"How reliable is the 1999 Mercedes Benz Ml430?"

"Based on 59 NHTSA complaints, the 1999 Mercedes Benz Ml430 has a median complaint mileage of 78000 miles. The most common issue is POWER TRAIN:AUTOMATIC TRANSMISSION."

"What are common problems with the 1999 Mercedes Benz Ml430?"

"The most frequently reported component in NHTSA complaints for the 1999 Mercedes Benz Ml430 is POWER TRAIN:AUTOMATIC TRANSMISSION, accounting for a significant portion of the 59 total complaints filed."

1999 Mercedes Benz Ml430: Reliability Data

Source: NHTSA — 59 complaints

Total Complaints

78,000mi

Median Mileage

POWER TRAIN:AUTOMATIC TRANSMISSION

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

65,000 25th Percentile

78,000 Median Mileage

98,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

POWER TRAIN:AUTOMATIC TRANSMISSION

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

ENGINE AND ENGINE COOLING:ENGINE

ENGINE AND ENGINE COOLING

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

STEERING

FUEL SYSTEM, GASOLINE

ELECTRICAL SYSTEM

UNKNOWN OR OTHER

ELECTRICAL SYSTEM:IGNITION

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"MODEL YEAR 2000, GAS STATION NOZZLE KEPT GETTING STUCK IN GAS TANK DUE TO NARROW OPENING WHICH CAUSED FUEL TO SPRAY ONTO CONSUMER, BURNING FACE/ SCALP/ HAIR/ EYES ,AND EYE LIDS. CONSUMER WAS AWARE OF OTHER PEOPLE HAVING SAME PROBLEM. CONSUMER CONTACTED MANUFACTURER, AND WAS TOLD VEHICLE COMPLIE..."

"THROTTLE LOCKS- CANNOT BE PUSHED DOWN BY A 250 LB DRIVER. THIS MAKES IT DIFFICULT TO EVEN PULL OUT OF A FILLING STATION. IT PROBABLY CAUSED A SERIOUS ACCIDENT IN JAN 2001 WHICH I TRIED TO CROSS A ROAD AND WAS HIT AND THE HONDA THAT HIT US WAS TOTALLED.*AK"

"I HAD JUST FILLED VEHICLE AND BOAT BEING TOWED WITH GAS AND WAS CROSSING 4-LANE DIVIDED HIGHWAY TO ENTER HIGHWAY. UPON COMPLETION OF TURN ONTO HIGHWAY I STEPPED ON THE GAS TO GAIN NORMAL SPEED AND NOT IMPEED THE NOW APPROACHING STREAM OF TRAFFIC. AS I DEPRESSED THE GAS, THE ENGINE WOULD REV SLIGHTL..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28