https://plaincars.com/make/mercedes-benz-gl450 New NHTSA complaints and recalls filed for the Mercedes-Benz Gl450. en-us Mon, 21 Sep 2026 10:43:54 GMT https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2124228 Tue, 26 Aug 2025 00:00:00 GMT The contact owns a 2011 Mercedes-Benz GL450. The contact stated that while driving at various speeds, the message for brake and traction control failure was intermittently displayed, causing the cruise control to disengage. The vehicle was taken to the dealer and was diagnosed with ha ydraulic control unit failure. The contact was informed that the hydraulic control unit needed to be replaced. The https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2121983 Tue, 19 Aug 2025 00:00:00 GMT The contact owns a 2008 Mercedes-Benz GL450. The contact stated that upon starting the vehicle, there was an abnormal shaking coming from the engine while attempting to steer the vehicle. No warning lights were illuminated. The vehicle was taken to a local independent mechanic to be diagnosed, and the contact was informed that the power steering reservoir and the power steering lines were faulty a https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2118579 Fri, 08 Aug 2025 00:00:00 GMT To Whom It May Concern: I am writing to formally request the National Highway Traffic Safety Administration’s assistance regarding a critical safety defect in my 2015 Mercedes‑Benz GL 450 (M278 engine). I purchased this vehicle in October 2024 with 76,000 miles, and it now has about 87,000 miles. Alarmingly, I recently received a quote for $13,000 to repair a camshaft failure and extensive electri https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2112410 Mon, 21 Jul 2025 00:00:00 GMT The contact owns a 2010 Mercedes-Benz GL450. The contact stated while driving 15 MPH and attempting to bring the vehicle of a complete stop, the vehicle slowed but failed to stop as expected. The contact stated that the brake pedal was depressed to the floorboard but was able to bring the vehicle to a stop by using the parking brake. The low brake fluid warning light was illuminated. The vehicle w https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2093699 Tue, 20 May 2025 00:00:00 GMT UNKNOWN https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2082517 Sun, 13 Apr 2025 00:00:00 GMT There were numerous Engine Oil Leak Recalls by Mercedes-Benz. There was a recent recalls announced in 2023, however, my vehicle 2014 GL450 with now about 50K miles, was not included in the list. Since there have been engine oil leaks problem reported and recalls, I'd like to report my car engine oil leaks problem too. It seems that the engine oil leaks problem is a "design" issue and across many c https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2071975 Fri, 07 Mar 2025 00:00:00 GMT Tailgate sometimes opens while driving. It sometimes takes many attempts to reclose it from the outside of car. It will not reclose using the electronic button on the door. The alert comes on on the dashboard and its extremely dangerous as luggage can fall out. This happened while highway driving last week, scary. Apparently after googling this, it is common issue. The tailgate is one big gate hin https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2062252 Mon, 03 Feb 2025 00:00:00 GMT The contact owns a 2007 Mercedes-Benz GL450. The contact stated that while her husband was driving at an undisclosed speed, he felt a sharp pinch coming from the driver’s side seat. Upon further inspection, the contact’s husband noticed an abnormal hole with smoke coming from the driver’s side seat. There was no visible fire present. No medical attention was sought. No warning light was illuminate https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2054556 Thu, 09 Jan 2025 00:00:00 GMT The EIS module we have found has an issue with the part from Japan that does not have enough Sauder on a part of it, so when the temp drops below 50 degrees or less the ignition starts but all the safety features go off and the computer shuts down the vehicle. Reason is the metal contracts in cold weather causing the connections to not fully meet. We have figured this out after many times of repl https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2054557 Thu, 09 Jan 2025 00:00:00 GMT The EIS module we have found has an issue with the part from Japan that does not have enough Sauder on a part of it, so when the temp drops below 50 degrees or less the ignition starts but all the safety features go off and the computer shuts down the vehicle. Reason is the metal contracts in cold weather causing the connections to not fully meet. We have figured this out after many times of repl https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2053271 Sun, 05 Jan 2025 00:00:00 GMT On this Engine 166 model, I experience noise when Idling and when driving, coming from Engine with no code to indicate what is the problem of the car. This create the heat of the Engine to go up than normal and make the fan to run at high speed. When I call dealer, they told me its common problem on these Engine 166, and I need new Engine. I wanted to get second opinion from different Dealership https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2046751 Mon, 09 Dec 2024 00:00:00 GMT The contact owns a 2010 Mercedes-Benz GL450. The contact stated while driving 45 MPH, the contact heard a loud noise and opened the sunroof and became aware that the sunroof panel had detached, and the glass fell inside the vehicle. The vehicle was not taken to an independent mechanic or dealer to be diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 24V874000 (VISIBI https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2045466 Wed, 04 Dec 2024 00:00:00 GMT There is a recall on some of the make & models of my truck with different years but, my truck has been having the same issue & I believe that myself & my family may be at risk. The recall states that if the oil level in the ACS reservoir is below the minimum level, the oil may foam & leak out of the vent holes in the reservoir cap. The leaking of oil in the presence of ignition source can increase https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2045467 Wed, 04 Dec 2024 00:00:00 GMT There is a recall on some of the make & models of my truck with different years but, my truck has been having the same issue & I believe that myself & my family may be at risk. The recall states that if the oil level in the ACS reservoir is below the minimum level, the oil may foam & leak out of the vent holes in the reservoir cap. The leaking of oil in the presence of ignition source can increase https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2044500 Sun, 01 Dec 2024 00:00:00 GMT brake line corrison and leak, results in no braking. https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2042570 Fri, 22 Nov 2024 00:00:00 GMT The contact owns 2015 Mercedes-Benz GL450. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the dealer, where DTC code: P060A00 was retrieved. The dealer determined that the solenoid valve had failed and needed to be replaced. The contact related the failure to TSB Number: 37 13 17 2029027/8. The vehicle was not repaired. The manufacturer was not not https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2038466 Thu, 07 Nov 2024 00:00:00 GMT The contact owns a 2007 Mercedes-Benz GL450. The contact stated that the SRS warning light was illuminated. Additionally, the contact stated that while the dealer was servicing the air suspension strut failures, the dealer informed the contact that the vehicle had sustained severe water damage. The dealer informed the contact that the water had leaked from the sunroof through the headliner and ont https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2038467 Thu, 07 Nov 2024 00:00:00 GMT The contact owns a 2007 Mercedes-Benz GL450. The contact stated that the SRS warning light was illuminated. Additionally, the contact stated that while the dealer was servicing the air suspension strut failures, the dealer informed the contact that the vehicle had sustained severe water damage. The dealer informed the contact that the water had leaked from the sunroof through the headliner and ont https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2034555 Tue, 22 Oct 2024 00:00:00 GMT Blinkers and horn stopped working windshield wipers coming on without being turned on it’s saying drive to workshop without shifting gears and won’t start in the middle of the highway https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2034556 Tue, 22 Oct 2024 00:00:00 GMT Blinkers and horn stopped working windshield wipers coming on without being turned on it’s saying drive to workshop without shifting gears and won’t start in the middle of the highway https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2014992 Fri, 09 Aug 2024 00:00:00 GMT While driving on the freeway, we picked up a big screw in our tire which immediately deflated. To continue our journey, we wanted to replace the tire with the spare wheel. To do that, we used the floor jack that came with the car and this would have been it's first use. While attempting to lift the vehicle, the threaded bushing of this scissor type floor jack completely stripped (see picture). Not https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2008463 Wed, 17 Jul 2024 00:00:00 GMT Brake booster got do not drive letter and contacted June 27,2024 and first week of july and said they would contact me and nothing yet. https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2007072 Fri, 12 Jul 2024 00:00:00 GMT A flash from the right headlight had occured. I thought it was the bulb, but turns out the ballist was shorted out. I removed the assembly from the vehicle to change the ballist and because I want to also change the lens on the assembly. When I got the old lens off, I found most of the wiring has heat distress, causing the casings to flake off. I have photos of this issue. The headlights are https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2007073 Fri, 12 Jul 2024 00:00:00 GMT A flash from the right headlight had occured. I thought it was the bulb, but turns out the ballist was shorted out. I removed the assembly from the vehicle to change the ballist and because I want to also change the lens on the assembly. When I got the old lens off, I found most of the wiring has heat distress, causing the casings to flake off. I have photos of this issue. The headlights are https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-2002539 Tue, 25 Jun 2024 00:00:00 GMT The contact owned a 2011 Mercedes-Benz GL450. The contact stated that while driving and attempting to make a right turn, the vehicle failed to stop, which led him to rear-end a truck in front. There were no warning lights illuminated. The contact sustained a fracture in the finger, and forehead injury caused by the impact with the steering wheel that required medical attention. The air bags did no https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-1993925 Thu, 23 May 2024 00:00:00 GMT The contact owns a 2014 Mercedes-Benz GL450. The contact stated that while driving 65 MPH, the vehicle stalled. The check engine warning light was illuminated. The vehicle was able to be driven to the residence. The vehicle was towed to the dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was then towed to an independent mechanic, who also determined https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-1977907 Sun, 24 Mar 2024 00:00:00 GMT I am reaching out to bring to your attention a significant manufacturing flaw in the Mercedes GL450 model, which poses a severe risk to both vehicle functionality and passenger safety. The issue pertains to water infiltration into the battery compartment situated beneath the front passenger seat and concealed beneath the carpet. Even minor rainfall or streetwater has been found to breach this comp https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-1977908 Sun, 24 Mar 2024 00:00:00 GMT I am reaching out to bring to your attention a significant manufacturing flaw in the Mercedes GL450 model, which poses a severe risk to both vehicle functionality and passenger safety. The issue pertains to water infiltration into the battery compartment situated beneath the front passenger seat and concealed beneath the carpet. Even minor rainfall or streetwater has been found to breach this comp https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-1977909 Sun, 24 Mar 2024 00:00:00 GMT I am reaching out to bring to your attention a significant manufacturing flaw in the Mercedes GL450 model, which poses a severe risk to both vehicle functionality and passenger safety. The issue pertains to water infiltration into the battery compartment situated beneath the front passenger seat and concealed beneath the carpet. Even minor rainfall or streetwater has been found to breach this comp https://plaincars.com/make/mercedes-benz-gl450 https://plaincars.com/make/mercedes-benz-gl450#complaint-1977477 Fri, 22 Mar 2024 00:00:00 GMT The contact owns a 2013 Mercedes-Benz GL450. The contact stated that the vehicle was parked; however, while opening the door to enter the vehicle, the message "Transmission not in P, Risk of Vehicle Rolling Away" was displayed. The contact turned off and restarted the vehicle, and moved the gear shifter in and out of park(P); however, the failure persisted. The contact stated that other unknown me