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#BS-1991-MER300-7AC9

1991 Mercedes Benz 300 Series

Based on reports from 17 owners and 0 recalls for this exact model.

Complaints
17
Crashes
0
Fires
0
Recalls
0
TSBs
0
✅

Preliminary Verdict

Green Light

Based on 17 complaints, 0 crashes, 0 fires, and 0 recalls.

See full verdict with buy/skip conditions

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Mechanic Inspection Checklist

!Check the Engine And Engine Cooling:cooling System:radiator AssemblyHIGH

1 owners reported engine and engine cooling:cooling system:radiator assembly issues — failures commonly reported around 118K miles.

!Inspect the Power Train:automatic Transmission:lever And Linkage:column ShiftMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Engine And Engine Cooling:cooling System:radiator Assembly (1 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Engine And Engine Cooling:cooling System:radiator Assembly1 (6%)
Power Train:automatic Transmission:lever And Linkage:column Shift1 (6%)
Vehicle Speed Control:accelerator Pedal1 (6%)
Electrical System:12v/24v/48v Battery1 (6%)
Exterior Lighting:tail Lights1 (6%)
Visibility:windshield Wiper/washer1 (6%)
Electrical System:wiring1 (6%)
Speed Control1 (6%)

1991 Mercedes Benz 300 Series: Known Issues & Problem Areas

Engine And Engine Cooling:cooling System:radiator Assembly Issues

Engine And Engine Cooling:cooling System:radiator Assembly complaints account for 6% of all reports filed for the 1991 Mercedes Benz 300 Series, with 1 owners filing complaints with NHTSA. The median mileage at time of complaint is 118,000 miles, suggesting issues tend to surface around the 118K-mile mark.

Power Train:automatic Transmission:lever And Linkage:column Shift Issues

Power Train:automatic Transmission:lever And Linkage:column Shift complaints account for 6% of all reports filed for the 1991 Mercedes Benz 300 Series, with 1 owners filing complaints with NHTSA. Owners should pay attention to power train:automatic transmission:lever and linkage:column shift-related symptoms during test drives and pre-purchase inspections.

Vehicle Speed Control:accelerator Pedal Issues

Vehicle Speed Control:accelerator Pedal complaints account for 6% of all reports filed for the 1991 Mercedes Benz 300 Series, with 1 owners filing complaints with NHTSA. Owners should pay attention to vehicle speed control:accelerator pedal-related symptoms during test drives and pre-purchase inspections.

Electrical System:12v/24v/48v Battery Issues

Electrical System:12v/24v/48v Battery complaints account for 6% of all reports filed for the 1991 Mercedes Benz 300 Series, with 1 owners filing complaints with NHTSA. Owners should pay attention to electrical system:12v/24v/48v battery-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

14
01
1
04
1
05

Complaints filed with NHTSA by year for the 1991 Mercedes Benz 300 Series. Recent trend: stable.

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About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 17 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 0 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Mercedes Benz 300 Series Model Years

19981997199619951994199319921991199019891988
View all Mercedes Benz 300 Series years →

1991 Mercedes Benz 300 Series: Frequently Asked Questions

What is the most common problem with the 1991 Mercedes Benz 300 Series?
The most commonly reported issue with the 1991 Mercedes Benz 300 Series is related to the engine and engine cooling:cooling system:radiator assembly, with 1 complaints filed with NHTSA.
Is the 1991 Mercedes Benz 300 Series reliable?
The 1991 Mercedes Benz 300 Series has 17 complaints, 0 crash reports, and 0 fire reports filed with NHTSA. The full report analyzes whether these numbers indicate real risk or are proportional to the vehicle’s popularity.
How much does it cost to fix 1991 Mercedes Benz 300 Series problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 1991 Mercedes Benz 300 Series have any recalls?
No recalls have been issued for the 1991 Mercedes Benz 300 Series according to NHTSA records.
What mileage do Mercedes Benz 300 Series problems start?
Based on 2 complaints with mileage data, the median mileage at time of complaint is 118,000 miles. The highest concentration of reported issues occurs in the 30–60K mile range. The full report breaks down exactly which components fail at each mileage bracket.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
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