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1992 Mercedes Benz 300SD

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

About this comparison →
1Owner complaints

Model-year median: 4

0Recall campaigns

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0Investigations

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How this year compares

Owner complaints by model year

Other model years Selected year
1
19927
1993
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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Electrical System
1

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 1 of 1 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

Electrical System complaints

1 reports
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195,560 miles · Jun 17, 2014
Electrical System

ENGINE WIRING HARNESS PART# 140 540 2005. THIS HARNESS HAS COMPLETELY DETERIORATED CAUSING THE ENGINE TO BE INOPERABLE. AFTER MONTHS OF RESEARCH ONLINE AND PHONE CALLS TO MB I HAVE NO PARTS AND NO ANSWERS TO THE PROBLEM. SO MANY OF THESE CARS HAVE HAD THESE PROBLEMS AND YET NO RECALL HAS BEEN ISSUED. WHY? IT IS A FIRE WAITING…

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ENGINE WIRING HARNESS PART# 140 540 2005. THIS HARNESS HAS COMPLETELY DETERIORATED CAUSING THE ENGINE TO BE INOPERABLE. AFTER MONTHS OF RESEARCH ONLINE AND PHONE CALLS TO MB I HAVE NO PARTS AND NO ANSWERS TO THE PROBLEM. SO MANY OF THESE CARS HAVE HAD THESE PROBLEMS AND YET NO RECALL HAS BEEN ISSUED. WHY? IT IS A FIRE WAITING TO HAPPEN. THERE ARE MANY HARNESS AVAILABLE FOR VARIOUS MODELS WITH THE INFAMOUS "BIODEGRADABLE" WIRING PROBLEM. THERE ARE MANY DIFFERENT PRICE RANGES ALSO, BUT THEY ARE AVAILABLE. AS FOR THE ONE THAT I NEED IT IS NOT AVAILABLE AT ANY COST. THIS IS ABOVE ALL THE MOST CONFUSING AND UNBELIEVABLE THING I HAVE HEARD CONCERNING AN ISSUE FOR WHICH THE MANUFACTURER KNOWS IS A PROBLEM. THE NHTSA NOT RECOGNIZING THIS AS A SAFETY PROBLEM IS ABSOLUTELY UNACCEPTABLE. YOU WOULD THINK THE COMPANY THAT INVENTED THE AUTOMOBILE WOULD STEP UP AND GIVE A RESOLUTION TO THE PROBLEM. *TR

NHTSA ODI #10598965

Official recalls

0

No recalls in this snapshot.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.