2019 Mercedes-Benz GLS450 Problems

I am reporting a serious safety defect in my 2019 Mercedes-Benz GLS450. My vehicle experienced low oil pressure warnings and engine warning lights, which were diagnosed as a faulty oil pump solenoid valve. The repair required removing major engine components, resulting in a cost of $5,000 that I paid personally. It is important to note that Mercedes-Benz updated the valve design in the following model year, indicating that the company was aware of a defect in the original design. This demonstrates that the failure is recurring and not isolated, creating a serious safety risk—low oil pressure can lead to catastrophic engine failure while driving, endangering the driver and passengers. I request that NHTSA: Document this as a potential safety defect. Investigate the prevalence of this issue. Consider initiating a recall or safety notice for affected GLS450 vehicles.

The contact owns a 2019 Mercedes-Benz GLS450. The contact stated upon starting the vehicle, the check engine warning light illuminated intermittently. The contact stated that the failure had become consistent. The vehicle was taken to the dealer, where it was diagnosed that the engine oil pump valve and the camshaft adjuster had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 91,000.

Vehicle was damaged by a school bus hitting the rear passenger corner. It damaged the rear tail light, brake light, turn signal and backup warning sensors. Parts to repair the vehicle are not available for the past 4 months. I called multiple times and the dealer cannot provide a date when the parts will be available. The total cost of repairs is $3200.00. To avoid paying rental car fees that the school would have to pay, I’m driving a unrepaired car. The cost to rent a car would exceed the cost to repair the vehicle by 3-4 times the total repair cost. It is a law that car manufacturers have parts available to repair vehicles damaged by accidents. I would like NHTSA enforce the law.

Update Communication Module SIM Card Software - MBUSA ID: [XXX], NHTSA Recall ID: 22V365. I received the recall letter from MBUSA in July 2022. I took my car to a local dealership on 8 Aug 22 and they told me after approximately two hours they couldn't update/do OTA. They told me I would need to park my car outside to receive the update. Once I got home I checked the MBUSA & NHTSA recall sites and noticed this recall for my vehicle shows it as updated, but I knew the dealer hadn't accomplished it, because they said they didn't. I'm not sure who submitted it as updated on both websites. We have the MercedesMe Connect applications on our iPhones and it shows the status of our vehicle, allows remote starting, has anti-theft tracking as well as valet tracking and remote disabling capabilities. It also show the Over-the-Air (OTA) updates. It shows our vehicles LAST OTA as being 14 Oct 2021. I believe this software application shows current status of the OTA software and that this recall update on your website and MBUSA is incorrect. How do I go about getting this recall resolved. I can send you a screenshot of our MercedesMe Connect showing the current status of our vehicles OTA software. I've attached the screenshots of my MercedesMe Connect's OTA information. Hopefully nothing happens accident wise and the OTA not work...this would be a major liability for both MBUSA and NHTSA having faulty information in your database concerning this recall as being updated/corrected. If I don't hear from you all, I'll take this matter up with my auto insurer USAA. Thank you! Sincerely, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

At first, the parking brake assist would appear when vehicle was put into park or when starting. We would have to release the parking brake each time. Then, the parking brake assist light would not go on, but the parking brake assist would engage and or be sticking while driving causing a burning smell and damage to the rear braking system including brake pads and calipers. The independent repair professional described this as being a very premature issue for this vehicle considering the age and mileage. The electronic parking brake actuators electric motors malfunctioned and failed causing resistance on the calipers. The car was undrivable and required us to obtain a rental car for several days.

Vehicle was damaged by a school bus hitting the rear passenger corner. It damaged the rear tail light, brake light, turn signal and backup warning sensors. Parts to repair the vehicle are not available for the past 4 months. I called multiple times and the dealer cannot provide a date when the parts will be available. The total cost of repairs is $3200.00. To avoid paying rental car fees that the school would have to pay, I’m driving a unrepaired car. The cost to rent a car would exceed the cost to repair the vehicle by 3-4 times the total repair cost. It is a law that car manufacturers have parts available to repair vehicles damaged by accidents. I would like NHTSA enforce the law.

Shows an error on the dashboard: 3rd Row, Right Malfunction Consult Workshop

TL* THE CONTACT OWNED A 2019 MERCEDES-BENZ GLS450. THE CONTACT STATED WHILE HIS WIFE WAS DRIVING 25 MPH, THE VEHICLE CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THE DRIVER AND FRONT PASSENGER SUSTAINED INJURIES TO THE HEAD HOWEVER, MEDICAL ATTENTION WAS NOT SOUGHT. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT AUTO BODY SHOP. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 15,000. THE INSURANCE COMPANY DEEMED THE VEHICLE A TOTAL LOSS.

The front vehicle hood keep saying it open but is lock keep getting a message saying is open I am afraid is might come out lock and cause me to an accident

Vehicle was damaged by a school bus hitting the rear passenger corner. It damaged the rear tail light, brake light, turn signal and backup warning sensors. Parts to repair the vehicle are not available for the past 4 months. I called multiple times and the dealer cannot provide a date when the parts will be available. The total cost of repairs is $3200.00. To avoid paying rental car fees that the school would have to pay, I’m driving a unrepaired car. The cost to rent a car would exceed the cost to repair the vehicle by 3-4 times the total repair cost. It is a law that car manufacturers have parts available to repair vehicles damaged by accidents. I would like NHTSA enforce the law.

At first, the parking brake assist would appear when vehicle was put into park or when starting. We would have to release the parking brake each time. Then, the parking brake assist light would not go on, but the parking brake assist would engage and or be sticking while driving causing a burning smell and damage to the rear braking system including brake pads and calipers. The independent repair professional described this as being a very premature issue for this vehicle considering the age and mileage. The electronic parking brake actuators electric motors malfunctioned and failed causing resistance on the calipers. The car was undrivable and required us to obtain a rental car for several days.

MERCEDES BENZ HAS GROSSLY MIS-REPRESENTED THE ACTIVE BRAKE SYSTEM FEATURE. THE OWNERS MANUAL LEAVES OUT A KEY ELEMENT, WHICH IS THAT THE DRIVERS FOOT NEEDS TO BE OFF THE PEDAL FOR THE FEATURE TO ACTIVATE. I.E. THE FEATURE WILL ONLY WORK WHEN THE DRIVER IS NOT PRESSING THE ACCELERATOR. THIS IS A CRITICAL FEATURE AND ONE THEY SHOULDN'T OMIT. I EXPECT THE THE AUTO BRAKE TO COME INTO EFFECT WHEN I'M APPROACHING A CAR IN FRONT OF ME AT A A PACE THAT WILL LEAD TO A COLLISION. BUT IT DOESN'T WORK THAT WAY. FOLLOWING IS WHAT THE OWNERS MANUAL SAYS (NOTE THAT IT DOESN'T SAY ANYTHING ABOUT THE FOOT OFF THE ACCELERATION). "ACTIVE BRAKE ASSIST CAN HELP YOU TO MINIMIZE THE RISK OF A COLLISION WITH THE VEHICLE TRAVELING IN FRONT OR REDUCE THE EFFECTS OF SUCH A COLLISION. IF ACTIVE BRAKE ASSIST DETECTS THAT THERE IS A RISK OF COLLISION, YOU WILL BE WARNED VISUALLY AND ACOUSTICALLY. IF YOU DO NOT REACT TO THE VISUAL AND AUDIBLE COLLISION WARNING, AUTONOMOUS BRAKING CAN BE INITIATED IN CRITICAL SITUATIONS. IF YOU APPLY THE BRAKE YOURSELF IN A CRITICAL SITUATION, ADAPTIVE BRAKE ASSIST SUPPORTS YOU WITH SITUATION DEPENDENT BRAKING ASSISTANCE"

I have been showing an error "Active Curve System Malfunction" intermittently since I bought this vehicle from Mercedes dealership, and I've started seeing oil leak from reservoir. I've seen this is a recall from 2013 to 2017 model, but I'm unable to see this as a recall on 2019 model.

Failure of driver side front axle CV assembly. Part #166-330-33-00 with 36,000 miles on the vehicle Noise was heard when driving, pulled over heard noise as moved car forward and made left turn. Car was towed to Highway Tire and Auto near our house on a Saturday morning. Car test driven on their lot and immediately identified as CV axle. Part was only available from Mercedes dealership, yet all the other axles ( non driver side) were available from several parts distributors. Seemed odd maybe indicating a lot of these were being replaced?? This axle failure while driving at highway speeds could have resulted in wheel lock up causing serious accident and injury. When contacting Mercedes they seemed more interested in telling me it wasn’t covered under warranty, and there was nothing they could do about it since I didn’t have the repair done at their shops…. I asked them if they thought it was normal for an axle to go out at 36,000 miles and they said no. I asked them if they thought it was concerning and potential safety issue. And they never gave me an answer. After about 20 phone calls and 4 emails was finally able to escalate it to Mercedes Corporate office and a lady there Andrea, indicated she was executive referral manager and she would check with their engineers. She called back next day and said since I didn’t get it repaired at Mercedes, and since last time it was in a Mercedes shop was 15 months earlier there was nothing they could do about it. She said they might have found leaking fluid etc and could have fixed it. I told her I personally saw it up on the lift and there was zero leaking fluid or indications of wear on the outside. The car had also just recently gotten new tires and passed state of NC vehicle inspection. She said she was sorry but best she could do was offer $400 credit toward a future service at any Mercedes dealership. I think this has potential for serious parts defect and consideration for safety recall

When I attempt to shift from park to to drive or reverse or even neutral the car wont respond. this has happened a couple of times in the last two months. I press on the brake in order to shift and it wont respond to any commands . I then have no choice but to turn off the car and then turn it back on. that usually works. this is unsafe if i was at an open parking lot or even on the street doing a U-turn and I don't turn right then having to reverse and the car doesn't respond. very scary stuff.

Failure of driver side front axle CV assembly. Part #166-330-33-00 with 36,000 miles on the vehicle Noise was heard when driving, pulled over heard noise as moved car forward and made left turn. Car was towed to Highway Tire and Auto near our house on a Saturday morning. Car test driven on their lot and immediately identified as CV axle. Part was only available from Mercedes dealership, yet all the other axles ( non driver side) were available from several parts distributors. Seemed odd maybe indicating a lot of these were being replaced?? This axle failure while driving at highway speeds could have resulted in wheel lock up causing serious accident and injury. When contacting Mercedes they seemed more interested in telling me it wasn’t covered under warranty, and there was nothing they could do about it since I didn’t have the repair done at their shops…. I asked them if they thought it was normal for an axle to go out at 36,000 miles and they said no. I asked them if they thought it was concerning and potential safety issue. And they never gave me an answer. After about 20 phone calls and 4 emails was finally able to escalate it to Mercedes Corporate office and a lady there Andrea, indicated she was executive referral manager and she would check with their engineers. She called back next day and said since I didn’t get it repaired at Mercedes, and since last time it was in a Mercedes shop was 15 months earlier there was nothing they could do about it. She said they might have found leaking fluid etc and could have fixed it. I told her I personally saw it up on the lift and there was zero leaking fluid or indications of wear on the outside. The car had also just recently gotten new tires and passed state of NC vehicle inspection. She said she was sorry but best she could do was offer $400 credit toward a future service at any Mercedes dealership. I think this has potential for serious parts defect and consideration for safety recall

The contact owns a 2019 Mercedes-Benz GLS450 equipped with Pirelli Tires, Tire Line: Scorpion Verde, Tire Size: 275/50/R20, DOT Number: UNFJN542. The contact stated that the driver's side front and rear tires were leaking air from the inner sidewall. The driver's side front and rear tires were replaced at a tire dealer but the failure recurred with the passenger's side rear tire and the tread separated. The tire dealer replaced the passenger's side rear tire. The manufacturer was made aware of the failure. The failure mileage was 34,000. Vin was not available. Consumer stated all 3 tire blew while driving on the highway, tires were bought Jan. 2022.

TL* THE CONTACT OWNED A 2019 MERCEDES-BENZ GLS450. THE CONTACT STATED WHILE HIS WIFE WAS DRIVING 25 MPH, THE VEHICLE CRASHED INTO ANOTHER VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THE DRIVER AND FRONT PASSENGER SUSTAINED INJURIES TO THE HEAD HOWEVER, MEDICAL ATTENTION WAS NOT SOUGHT. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT AUTO BODY SHOP. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 15,000. THE INSURANCE COMPANY DEEMED THE VEHICLE A TOTAL LOSS.