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Electrical systemPart report

1999 Mercedes-Benz ML320 Electrical system Problems

Complaints
3about this part
Share
2%of 125 total for the year
Median mileage
67,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the electrical system of the 1999 Mercedes-Benz ML320, 2% of the 125 complaints for this model year. Where a mileage was given, the median is 67,000 miles. 1 a fire, according to the filers.

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.

“Dt: intermittent delay of 7 seconds when given gas. The vehicle has been in the dealership 6 times, and they still haven't been able to figure the problem out. The car has had this problem for 2 years. The car is worse when it's hot outside and when the consumer is pulling out. The car doesn't have the problem when it's cooler outside. …”

NHTSA complaint #10121194, filed 2005-05, 71,000 miles

“While driving 25 MPH, one of the occupants noticed smoke coming from the left side of the hood. Everyone immediately got out of the vehicle. The fire department was contacted, came and extinguished the fire under the hood. The vehicle could no longer be driven.”

NHTSA complaint #10024838, filed 2003-06, 63,000 miles

“Total electrical failure after stopping, towed to dealer in va. For repair. Locks popping up and down like a machine gun, dealer has fixed 3 times, cd player failure after a month, dealer replaced complete unit, dash warning lights were either off at starting or some on or all off, dealer found no problem, seems to have healed. We do not trust the vehicle which we purchased new anymore. We are constantly awaiting something else to go wrong.”

NHTSA complaint #713055, filed 1999-10

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2009311%
2008419%
2007213%
200329%
20021922%
20011612%
20002012%
199932%
19982116%

Other parts of the 1999 Mercedes-Benz ML320

Engine cooling
35 complaints
Steering
29 complaints
Transmission and drivetrain
19 complaints
Fuel system
14 complaints
Brakes
11 complaints
Vehicle speed control
7 complaints
Visibility (wipers, defrost, mirrors)
7 complaints
Air bags
5 complaints
Other or unknown
5 complaints
Suspension
5 complaints
Body and structure
4 complaints
Electronic stability control
3 complaints

← All problems reported for the 1999 Mercedes-Benz ML320

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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