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Mercedes-Benz ML320Model year report

2007 Mercedes-Benz ML320 Problems

Complaints
16filed with NHTSA
Median mileage
43,000miles, 10 complaints with mileage
Recalls
22 do-not-drive
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
21 mpgcombined, 3.0L 6-cyl · diesel 4WD/AWD · 19 city / 24 hwy

Sources: NHTSA records for the 2007 Mercedes-Benz ML320 (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

NHTSA recorded 16 consumer complaints for the 2007 Mercedes-Benz ML320. The part named most often is engine cooling, with 5 complaints (31% of the total), followed by brakes (3) and seats (3). 10 of the complaints include a mileage, and 50% of those were filed for vehicles with under 50,000 miles; the median is 43,000 miles. Of all complaints, 2 a fire, 1 an injury, according to the filers. NHTSA lists 2 recall campaigns (2 marked do-not-drive) and 83 technical service bulletins for this model year. Engine cooling complaints overlap with 6 technical service bulletins filed under the same part. Brakes complaints overlap with 2 recall campaigns covering the vacuum and 1 technical service bulletin 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

Engine cooling: “I purchased a used 2007 mercedes ML320 cdi on march 12. After a week of driving - I inspected the engine compartment (I usually do). I noticed engine oil dripping (small but noticeable amount) on the serpentine belt. I did not think it was urgent - so I took pictures so I can send it to my seller to claim warranty. On march 23, I was driving with my family on I-65. Suddenly, steering became very hard. It was a curving highway so I was forced to go into other lanes. Lucky, traffic was not heavy so I did not swerve into any other vehicle. …”

NHTSA complaint #10393093, filed 2011-03, 36,000 miles

Brakes: “The contact owns a 2007 Mercedes-Benz ML320. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulics) however, the part to do the recall repair was not yet available. The dealer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect.”

NHTSA complaint #11477152, filed 2022-08

Seats: “On 2/16/09 while out driving we smelled an electrical burning odor inside our 2007 ml320cdi just as we arrived at our destination. We looked around the vehicle and under the hood to try and figure out what was burning and found nothing unusual. The odor was gone by the time we got back in the vehicle. We continued to drive the vehicle with no problems and no odors until 2/21/09. On this day while running errands my husband got out of the drivers seat, closed the door while I remained in the car and I saw the drivers seat back (near the driver's door) start smoking. …”

NHTSA complaint #10261009, filed 2009-03, 27,435 miles

Electrical system: “Years ago, while driving through new mexico, my dash and command center flashed off and rebooted. It was a little concerning because we were using the GPS exclusively for our directions. There was also a transmission warning light that came on warning us to get to the nearest dealer, without shifting gears. This happened perhaps 10-15 times until I was able to detour to the mb dealer in albuquerque - absolutely wonderful people. They told me that it would sound strange but the problem was caused by a faulty glow plug sensor or module - which they didn't have in stock. …”

NHTSA complaint #10579606, filed 2014-04, 50,000 miles

Mileage when problems were reported

50% of the 10 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 23,600 and 110,000 miles.

10%0–1020%10–2520%25–5010%50–7510%75–10010%100–15020%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (10 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 43,000 miles.

Complaints by year filed

Trend: falling. Complaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

200920112014201852023
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.

Crash test ratings

NHTSA's 5-Star Safety Ratings for the 2007 Mercedes-Benz ML320. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.

VersionOverallFrontalSideSide poleRollover
ML-Class · sedan AWDnot rated5 / 5——4 · 17.9% risk

Ratings before the 2011 model year come from an older, less demanding test and are not comparable with ratings for 2011 and later.

Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.

Fuel economy and running cost

EPA ratings for each 2007 Mercedes-Benz ML320 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
ML320 CDI 4matic 4WD/AWD3.0L 6-cyl · diesel7-speed automatic192421$4,550

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 2007 Mercedes-Benz ML320 → · 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. 83 on record; the latest 10 are shown.

See all 83 bulletins →

Other model years of the Mercedes-Benz ML320

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20092854,0003——Not compared (fewer than 3 comparable model years)Falling
20082194,5002—21—Falling
20071643,0002—21—Falling
200555,0000———Not enough data
20032251,7230—15—Stable
20028889,6701—15Not compared (before 2008)Falling
200113687,8000—17Not compared (before 2008)Falling
200016677,0000—16Not compared (before 2008)Falling
199912571,5000—17Not compared (before 2008)Falling
199813379,2790—17Not compared (before 2008)Stable

All Mercedes-Benz ML320 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2007 Mercedes-Benz ML320 have?

NHTSA recorded 16 consumer complaints for the 2007 Mercedes-Benz ML320 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2007 Mercedes-Benz ML320 is reported most often?

Engine cooling is named most often, in 5 complaints (31% of the total), followed by brakes with 3.

Has the 2007 Mercedes-Benz ML320 been recalled?

NHTSA lists 2 recall campaigns for this model year, 2 of them with a do-not-drive advisory. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2007 Mercedes-Benz ML320 get?

The EPA rates the 2007 Mercedes-Benz ML320 (ML320 CDI 4matic, 3.0L 6-cyl · diesel) at 21 mpg combined, 19 city and 24 highway, with an estimated annual fuel cost of $4,550 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2007 Mercedes-Benz ML320 reported?

Among the 10 complaints that include a mileage, the median is 43,000 miles and the middle half falls between 23,600 and 110,000 miles; 50% 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. Crash ratings are from NHTSA’s New Car Assessment Program. 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.