Mercedes Benz 300 Series problems

Owners have filed 79 complaints about the Mercedes Benz 300 Series with NHTSA across model years 1988 to 1995. More of them are about the electrical system than anything else.

Every Mercedes Benz 300 Series year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

1 2 17 17 27 15

88 90 91 92 93 95

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

Year	Grade	Complaints	Crashes	Fires	Median miles	Most reported
1995	—	15	0	0	183,950	Electrical System
1993	—	27	0	2	140,500	Electrical System
1992	—	17	2	2	130,024	Electrical System
1991	—	17	0	0	—	Engine & Cooling
1990	—	2	0	0	—	Electrical System
1988	—	1	0	0	—	Other & Unspecified

What breaks on a Mercedes Benz 300 Series

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Electrical System 45 57.0%

Worst in 1993

Engine & Cooling 11 13.9%

Worst in 1992

Fuel & Propulsion 5 6.3%

Worst in 1993

Transmission & Drivetrain 4 5.1%

Worst in 1991

Windows, Mirrors & Wipers 3 3.8%

Worst in 1991

Acceleration & Cruise Control 2 2.5%

Worst in 1991

Lights 2 2.5%

Worst in 1991

Other & Unspecified 2 2.5%

Worst in 1988

Brakes 1 1.3%

Worst in 1991

Body & Structure 1 1.3%

Worst in 1992

Suspension 1 1.3%

Worst in 1991

Tires 1 1.3%

Worst in 1992

Seats 1 1.3%

Worst in 1991

Complaints filed over time

Every complaint about every Mercedes Benz 300 Series, by the month it reached NHTSA.

Oct 1998 peak 14 Sep 2013

Compare the Mercedes Benz 300 Series

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.

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