1999 Mercedes-Benz ML430 Engine Problems
- Complaints
- 1about this part
- Share
- 2%of 44 total for the year
- Median mileage
- 120,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 1999 Mercedes-Benz ML430, 2% of the 44 complaints for this model year. Where a mileage was given, the median is 120,000 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.
“After exiting the freeway I noticed a loud exhaust sound coming from underneath the car. After pulling over iooked underneath the car ant the front driver's side catalytic converter split in half along the welds. Basically, the exhaust is venting directly to the open air without going through the emission system. The left side exhaust not holding together correctly. …”
NHTSA complaint #10509362, filed 2013-04, 120,000 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 1999 Mercedes-Benz ML430
18 complaintsTransmission and drivetrain
8 complaintsSteering
6 complaintsElectrical system
5 complaintsFuel system
5 complaintsBrakes
4 complaintsOther or unknown
2 complaintsSuspension
2 complaintsEquipment
1 complaintsLatches, locks and linkages
1 complaintsVehicle speed control
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 1999 Mercedes-Benz ML430
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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