Your report: 3 of 4 steps complete75%

Car identifiedData collectedBasic analysisFull AI analysis

Finalize now

Free Preview

#BS-2020-MERGLS-6ED8

2020 Mercedes Benz Gls 450

Based on reports from 49 owners and 20 recalls for this exact model.

Complaints

Crashes

Fires

Recalls

TSBs

205

🟢

Preliminary Verdict

Proceed with Caution

Based on 49 complaints, 6 crashes, 0 fires, and 20 recalls.

See full verdict with buy/skip conditions

Preview: What's in your full report

Each card shows a real sample from your report — unlock all 10 sections from $1.20

Mechanic Inspection Checklist

!Check the ElectricalHIGH

14 owners reported electrical issues — failures commonly reported around 4K miles.

!Inspect the EngineMED

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: Electrical (14 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

Electrical14 (29%)

Engine7 (14%)

Fuel System5 (10%)

Drivetrain4 (8%)

Other3 (6%)

Forward Collision Avoidance: Adaptive Cruise Control3 (6%)

Forward Collision Avoidance: Automatic Emergency Braking3 (6%)

Brakes2 (4%)

2020 Mercedes Benz Gls 450: Known Issues & Problem Areas

Electrical Issues

Electrical complaints account for 29% of all reports filed for the 2020 Mercedes Benz Gls 450, with 14 owners filing complaints with NHTSA. The median mileage at time of complaint is 4,200 miles, suggesting issues tend to surface around the 4K-mile mark.

Engine Issues

Engine complaints account for 14% of all reports filed for the 2020 Mercedes Benz Gls 450, with 7 owners filing complaints with NHTSA. Owners should pay attention to engine-related symptoms during test drives and pre-purchase inspections.

Fuel System Issues

Fuel System complaints account for 10% of all reports filed for the 2020 Mercedes Benz Gls 450, with 5 owners filing complaints with NHTSA. Owners should pay attention to fuel system-related symptoms during test drives and pre-purchase inspections.

Drivetrain Issues

Drivetrain complaints account for 8% of all reports filed for the 2020 Mercedes Benz Gls 450, with 4 owners filing complaints with NHTSA. Owners should pay attention to drivetrain-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 Gls 450. Recent trend: decreasing.

Don't negotiate blind — know what this car costs to own

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

Get Report — From $1.20

Recall History (20 recalls)

19V587000Sep 2019

EQUIPMENT:APPLIANCE:AIR CONDITIONER

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350, GLE350 4MATIC, GLS450 4MATIC, and GLE450 4MATIC vehicles. The air conditioner drain hoses may have been incorrectly installed, causing water to drain from the air conditioner into the passenger compartment.

20V172000Jul 2020

STRUCTURE:FRAME AND MEMBERS

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE350, GLE450 AND GLS450 vehicles. The seams on the rear crossmember may have been insufficiently welded. This may allow cracks to form when towing, possibly causing the rear crossmember to detach from the vehicle.

20V329000Oct 2020

SUSPENSION:REAR:SHOCK ABSORBER

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE450, GLS450, and GLS580 vehicles. The sealing of the piston assembly in the front struts and rear shock absorbers may leak and fail prematurely.

20V626000Nov 2020

STEERING:ELECTRIC POWER ASSIST SYSTEM

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 GLE 350, GLE 450, GLE 580, GLS 450, GLS 580 vehicles equipped with an optional illuminated Mercedes-Benz star logo in the front grill. The star logo's electrical ground connection may not be installed properly, potentially affecting the function of other components that share the same ground connection, such as the power steering control unit, wiper motor, and/or the left headlight.

21V057000Apr 2021

STRUCTURE:INTERIOR PANELS:DASHBOARD

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 GLS 450, GLE 350, GLE 450, and 2021 AMG GLE53 vehicles. The dashboard surface may not be properly secured to the base material.

+ 15 more recalls in the full report

Recall severity analysis & seller scripts

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

Unlock

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 49 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 20 recalls found for this vehicle.

Repair Cost Data

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

Other Mercedes Benz Gls 450 Model Years

2024 2023 2022 2020 2019 2018

View all Mercedes Benz Gls 450 years →

2020 Mercedes Benz Gls 450: Frequently Asked Questions

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

The most commonly reported issue with the 2020 Mercedes Benz Gls 450 is related to the electrical, with 14 complaints filed with NHTSA.

Is the 2020 Mercedes Benz Gls 450 reliable?

The 2020 Mercedes Benz Gls 450 has 49 complaints, 6 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 Gls 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 Gls 450 have any recalls?

Yes, the 2020 Mercedes Benz Gls 450 has 20 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.

What mileage do Mercedes Benz Gls 450 problems start?

Based on 5 complaints with mileage data, the median mileage at time of complaint is 4,200 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.

Get the Full 2020 Mercedes Benz Gls 450 Report

10 sections of AI analysis based on 49 owner reports. Know before you buy.

Get Full Report — From $1.20Money-back guarantee

Instant delivery|One-time purchase|No hidden fees