2001 Mercedes-Benz ML320 Engine Problems
- Complaints
- 2about this part
- Share
- 1%of 136 total for the year
- Median mileage
- 200,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2001 Mercedes-Benz ML320, 1% of the 136 complaints for this model year. Where a mileage was given, the median is 200,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Ecm is malfunctioning and not controlling fuel injection and giving random misfire on cylinders 2, 3, 4, 5, 6. Causing check engine light to come on . Codes 0300, 0302,0303,0304,0305,0306.”
NHTSA complaint #11301012, filed 2020-01, 200,000 miles“The contact owns a 2001 Mercedes-Benz ML320. While driving various speeds, the engine stalled without warning. The vehicle was able to restart after a few minutes. All of the warning indicators were illuminated on the instrument panel. The dealer was unable to duplicate the failure. The manufacturer was notified of the failure. The failure mileage was 200,000.”
NHTSA complaint #10930296, filed 2016-12, 200,000 milesRelated service bulletins
- 11017039Apr 1, 2025Complaint Vehicle with atypical reduced heat output. Cause Silicate granulate may have escaped from a damaged bag in the expansion reservoir (not visible), reducing the coolant…
- 10135598Mar 25, 2015Engine diagnosis warning lamp lights up in instrument cluster, fault code U145400: "Implausible data were received from the ethanol sensor"
Engine: other model years
Other parts of the 2001 Mercedes-Benz ML320
48 complaintsElectronic stability control
33 complaintsSteering
25 complaintsElectrical system
16 complaintsVehicle speed control
16 complaintsFuel system
11 complaintsAir bags
8 complaintsOther or unknown
5 complaintsSeats
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsEngine cooling
3 complaintsLatches, locks and linkages
3 complaints
← All problems reported for the 2001 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