2023 Mercedes-benz Gls450 problems

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The Mercedes-Benz GLS, formerly Mercedes-Benz GL-Class, is a full-size luxury crossover SUV produced by Mercedes-Benz since 2006. In each of its generations it is a three-row, seven-passenger vehicle positioned above the GLE (formerly Mercedes-Benz M-Class before 2016). The GLS is considered the flagship of the marque's SUV lineup, although the body-on-frame G-Class (originally intended for military off-roading but also offered in luxurious trims) is more expensive and has been in production longer.

The GLS shares the same unibody architecture with the GLE. Most GLS vehicles are assembled at the Mercedes plant in Alabama, except for a small number of early 2007 production vehicles which were manufactured in Germany. The first generation model (X164) was manufactured between 2006 and 2012 and was replaced in 2013 by the new generation GL-Class (X166).

From 2016 with the release of the facelifted second generation model, the GL-Class was renamed to GLS as per the revised nomenclature adopted by Mercedes. Under this scheme, SUVs use the base name "GL", followed by the model's placement in Mercedes-Benz hierarchy. The "G" is for geländewagen (German for off-road vehicle) and alludes the long-running G-Class. This is followed by the letter "L" that acts as a linkage with the letter "S", the SUV equivalent to the S-Class, marketing the GLS as the corresponding SUV to the S-Class full-size sedan.

2023 Mercedes-benz Gls450

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Common 2023 Mercedes-benz Gls450 problems

The Mercedes-Benz GLS450 2023 is a full-size luxury SUV that offers a spacious interior, advanced technology, and powerful performance. However, like any vehicle, it may have certain issues that owners have reported. Here are some common problems based on owner complaints:

  • Malfunctioning Infotainment System: Another owner reported that the infotainment system in their GLS450 displayed a "malfunction" error in yellow letters, with no further information provided. This issue caused frustration for the owner, who felt that the system should provide more detailed information to help diagnose the problem.
  • Fuel Efficiency: The GLS450's fuel efficiency has been a concern for some owners. The 450d diesel engine, while powerful, only achieves an average of 23mpg in real-world driving, despite an official figure of 32mpg.
  • Safety Features: Some owners have reported issues with the safety features in their GLS450. For example, one owner found that the drivers assist package, which includes features like emergency braking and lane assist, was not reliable and often tried to steer them off the road or engage the brakes unnecessarily.
  • AMG Package: Some owners have questioned the value of the AMG package, which includes body-colored moldings and larger wheels. While the package may add to the vehicle's aesthetic appeal, some owners have reported that the larger wheels can result in a bumpier ride and may not be worth the extra cost.

These are some of the common problems reported by owners of the Mercedes-Benz GLS450 2023. It is important to note that these issues may not affect all vehicles and that Mercedes-Benz is known for its high-quality vehicles and excellent customer service. If you are considering purchasing a GLS450, it is always a good idea to do your research, read reviews, and consider any potential issues before making a decision.

2023 Mercedes-benz Gls450 engine

Is the GLS 450 reliable?

Severity. The probability of a repair being a severe or major issue is 20% for the Mercedes-Benz GL450, compared to an average of 19% for luxury fullsize SUVs and 12% for all vehicle models.

Is it worth it to buy GLS?

Superb car and richest experience nice and just a little think I am the owner of Mercedes Benz GLS car and driving experience is superb and look like richest car of the world only for me. Service and maintenance is a bit expensive but the vehicle comfortable is top notch....

Does GLS 450 have air suspension?

What truly sets the GLS 450 apart is its remarkable suspension system. Equipped with airmatic air suspension, the vehicle offers adaptive damping, automatically adjusting to varying road conditions and driving modes.

How safe is Mercedes GLS?

And that's a good thing: the GLE achieved the maximum five star rating when it was assessed in 2019. It achieved a 91% score in the adult occupant protection category; a rating that puts the Merc two percent ahead of the BMW X5 (a car which shares much with the X7).

2023 Mercedes-benz Gls450 complaints

The NHTSA has received 0 complaints about various vehicle components related to the 2023 Mercedes-benz Gls450.

You can leave your car complaint via the special form below.

2023 Mercedes-benz Gls450 recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 5 recalls for different components of the 2023 Mercedes-benz Gls450.

2024-03-15
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: ELECTRICAL SYSTEM:WIRING
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 GLE 350, 2020-2024 GLE 450, 2020-2023 GLS 580, GLE 580, 2019-2023 GLS 450, 2021-2023 Maybach GLS 600, AMG GLS 63, 2021-2024 AMG GLE 53, AMG GLE 53 Coupe, and AMG GLE 63 S vehicles. A 48-Volt ground connection under the passenger seat may not be secured properly, resulting in the ground connection overheating.
  • Consequence: An overheated ground connection can increase the risk of a fire.
  • Remedy: Dealers will inspect and tighten the 48-Volt ground connection as necessary, free of charge. Owner notification letters were mailed on May 3, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024040002.
2024-02-16
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2023 GLE 450 and GLS 450 vehicles. The transmission may not fully downshift in certain conditions, causing the engine to stall.
  • Consequence: An engine stall increases the risk of a crash.
  • Remedy: Dealers will update the transmission control unit software, free of charge. Owner notification letters were mailed March 29, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
2023-12-21
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2024 GLE, GLS, C-Class, E-Class, S-Class, SL, GLC, CLS, AMG GT, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, causing a loss of drive power.
  • Consequence: A loss of drive power can increase the risk of a crash.
  • Remedy: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 28, 2024. Owner notification letters will be mailed in phases, on February 23, 2024, April 19, 2024, June 28, 2024, August 9, 2024, and October 1, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 23V-445.
2023-06-26
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.
  • Consequence: A loss of drive power can increase the risk of a crash.
  • Remedy: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 14, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023070012.
2023-03-17
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: STRUCTURE:BODY
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 GLE350, GLE450, GLE580, GLS450, GLS580, Maybach GLS600, AMG GLE53, AMG GLE63 S, and AMG GLS63 vehicles. The rear door window trim bars may detach from the vehicle while driving.
  • Consequence: Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
  • Remedy: Dealers will inspect and secure the rear window trim bars, as necessary, free of charge. Owner notification letters were mailed May 5, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of previous recall number 22V-680. MBUSA's number for this recall is 2023040011.
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Additional sources

More sources of information about 2023 Mercedes-benz Gls450 problems:

2019 GLS450 new owner, some issues - MBWorld.org Forums
2019 GLS450 new owner, some issues - MBWorld.org Forums
https://mbworld.org/forums/gls-class-x166/872837-2019-gls450-new-owner-some-issues.html

Aug 28, 2023 ... Final update on this, and not one I'm to happy with but it is what it is. I got my car back from the first dealer in my original post after they ...

2014 GL450 seized engine - is this common | Mercedes-Benz Forum
2014 GL450 seized engine - is this common | Mercedes-Benz Forum
https://www.benzworld.org/threads/2014-gl450-seized-engine-is-this-common.3118704/

Apr 19, 2023 ... Mercedes-Benz Forum. in this thread ... The M278 engine has problems with the cylinder (coating). ... #9 · Dec 21, 2023 (Edited). My 2013 GL450 has ...

Any GLS 580 reliability issues?? - MBWorld.org Forums
Any GLS 580 reliability issues?? - MBWorld.org Forums
https://mbworld.org/forums/gls-class-x167/869246-any-gls-580-reliability-issues.html

Jul 4, 2023 ... I found a well equipped 2021 Mercedes-Benz GLS 580 AWD 4MATIC with E-Body Control and other good stuff. Any thoughts?

Common 2017 Mercedes GLS 450 & GLS 550 Problems - Q&A on ...
Common 2017 Mercedes GLS 450 & GLS 550 Problems - Q&A on ...
https://www.justanswer.com/mercedes/m3nr5-2017-gls-450-when-drive-time-45.html

May 31, 2023 ... My 2017 GLS 450, when I drive it for a time, like 45+ minutes or so, it starts to have problem shifting gear. When I - Answered by a ...

2023 Mercedes-Benz GLS450 Windshield Wipers Not Working
2023 Mercedes-Benz GLS450 Windshield Wipers Not Working
https://repairpal.com/mercedes-benz/gls450/2023/windshield-wipers-not-working

Your location cannot be detected. Please enter your zipcode for nearby shops. Related 2023 Mercedes-Benz GLS450 Problems. Find the most common driver-reported ...

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