2022 MERCEDES-BENZ E 350

Major issue found with engine cylinder head in various models with 2.0 Liter Turbo charged engines (Engine code M260 or M264). Cylinder heads have premature wear at valve seats, causing engine misfires and unsafe driving conditions. (Sudden loss of power, even on freeways.) Mercedes-Benz had improved cylinder head design to mitigate this issue, thus proving that they knew it was their product quality that is causing these unsafe issues. Mercedes-Benz even put out a service bulletin to address these defective cylinder heads. This publication can be found under XENTRY, Topic Number LI01.30-P-072328, Version 8, published 9/26/2023. My contact at Mercedes Dealer informed me that they are seeing a drastic increase in this problem affecting roughly over 25% of the models with these engines. They are beginning to fail at around the same time as the warranty expires. There are numerous stories on the internet concerning this issue, examples can be found in the following links: https://www.facebook.com/groups/mercedesbenzowners/posts/10162557430080937/ https://www.mercedesgleforum.com/threads/cylinder-head-replacement-11-500.4399/ We contacted Mercedes-Benz US Headquarters, they do not believe it is their problem and throws petty money around in attempt to strong-arm owners to shut us down. All we request was for Mercedes-Benz to own up to their quality issues and handle the repairs at their expense. Please help me among all the other owners that this is affecting. Thank you in advance for your assistance in this matter.