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Engine coolingPart report

2000 Mercedes-Benz ML320 Engine cooling Problems

Complaints
27about this part
Share
16%of 166 total for the year
Median mileage
60,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 27 complaints about the engine cooling of the 2000 Mercedes-Benz ML320, 16% of the 166 complaints for this model year. Where a mileage was given, the median is 60,000 miles. 2 of these say a crash was involved, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I am the owner if a 2000 mercedes ML320. This morning as I came home on this car and suddenly it sped up and lost control when it came to the driveway. I leg was on the brake when I came to the driveway no way I could have put my leg on the accelerator. I believe there is a defect in its design and cause it to suddenly speed up. Please look into this since it can be a serious matter. My other 2 cars in the garage were badly damaged in addition to the this ML320.”

NHTSA complaint #10328445, filed 2010-05, 89,000 miles

“I have been the owner of a 2000 mercedes ML320 for about 6 years. The car was purchased from the dealer with approx. 30,000 miles. Today it has approx 73,000 miles. Since owning it, I have had several problems which were all out of warranty and which I feel were unwarranted and were not seriously attended to by mb or the dealer: this complaint form was very difficult to complete according to the fields provided. The equipment information included is not correct and was included just to get to the form. …”

NHTSA complaint #10408880, filed 2011-06, 51,000 miles

“I was driving up hill in slow traffic for about 5 to 10 miles per hour for a few miles then all the sudden learned car did not respond to the gas pedal I put pressure on. The car jerk a little bid and won't move much only by the inches. Then I had to pull off the road. I turned off the engine and waited for few minutes and started again, turned around and cancelled my trip. A similar instance happened once before several years ago. I took the car to the dealer and they found nothing wrong.”

NHTSA complaint #10308928, filed 2010-02, 57,000 miles

“This vehicle is under a federal recall for the catalytic converter. According to a service technician, this part is on back order and the dealer and manufacturer have been out of stock of the part for more than a month. No one can seem to give me and other owners a delivery date on the part. Meanwhile, I am driving a vehicle that sounds like a harley davidson motorcycle and like it is about to fall apart! I have been experiencing this problem for more than a month and it gets worse every week that I continue to drive it. …”

NHTSA complaint #10140254, filed 2005-10, 79,000 miles

“I own a 2000 mercedes benz ml 320. While my wife was driving the vehicle on february 1, 2003, the engine quit twice without warning and the vehicle lost all electrical power and steering and braking control. The first failure happened as she accelerated from a stop at an intersection. The second failure occurred shortly thereafter while driving down a street. She had to run into the curb to stop the vehicle. I have talked to another owner of a ml 320 that experienced an engine shutdown without warning while driving on a highway. …”

NHTSA complaint #10005271, filed 2003-02, 51,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2009414%
2008210%
2007531%
200256%
200132%
20002716%
19993528%
19983123%

Other parts of the 2000 Mercedes-Benz ML320

Steering
45 complaints
Brakes
34 complaints
Electrical system
20 complaints
Electronic stability control
16 complaints
Fuel system
16 complaints
Air bags
14 complaints
Transmission and drivetrain
12 complaints
Vehicle speed control
9 complaints
Body and structure
8 complaints
Visibility (wipers, defrost, mirrors)
7 complaints
Exterior lighting
5 complaints
Latches, locks and linkages
5 complaints

← All problems reported for the 2000 Mercedes-Benz ML320

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology