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#BS-2020-MERS45-19CD

2020 Mercedes Benz S 450

Based on reports from 4 owners and 4 recalls for this exact model.

Complaints

Crashes

Fires

Recalls

TSBs

112

✅

Preliminary Verdict

Green Light

Based on 4 complaints, 0 crashes, 0 fires, and 4 recalls.

See full verdict with buy/skip conditions

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Mechanic Inspection Checklist

!Check the Speed ControlHIGH

1 owners reported speed control issues — failures commonly reported around 2K miles.

!Inspect the VisibilityMED

Look for symptoms of wear and premature failure

+ 3 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: Speed Control (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

Speed Control1 (25%)

Visibility1 (25%)

Fuel System1 (25%)

Other1 (25%)

2020 Mercedes Benz S 450: Known Issues & Problem Areas

Speed Control Issues

Speed Control complaints account for 25% of all reports filed for the 2020 Mercedes Benz S 450, with 1 owners filing complaints with NHTSA. The median mileage at time of complaint is 1,700 miles, suggesting issues tend to surface around the 2K-mile mark.

Visibility Issues

Visibility complaints account for 25% of all reports filed for the 2020 Mercedes Benz S 450, with 1 owners filing complaints with NHTSA. Owners should pay attention to visibility-related symptoms during test drives and pre-purchase inspections.

Fuel System Issues

Fuel System complaints account for 25% of all reports filed for the 2020 Mercedes Benz S 450, with 1 owners filing complaints with NHTSA. Owners should pay attention to fuel system-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 2020 Mercedes Benz S 450. Recent trend: stable.

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

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Recall History (4 recalls)

21V058000Mar 2021

COMMUNICATION: AUTO CRASH NOTIFICATION

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.

21V197000Sep 2021

STRUCTURE:BODY:ROOF AND PILLARS

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018 GLC63 AMG, 2014-2017 S550, 2018-2020 S450, 2016-2019 GLE63 Coupe AMG, 2016 GLE450 Coupe, 2014-2020 S63 AMG, 2018-2019 S560, and 2019 GLC350e vehicles equipped with a panoramic sunroof. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair.

21V527000Sep 2021

AIR BAGS:SENSOR:SIDE IMPACT

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 CLS450, AMG E53, AMG CLS53, E350, E450, AMG GT43, AMG GT53, 2020 S450, S560, G550, AMG GLC63, 2020-2021 GLC300, and AMG G63 vehicles. The side crash sensor connectors may come loose, which could delay the activation of air bags and seatbelts during a side impact crash.

22V365000Jul 2022

COMMUNICATION: AUTO CRASH NOTIFICATION

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.

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. 4 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 4 recalls found for this vehicle.

Repair Cost Data

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

Other Mercedes Benz S 450 Model Years

2020 2019 2018

View all Mercedes Benz S 450 years →

2020 Mercedes Benz S 450: Frequently Asked Questions

What is the most common problem with the 2020 Mercedes Benz S 450?

The most commonly reported issue with the 2020 Mercedes Benz S 450 is related to the speed control, with 1 complaints filed with NHTSA.

Is the 2020 Mercedes Benz S 450 reliable?

The 2020 Mercedes Benz S 450 has 4 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 2020 Mercedes Benz S 450 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 2020 Mercedes Benz S 450 have any recalls?

Yes, the 2020 Mercedes Benz S 450 has 4 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.

What mileage do Mercedes Benz S 450 problems start?

Based on 1 complaints with mileage data, the median mileage at time of complaint is 1,700 miles. The highest concentration of reported issues occurs in the 0–30K 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 4 owner reports. Know before you buy.

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