Engine And Engine Cooling Problems of Mercedes Benz GL550

The contact owns a 2014 mercedes-benz Gl550. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with leaky exhaust valves. The dealer determined that the exhaust valves needed to be replaced. The vehicle was taken to an independent mechanic, where a similar assessment was made. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under TSB number: 10233794. The manufacturer referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 104,000.

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Leaky exhaust valves.

See attached document for complaint.

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My 2015 Gl550 has 90k miles on it and is city driven, on 09/11/2023 when I was trying to pull out onto a main rd my SUV hesitated and the check engine light came on, luckily traffic wasn’t heavy at the time so I wasn’t in any accidents. I called and was able to get my SUV into my local mercedes dealership for an inspection. When the SUV was dropped off the check engine light had gone off but when the service center pulled up the codes it showed both turbos were bad and have to be replaced. This isn’t something that should happen to a vehicle that is regularly serviced only at mercedes service centers, isn’t 10years old yet, never wrecked, and has less then 100k miles on it. If this had happened with heavy traffic or any other situation it could have caused a serious wreck. My SUV is currently at the dealership having both turbochargers replaced at a cost of $12,000 out of pocket. I feel that mercedes needs to look into the turbochargers used in their vehicles.

Tapping noise developed in the engine, after dealership inspection using borescope, scored cylinder walls were found, resulting to engine replacement. Please see: lena jamil, et al. V. Mercedes-benz USA, llc (case 2:22-cv-08130-fla-afm).

As I was driving down the freeway the whole vehicle caught on fire and we got out of the car and within 2-3 minutes while car was burned to ashes.

Tl the contact owns a 2009 mercedes-benz Gl550. The contact stated that the vehicle experienced a complete loss of engine power without warning. The vehicle was towed to mercedes-benz of daytona beach (1188 n tomoka farms rd, daytona beach, FL) for diagnostic testing, but the results were not disclosed. The manufacturer was notified of the failure. The failure mileage was 106,000.

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Upon receipt of vehicle, when the weather was nice, a rattle in the engine compartment appeared to take place intermittently. Upon diagnosis by a dealership, intermittent was confirmed to take place on a cold start, and not intermittently. Upon further research, it was found the rattle is related to a manufacturer's defect with the timing chain tensioner(s) and their interaction with the valves. My safety was put at risk substantially. I live in the cold upper midwest. Every start of the vehicle is a cold start, and if I risk damaging my engine at any given hour, during the dead of winter, with little to no available funds, I am at risk of hypothermia, starvation, even death. The problem, as noted in paragraph one has been reproduced by a dealer. The vehicle has not been inspected by the manufacturer in full, but the issue is known by daimler since 2013 for certain. No warning lamps or messages are associated with the issue. The only symptom is the rattle in the engine compartment, and when appropriate tension with the timing chain is obtained, the rattle immediately goes away.