2018 MERCEDES-MAYBACH S 560 4MATIC

My 2018 S560 Mercedes occasionally misfires upon acceleration. This has happened at six times over the past three years. When this happens, the engine loses power, starts to shake, and the check engine light comes on. This happened when I was trying to pass a car on US 301 a week ago nearly causing a head on collision as I tried to get back into the right lane. The problem occurs without any warning. This first happened at 64,242 miles, then at 104833, next 108599, then 119,012, then 121,726, and finally at 126580 (my current mileage). Each time I have gone to a Mercedes mechanic. They have replaced the coils three times and the spark plugs twice. They now tell me the problem is due to the walls of the cylinders delaminating and scratched/scoring and the engine needs replaced (come on, 126,000 miles). They have checked the compression and say it is low across all eight cylinders. The vehicle has been inspected by a Mercedes dealership and by other certified Mercedes mechanics. They gave me pictures of the cylinders (attached). Here are their notes: Cylinder walls in #1 look delaminated, also scratched, no signs of oil consumption on spark plug, carbon is burnt off #1 piston in center. Preformed compression test on cylinder 1 and 2, #1 dry 140, wet 170, #2 dry 110, wet 170. Just these 2 cylinders are showing leakage past rings, luckily no oil consumption. Compression spec's13 to 17 Bar{ 188 psi to 246 psi } Cylinder #1 dry 160psi, wet 190 psi, Cyl #2 dry 150psi wet 185psi, #3 160psi dry, wet 190psi, Cyl #4 160psi dry, wet 190 psi, Cyl #5 155psi dry, wet 190psi, Cyl #6 155 dry, wet 190, Cyl #7 155 psi dry, wet 180psi, Cyl #8 160psi dry, wet 185psi. All wet and dry actual compression are all too low, likely from the cylinder wall conditions. Being compression is low across all cylinders this is causing misfires at random times across all cylinders.

1. The leather cover for the dashboard has peeled up on the passenger side. The vehicle is parked inside a covered garage while it is not being driven since it was purchased in 2021. 2. I am worried about the safety airbag restraints in the dashboard might not be working. 3. The vehicle was taken to the Mercedes Benz dealership and they assessed that the ENTIRE dashboard had to be replaced. 4. It has only been inspected by the dealership. 5. There were not any warning signs from the vehicle intelligence and monitoring systems. The problem first appeared at the beginning of November 2024.

The engine failed while my friend was driving. The car is available for inspection. My friend almost got into a car accident because the car started shaking and the steering wheel closed up before the engine completely failed. Additionally, the airbags did not go off. It could've been a fatal accident because he was driving on the highway. The problem was confirmed by an independent service center. The vehicle has been inspected by a certified mechanic. The car has had problems since I bought it. The tire pressure would always go down. The steering wheel and car would shake at times, and the tires had to be replaced two times within two years.

Driving on interstate 95 in South Carolina in the high speed lane Saturday December 2 2023 late morning. Adaptive cruise control, lane keep assist, self driving modes engaged. No traffic in front, large semi truck next to passenger side about equal to side mirror, I believe it was advancing. Car sounds collision warning beep and executes full emergency barking with seat belt tensioners emergency retraction. The system quickly releases the brakes which may have been the result of me pressing the gas pedal, I am not sure as this all happened in fractions of seconds. I disengaged all self driving and distronic systems including parking sensors and continued on the journey.