3.5

2021 Mercedes-Benz GLS 450

Mercedes-Benz
Starts at:
$76,000
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Compare trims GLS 450 4MATIC SUV Shop options
New 2021 Mercedes-Benz GLS 450
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Key specifications

Highlights
Intercooled Turbo Gas/Electric I-6
Engine Type
20 City / 24 Hwy
MPG
362 hp
Horsepower
6
Seating Capacity
Engine
369 @ 1600
SAE Net Torque @ RPM
362 @ 5500
SAE Net Horsepower @ RPM
3.0 L/183
Displacement
Intercooled Turbo Gas/Electric I-6
Engine Type
Suspension
Multi-Link
Suspension Type - Rear (Cont.)
Double Wishbone
Suspension Type - Front (Cont.)
Multi-Link
Suspension Type - Rear
Double Wishbone
Suspension Type - Front
Weight & Capacity
0 lbs
Total Option Weight
N/A
Curb Weight
N/A
Aux Fuel Tank Capacity, Approx
24 gal
Fuel Tank Capacity, Approx
Safety
Standard
Blind Spot Monitor
Standard
Backup Camera
Standard
Stability Control
Standard
Brake Assist
Electrical
N/A
Maximum Alternator Capacity (amps)
N/A
Cold Cranking Amps @ 0° F (Primary)
Brakes
N/A
Drum - Rear (Yes or )
14 in
Rear Brake Rotor Diam x Thickness
15 in
Front Brake Rotor Diam x Thickness
Yes
Disc - Rear (Yes or )
See specifications list

Engine

369 @ 1600 SAE Net Torque @ RPM
362 @ 5500 SAE Net Horsepower @ RPM
3.0 L/183 Displacement
Intercooled Turbo Gas/Electric I-6 Engine Type

Suspension

Multi-Link Suspension Type - Rear (Cont.)
Double Wishbone Suspension Type - Front (Cont.)
Multi-Link Suspension Type - Rear
Double Wishbone Suspension Type - Front

Weight & Capacity

0 lbs Total Option Weight
N/A Curb Weight
N/A Aux Fuel Tank Capacity, Approx
24 gal Fuel Tank Capacity, Approx
N/A Maximum Trailering Capacity
N/A Wt Distributing Hitch - Max Tongue Wt.
N/A Wt Distributing Hitch - Max Trailer Wt.
N/A Dead Weight Hitch - Max Tongue Wt.
N/A Dead Weight Hitch - Max Trailer Wt.
N/A Maximum Payload Capacity
N/A Curb Weight - Rear
N/A Curb Weight - Front
5,467 lbs Base Curb Weight

Safety

Standard Blind Spot Monitor
Standard Backup Camera
Standard Stability Control
Standard Brake Assist

Electrical

N/A Maximum Alternator Capacity (amps)
N/A Cold Cranking Amps @ 0° F (Primary)

Brakes

N/A Drum - Rear (Yes or )
14 in Rear Brake Rotor Diam x Thickness
15 in Front Brake Rotor Diam x Thickness
Yes Disc - Rear (Yes or )
Yes Disc - Front (Yes or )
N/A Brake ABS System (Second Line)
4-Wheel Brake ABS System
4-Wheel Disc Brake Type

Photo & video gallery

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The good & the bad

This vehicle doesn't have any good or bad insights yet.

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Factory warranties

New car program benefits

Basic
4 years / 50,000 miles
Corrosion
4 years / 50,000 miles
Powertrain
4 years / 50,000 miles
Battery
8 years / 100,000 miles
Roadside Assistance
4 years / 50,000 miles

Certified Pre-Owned program benefits

Age / mileage
6 years old or less / less than 75,000 miles
Basic
1 year / unlimited miles
Dealer certification
164-point inspection
See all CPO program details

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Consumer reviews

62% of drivers recommend this car
3.5 / 5
Based on 8 reviews
Write a review
Comfort 5.0
Interior 4.9
Performance 3.8
Value 3.1
Exterior 4.9
Reliability 3.5

Most recent

By Mtntwins from Colorado Springs
Owns this car
December 15, 2022

Do Not Buy!!

Bought this car used with only 1100 miles. I have had it towed three times due to not starting due to constant software issues. It also will never read the key through my purse or coat pocket. I have to take the key out and hold it in front of the steering wheel for it to acknowledge it. Finally, one of the cameras does not work correctly so I constantly have a notification for that on my dash. That part has been back-ordered for months. I would not recommend this car. It has been a total nightmare.
  • Purchased a Used car
  • Used for Transporting family
  • Does not recommend this car
Comfort 5.0
Interior 5.0
Performance 5.0
Value 1.0
Exterior 5.0
Reliability 1.0
27 people out of 31 found this review helpful. Did you?
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By Asia Roberts Hurf from North Carolina
Owns this car
April 7, 2022

Totally Agravated Horrible New Car Experience

I purchased my Gls 2021 last year from White Plains Mercedes brand new and in 6 months there was an indicator for the 12 volt battery that powers the starter is low. That indicator went away. A month without any warning after that i go into my garage to start my vehichle and it would not start. I had to get it towed to Virginia Beach Mercedes Benz for service. I was told they had to change the main battery and update and program software in the 12volt battery. A month later the car would not start again i had to have it towed again. Filed a complaint with Mercedes USA and they were very dissmissive and unaccomodating to my issue. I asked the customer advocate what is a reasonable amount of times that my new car have to malfunction and having to be towed in for service for you to take the car back and give me a new car that is dependable and reliable and that works. I paid for a new car and this car is malfunctioning like a hooptie The advocate from corporate would not answer that question and was very dismissive. I was told by service for the second tow that my car did not start due to a soft ware update. Mercedes is clearly having problems with their Gls 450 2021. I do not recoomend this car. For the amount of money paid for this new vehichle i expected a better response and more accomodating from the corporate advocate.
  • Purchased a New car
  • Used for Commuting
  • Does not recommend this car
Comfort 5.0
Interior 5.0
Performance 1.0
Value 1.0
Exterior 5.0
Reliability 1.0
25 people out of 26 found this review helpful. Did you?
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FAQ

What trim levels are available for the 2021 Mercedes-Benz GLS 450?

The 2021 Mercedes-Benz GLS 450 is available in 1 trim level:

  • GLS 450 (1 style)

What is the MPG of the 2021 Mercedes-Benz GLS 450?

The 2021 Mercedes-Benz GLS 450 offers up to 20 MPG in city driving and 24 MPG on the highway. These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on vehicle options, trim level, driving conditions, driving habits, vehicle maintenance, and other factors.

What are some similar vehicles and competitors of the 2021 Mercedes-Benz GLS 450?

The 2021 Mercedes-Benz GLS 450 compares to and/or competes against the following vehicles:

Is the 2021 Mercedes-Benz GLS 450 reliable?

The 2021 Mercedes-Benz GLS 450 has an average reliability rating of 3.5 out of 5 according to cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Mercedes-Benz GLS 450 owners.

Is the 2021 Mercedes-Benz GLS 450 a good SUV?

Below are the cars.com consumers ratings for the 2021 Mercedes-Benz GLS 450. 62.5% of drivers recommend this vehicle.

3.5 / 5
Based on 8 reviews
  • Comfort: 5.0
  • Interior: 4.9
  • Performance: 3.8
  • Value: 3.1
  • Exterior: 4.9
  • Reliability: 3.5

Mercedes-Benz GLS 450 history

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