEAUTIFUL WIFE WAS KILLED DUE TO FAILURE OF VEHICLE IN MOTION AND LOST ALL CONTROL.*DT*JB

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“THIS NEW MERCEDES-BENZ ML400 HAS A MANUAL TRANSMISSION FEATURE THAT WITHOUT REASON REVERTS BACK TO AUTOMATIC WITHIN ABOUT 10 SECONDS WITHOUT ANY REASON. THIS PREVENTS THE DRIVER FROM BEING ABLE TO CONTROL TRACTION IN SLIPPERY OR OTHER DIFFICULT CONDITIONS, WHICH CLEARLY WAS OUR EXPERIENCE. THIS FE”

— NHTSA complaint filing

Fuel Cost Calculator for 2015 Mercedes-Benz ML400

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$2,401

Per month

$200

Per mile

20.0¢

MPG

City driving (worst-case MPG)

$2,667/yr

Highway driving (best-case MPG)

$2,182/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 2015 Mercedes-Benz ML400

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 ML400 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 ML400, 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

OTHER(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

TRANSMISSION(~50K mi)

$500

BRAKES(~50K mi)

$500

STEERING(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 8 owner complaints for this specific year, here's what to check or ask about:

☐
OTHER: THIS NEW MERCEDES-BENZ ML400 HAS A MANUAL TRANSMISSION FEATURE THAT WITHOUT REASON REVERTS BACK TO AUTOMATIC WITHIN ABOUT 10 SECONDS WITHOUT ANY REASON. THIS PREVENTS THE DRIVER FROM BEING ABLE TO CONTROL TRACTION IN SLIPPERY OR OTHER DIFFICULT CONDITIONS, WHICH CLEARLY WAS OUR EXPERIENCE. THIS FE
Typically appears around 50K miles. Repair cost ~$500
☐
FUEL SYSTEM: The contact owns a 2015 Mercedes-Benz ML400. The contact stated while driving 45 MPH, the vehicle lost motive power without warning. The vehicle was towed to the residence. The dealer was contacted and stated the vehicle was not included in NHTSA Campaign Number: 22V955000 (Fuel System, Diesel, Fuel
Typically appears around 50K miles. Repair cost ~$500
☐
TRANSMISSION: THIS NEW MERCEDES-BENZ ML400 HAS A MANUAL TRANSMISSION FEATURE THAT WITHOUT REASON REVERTS BACK TO AUTOMATIC WITHIN ABOUT 10 SECONDS WITHOUT ANY REASON. THIS PREVENTS THE DRIVER FROM BEING ABLE TO CONTROL TRACTION IN SLIPPERY OR OTHER DIFFICULT CONDITIONS, WHICH CLEARLY WAS OUR EXPERIENCE. THIS FE
Typically appears around 50K miles. Repair cost ~$500
☐
BRAKES: I BELIEVE WITH MY HEART AND SOUL MY BEAUTIFUL WIFE WAS KILLED DUE TO FAILURE OF VEHICLE IN MOTION AND LOST ALL CONTROL.*DT*JB
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Mercedes-Benz ML400 — Year Comparison

How does 2015 compare to other years? Fewer complaints = more reliable.

2015

8Below Average

Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints: 8
Recalls: 0
Fire reports: 0
Crash reports: 3
Injury reports: 0
Segment avg: 8

Check a Specific VIN

See recalls for YOUR 2015 Mercedes-Benz ML400

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