Skip to content
Mercedes-BenzModel report

Mercedes-Benz 300SD Problems by Model Year

NHTSA recorded 7 consumer complaints across the 1 model years of the Mercedes-Benz 300SD (1993–1993) that have at least 5 complaints. 1993 has the most, with 7. Across all years, the part named most often is electrical system (4 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.

All 300SD model years

Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.

YearComplaintsMedian miRecallsTSBsScore (50 = typical)Trend
19937165,08603—Not enough data

Parts named most often, all years

Counts add up complaint mentions across the listed years. A complaint can name several parts.

Example complaints

One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.

1993: “The engine wiring harness of my 1993 Mercedes-Benz 300SD has cracked insulation throughout and is beginning to short-circuit with the risk of causing dangerous engine malfunction and fire. I have read many reports of other Mercedes-Benz cars of the same age range 1992-1997 having the exact same defect eco wiring . Just look at any online forum or talk to any mercedes technician. This is a known issue with mercedes that they refuse to recall.”

NHTSA complaint #10905561, filed 2016-09, 189,000 miles

Other Mercedes-Benz models

Mercedes-Benz C300
3,963 complaints
Mercedes-Benz E350
2,215 complaints
Mercedes-Benz E320
1,164 complaints
Mercedes-Benz ML350
952 complaints
Mercedes-Benz GLK350
901 complaints
Mercedes-Benz ML320
740 complaints
Mercedes-Benz C250
725 complaints
Mercedes-Benz GLC 300
657 complaints

All Mercedes-Benz models →

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology