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#BS-2011-MERS40-1486

2011 Mercedes Benz S400

Based on reports from 8 owners and 2 recalls for this exact model.

Complaints

Crashes

Fires

Recalls

TSBs

✅

Preliminary Verdict

Green Light

Based on 8 complaints, 0 crashes, 0 fires, and 2 recalls.

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Mechanic Inspection Checklist

!Check the ElectricalHIGH

2 owners reported electrical issues — failures commonly reported around 65K miles.

!Inspect the EngineMED

Look for symptoms of wear and premature failure

+ 4 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: Electrical (2 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

Electrical2 (25%)

Engine2 (25%)

Suspension1 (13%)

Wheels & Tires1 (13%)

Hybrid Propulsion System1 (13%)

Fuel System1 (13%)

2011 Mercedes Benz S400: Known Issues & Problem Areas

Electrical Issues

Electrical complaints account for 25% of all reports filed for the 2011 Mercedes Benz S400, with 2 owners filing complaints with NHTSA. The median mileage at time of complaint is 65,000 miles, suggesting issues tend to surface around the 65K-mile mark.

Engine Issues

Engine complaints account for 25% of all reports filed for the 2011 Mercedes Benz S400, with 2 owners filing complaints with NHTSA. Owners should pay attention to engine-related symptoms during test drives and pre-purchase inspections.

Suspension Issues

Suspension complaints account for 13% of all reports filed for the 2011 Mercedes Benz S400, with 1 owners filing complaints with NHTSA. Owners should pay attention to suspension-related symptoms during test drives and pre-purchase inspections.

Wheels & Tires Issues

Wheels & Tires complaints account for 13% of all reports filed for the 2011 Mercedes Benz S400, with 1 owners filing complaints with NHTSA. Owners should pay attention to wheels & tires-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

Complaints filed with NHTSA by year for the 2011 Mercedes Benz S400. Recent trend: decreasing.

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Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (2 recalls)

11V493000Sep 2014

TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

Mercedes-Benz USA, LLC (Mercedes Benz) is recalling certain model year 2011-2012 S550, S550 CGI, S63, S600 Bi-Turbo, S65 AMG, S550 4-Matic, and S550 CGI 4-Matic and S400 Hybrid vehicles manufactured from March 3, 2011, through July 30, 2011, for failing to comply with the requirements of Federal Motor Vehicles Safety Standard (FMVSS) number 138, "Tire Pressure Monitoring System (TPMS)." The tire pressure monitoring system indicators may only illuminate for a portion of the time required by the standard and under certain conditions may not re-illuminate immediately after the vehicle is restarted as required.

12V557000Feb 2013

FUEL SYSTEM, GASOLINE

Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4Matic, S63 AMG, C300, C300 4Matic, E350, GLK350, GLK350 4Matic, CL550 4Matic, and CL63 AMG vehicles manufactured from April 18, 2011, through July 12, 2011. Due to an irregularity stemming from the molding process of the fuel filter flange, the fuel filter flange may crack when operated in high temperatures.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 8 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 2 recalls found for this vehicle.

Repair Cost Data

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

Other Mercedes Benz S400 Model Years

2013 2012 2011 2010

View all Mercedes Benz S400 years →

2011 Mercedes Benz S400: Frequently Asked Questions

What is the most common problem with the 2011 Mercedes Benz S400?

The most commonly reported issue with the 2011 Mercedes Benz S400 is related to the electrical, with 2 complaints filed with NHTSA.

Is the 2011 Mercedes Benz S400 reliable?

The 2011 Mercedes Benz S400 has 8 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 2011 Mercedes Benz S400 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 2011 Mercedes Benz S400 have any recalls?

Yes, the 2011 Mercedes Benz S400 has 2 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.

What mileage do Mercedes Benz S400 problems start?

Based on 7 complaints with mileage data, the median mileage at time of complaint is 65,000 miles. The highest concentration of reported issues occurs in the 120–150K 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?

100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.

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10 sections of AI analysis based on 8 owner reports. Know before you buy.

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