1999 Mercedes Benz M Class: Reliability Data

Source: NHTSA — 28 complaints
28
Total Complaints
100,100mi
Median Mileage
STEERING
Top Issue
0
Crash Reports

When Do Complaints Happen?

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

66,737 25th Percentile
100,100 Median Mileage
118,180 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STEERING
4
ELECTRICAL SYSTEM
2
ENGINE AND ENGINE COOLING
2
STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS
2
SEAT BELTS
2
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
1
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
1
SEAT BELTS:FRONT:BUCKLE ASSEMBLY
1
POWER TRAIN:MANUAL TRANSMISSION
1
POWER TRAIN:DRIVELINE:DRIVESHAFT
1

Severity Assessment

0
Crashes
1
Fires
0
Injuries
0
Deaths

Sample Complaint Reports

"RECALL 99V328000/ SEAT BELT LATCH MECHANISM. CONSUMER HAS BEEN WAITING FOR PARTS FOR OVER A MONTH, AND MANUFACTURER HAS NOT CONTACTED CONSUMER AFTER SEVERAL ATTEMPTS OF CALLS. *AK"
"DESIGN DEFECT IN SIDE REARVIEW MIRROR. IT WILL NOT EXTENDED FAR ENOUGH UP AND OUTWARDS, CAUSING POOR VISIBILITY. *AK *ML"
"TRANSMISSION FAILED, REPAIRED FOUR TIMES, ELECTRICAL SYSTEM, BATTERY FAILED, REPLACED, OZ SENSOR FAILED REPLACE 3 TIMES, FUEL SYSTEM PUMP AND SENSOR REPLACED, FRONT PASSENGER RESTRAINT SYSTEM FAILED"

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

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

STEERING 4 complaints
Median: 117,000 mi

Where Are Complaints Coming From?

Top states by complaint count.

MA: 7 CO: 5 FL: 5 TN: 3 CA: 2 WA: 2 NJ: 1 IN: 1 PA: 1 CT: 1

Who Files Complaints?

17.9%
Original Owners
82.1%
Second+ Owners

Mercedes Benz M Class — Other Years

See how this model compares across different model years.

YearComplaintsCrashes
2000321

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