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Electrical systemPart report

1999 Mercedes-Benz 300 Electrical system Problems

Complaints
2about this part
Share
33%of 6 total for the year
Median mileage
74,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the electrical system of the 1999 Mercedes-Benz 300, 33% of the 6 complaints for this model year. Where a mileage was given, the median is 74,000 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.

“The contact owns a 1999 mercedes benz 300. The contact stated that he attempted to start the vehicle but the engine would not start. The contact exited the vehicle and tried to lock the doors but noticed that the key was not working. The contact used the spare key and drove the vehicle to the dealer where they stated that the main key needed to be replaced. The key was replaced. The manufacturer was notified of the failure. The failure mileage was 74,000.”

NHTSA complaint #10574461, filed 2014-03, 74,000 miles

Electrical system: other model years

YearComplaintsShare of year
1999233%
1997120%
1996225%
1995744%
19932462%
1992523%
1991316%
1988114%
198713%
198618%

Other parts of the 1999 Mercedes-Benz 300

Air bags
1 complaints
Engine cooling
1 complaints
Fuel system
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 1999 Mercedes-Benz 300

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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