2023 Mercedes-Benz Gls 450 4matic problems, complaints & recalls
Most-reported problem areas: Service Brakes (3) · Wheels (1) · Fuel/Propulsion System (1)
🧭 Reliability snapshot
Compared against other Mercedes-Benz Gls 450 4matic model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (5)
Electrical System:wiring 2024-03-15 · campaign 24V207000 · 116,020 vehicles
Defect: 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.
Risk: An overheated ground connection can increase the risk of a fire.
Fix: 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.
Power Train:automatic Transmission:control Module:software 2024-02-16 · campaign 24V118000 · 105,071 vehicles
Defect: 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.
Risk: An engine stall increases the risk of a crash.
Fix: 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.
Fuel System, Gasoline:delivery:fuel Pump 2023-12-21 · campaign 23V880000 · 79,676 vehicles
Defect: 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.
Risk: A loss of drive power can increase the risk of a crash.
Fix: 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, October 1, 2024, and December 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 23V-445.
Fuel System, Gasoline:delivery:fuel Pump 2023-06-26 · campaign 23V445000 · 143,551 vehicles
Defect: 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.
Risk: A loss of drive power can increase the risk of a crash.
Fix: 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.
Structure:body 2023-03-17 · campaign 23V178000 · 70,225 vehicles
Defect: 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.
Risk: Detached trim bars may cause a road hazard and increase the risk of a crash or injury.
Fix: 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.
Service bulletins (229)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Steering 2026-09-26 · LI46.10-P-080896 · Service Bulletin/Repair Instructions
complaint slight creaking noises when steering. cause noises may come from one or more sleeves of the horn contact plate. remedy remove the horn contact plate and check the sleeves for noise; see attached video. if necessary, apply lubricant to the sleeves.
Power Train 2026-09-26 · LI27.00-P-073124 · Service Bulletin/Repair Instructions
complaint customer complaints relating to automatic transmission 725.0 (nag3 classic /9g‑tronic automatic transmission) and 725.1 (nag3 facelift/9g‑tronic automatic transmission facelift) for faster, more effective and more targeted diagnosis, intelligent predictive repair (ipr) has been developed a
Engine 2026-09-26 · LI18.00-P-073137 · Service Bulletin/Repair Instructions
complaint sporadic warning message in instrument cluster "engine oil pressure, stop switch off vehicle" (or similar) is shown in red on vehicles with low mileage. cause directional control valve may stick. remedy 1‑ read off oil level in instrument cluster and correct if necessary. 2‑ perform approx
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Engine 2026-09-17 · LI20.10-P-075374 · Service Bulletin/Repair Instructions
complaint red coolant warning in instrument cluster. fault codes u019f00 or u019f87 current/stored in mrg1 control unit. cause various causes remedy perform guided test for fault code u019f with xentry diagnosis. verify the following connections are clean and tight. correct any problems and retest p
Electrical System 2026-09-15 · LI82.60-P-080383 · Service Bulletin/Repair Instructions
complaint radio station cover art does not refresh when switching stations. the ui continues to show the old station’s artwork instead of updating to the new one. cause when a new station change request is triggered, a temporary glitch is causing the head unit application to fail to overwrite the pr
Showing the 6 most recent of 229 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-04-14 · Service Brakes“the car recently underwent a software update at the dealership for a backup camera issue. when i was driving home on the highway, the car suddenly braked and the seat belts automatically tightened up. this happened 3 additional times on the highway about 5 days later. i had turned off the automatic braking system and it seemed to go away. then,…”
2024-10-02 · Service Brakes“there have been 3 incidents where the car responded to unknown stimuli by braking hard. 3 months ago it happened while making a left turn through an intersection, driving about 10 mph the brakes unexpectedly locked up, luckily the person behind me took evasive action and didn't hit me; 2 weeks later it happened again, i was driving on i-45 attemp…”
2024-08-21 · Service Brakes“when coming to a stop and applying the break, the transmission stalled. a warning was issued around lane keeping assist and a second warning. then the transmission light was on. it was not at risk in the moment because no one was behind me and i was coming to a stop sign. if it prevented me from stopping i might have gone through the stop sign i…”
2024-07-24 · Fuel System, Gasoline · 11,000 mi“the contact owns a 2023 mercedes-benz gls450. the contact received notification of nhtsa campaign number: 23v880000 (fuel system gasoline) however, the part to do the recall repair was unavailable. the contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. the manufacturer was made aware of the issue. t…”
2023-10-04 · Fuel/Propulsion System“twice the vehicle has stalled while driving. i see that there is a recall on my model for a faulty fuel pump which causes this problem, but my dealer claims my vehicle is not part of the recall even though it is having the same issue.…”
2023-08-09 · Engine“i have a new gls450 and on two separate occasions the car has shut down at a stop with no warning. first time was approximately mid july of 2023 with about 1,700miles. while at a stop the instrument panel displayed a text box with the words “malfunction” across the screen, and proceeded to shut down. after a minute we were able to restart the car. …”
2023-05-25 · Wheels“this is [xxx], a mercedes customer who purchased a brand new 2023 gls 450 (vin:[xxx] ) in april 2023 from the mercedes dealer in white plains ny. i am contacting you about the mercedes rusting claim. on may 22, 2023, less than a month after the purchase, a sheer of orange powdery rust was discovered (video available) on all steel frames of the fou…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.