1998 Mercedes-Benz ML320 Engine Problems
- Complaints
- 1about this part
- Share
- 1%of 133 total for the year
- Median mileage
- 131,459miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 1998 Mercedes-Benz ML320, 1% of the 133 complaints for this model year. Where a mileage was given, the median is 131,459 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.
“My battery was low and unknown to me the ML320 for this year loses its transponder codes in the das security module when you try to start the vehicle with a low battery. This is evidentally the third key that has lost its programming on my vehicle due to low battery voltage. Cost so far is 499 for a key, weeks waiting for the key from germany, and 300 to program it once they recieve the key. Its a dealership only item so its very very costly. …”
NHTSA complaint #10669353, filed 2014-12, 131,459 milesRelated service bulletins
- 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 1998 Mercedes-Benz ML320
31 complaintsElectrical system
21 complaintsFuel system
20 complaintsVisibility (wipers, defrost, mirrors)
17 complaintsBrakes
16 complaintsBody and structure
12 complaintsTransmission and drivetrain
10 complaintsSeat belts
8 complaintsAir bags
7 complaintsVehicle speed control
7 complaintsSteering
6 complaintsEquipment
5 complaints
← All problems reported for the 1998 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