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1986 Mercedes Benz 300E

Owner reports · Recalls · Investigations

Limited comparison data

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

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

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: 4 of 11 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.

  • Air Bags. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel System, Gasoline. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports0 fire reports2 injury reports

Fuel System, Gasoline complaints

2 reports
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180,000 miles · Jan 12, 2006
Fuel System, Gasoline

I JUST EXPERIENCED MY 4TH FUEL TANK FRACTURE OVER 5 YEARS. THE FRACTURES OCCUR IN THE SURFACE OF THE TANK NOT CAUSED BY WEAR OF ANY SORT. THEY JUST SPONTANEOUSLY OCCUR. THE TANK IS COMPLETELY FACTORY INSTALLED IN THE TRUNK OF THE CAR THIS ALLOWS FUMES TO ENTER THE ENTIRE CAR. THIS IS A VERY DANGEROUS CONDITION. I HAVE NEVER EXP…

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I JUST EXPERIENCED MY 4TH FUEL TANK FRACTURE OVER 5 YEARS. THE FRACTURES OCCUR IN THE SURFACE OF THE TANK NOT CAUSED BY WEAR OF ANY SORT. THEY JUST SPONTANEOUSLY OCCUR. THE TANK IS COMPLETELY FACTORY INSTALLED IN THE TRUNK OF THE CAR THIS ALLOWS FUMES TO ENTER THE ENTIRE CAR. THIS IS A VERY DANGEROUS CONDITION. I HAVE NEVER EXPERIENCED A FRACTURED TANK IN ANY BRAND IN 40 YEARS OF DRIVING. THIS IS A SERIOUS MATTER. *JB

NHTSA ODI #10147609

100,000 miles · Aug 12, 2005
Fuel System, Gasoline

I HAVE EXPERIENCED HAIRLINE CRACK FAILURES IN THREE (3) SEPARATE FUEL TANKS PLACED INTO MY 1986 MERCEDES 300E 4 DOOR SEDAN OVER 6 YEARS. THESE CRACKS NEVER ALLOWED LIQUID TO ESCAPE, BUT FUMES DID REPEATEDLY EMIT INTO THE CAR TRUNK AND PASSENGER CABIN. AFTER BEING IN PLACE FOR 9 MONTHS THE 3RD TANK IS NOW LEAKING FUMES AND I HAVE…

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I HAVE EXPERIENCED HAIRLINE CRACK FAILURES IN THREE (3) SEPARATE FUEL TANKS PLACED INTO MY 1986 MERCEDES 300E 4 DOOR SEDAN OVER 6 YEARS. THESE CRACKS NEVER ALLOWED LIQUID TO ESCAPE, BUT FUMES DID REPEATEDLY EMIT INTO THE CAR TRUNK AND PASSENGER CABIN. AFTER BEING IN PLACE FOR 9 MONTHS THE 3RD TANK IS NOW LEAKING FUMES AND I HAVE DISCOVERED STAINING WHERE THE CRACKS EXIST. THIS IS, BY ITSELF, A VERY DANGEROUS CONDITION. TO HAPPEN THREE TIMES WITH THREE DIFFERENT REPLACEMENT TANKS IS EXCEPTIONAL! I WOULD LIKE TO SUGGEST THAT THIS INDICATES THERE MIGHT BE OTHERS WITH THE SAME PROBLEM INDICATING THAT THEIR MIGHT BE AN ORIGINAL DESIGN DEFECT IN THE TANK, ITS LOCATION (IT MIGHT BE GETTING SCRAPED BY SURROUNDING SHEET METAL), OR ITS BASIC MATERIAL CONSTITUTION; IE, TOO THIN OR POORLY ENGINEERED MATERIALS. *NM

NHTSA ODI #10132581

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

1

PE87001 · Sudden Acceleration

Opened Oct 2, 1986 · Closed Jan 14, 1987

Status: closed (inferred from source dates) · Vehicle Speed Control:linkages

SUMMARY OF INFORMATION FROM MANUFACTURER:MERCEDES-BENZ OF NORTH AMERICA(MBNA) REPORTED AN ADDITIONAL 4 CASES OF ALLEGED SUDDEN ACCELERATION OF THESUBJECT VEHICLES IN ADDITION TO THOSE PREVIOUSLY REPORTED TO NHTSA.ALLCASES WERE INVESTIGATED BY MBNA REPRESENTATIVES, AND NO TRENDS OR NOTABLESIMILARITIES WERE FOUND IN THE APPARENT CAUSES OF THE ALLEGED INCIDENTS.NO GEOGRAPHIC OR VEHICLE MILEAGE TRENDS WERE NOTED AMONG THE INCIDENTSREPORTED. MBNA CONDUCTED TESTS TO EVALUATE THE EFFECTS OF OPEN THROTTLE, OPENENGINE IDLE BYPASS VALVE, AND BRAKE APPLICATION UNDER VARYING CONDITIONSOF VEHICLE MOTION ON ASPHALT AND GRASSY SURFACES.THE RESULTS OF THESETESTS WERE PROVIDED TO NHTSA, AND INDICATE THAT THE SERVICE BRAKES WEREFULLY EFFECTIVE IN BRINGING THE VEHICLE TO A STOP FROM 30 MPH WITH A FULLYOPEN THROTTLE.IN ADDITION THE TESTS DEMONSTRATED A MAXIMUM ATTAINABLEVEHICLE SPEED OF ABOUT 5 MPH WITH A FULLY OPEN IDLE SPEED AIR VALVE.ANALYSIS:MBNA'S EVALUATIONS OF THE EIGHT VEHICLES REPORTED TO HAVEEXPERIENCED SUDDEN ACCELERATION INCLUDED UNDERHOOD INSPECTIONS TO IDENTIFYANY APPARENT CAUSES OF THE ALLEGED INCIDENTS; MECHANICAL INTERFERENCE OFCOMPONENTS WAS FOUND IN TWO VEHICLES, NEITHER OF WHICH RELATED TO A DESIGNDEFICIENCY.TESTS PERFORMED BY MBNA DEMONSTRATED THE CAPACITYOF THE SUBJECT VEHICLES TO BE CONTROLLED UNDER CONDITIONS OF HIGH ENGINEIDLE SPEED AND WITH A FULLY OPEN THROTTLE.PERFORMANCE OF THE VEHICLE ASDOCUMENTED BY MBNA'S TESTS, TOGETHER WITH THE LACK OF A STRONG FAILURETREND SUGGESTS THAT FURTHER INVESTIGATIVE EFFORT IS NOT WARRANTED ON THISISSUE.PROPOSED ACTION:CLOSE THIS PRELIMINARY EVALUATION.===