This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
I did some research on Mercedes 3.0L diesel motors and there seems to be an issue with the seal failing about 50,000 miles causing the motor to leak oil and the seal as well as the oil cooler need to be replaced. It is such a common problem on the 3.0L diesel engines that when you call any repair shop the first thing they ask is if the car is a diesel. Also the seal replacement is all over the Mercedes blogs saying the same issue on the 3.0L diesels. Thought it might be something to look into as it is an engine seal problem and is occurring consistently in all the 3.0L diesels in the S class, E class, ml class, G class. All models that Mercedes sold the 3.0L engine in the us.
The contact owns a 2012 Mercedes Benz S350. While driving approximately 65 mph, the vehicle decelerated without warning. The contact then coasted over to the emergency lane and there were no warning lights illuminated. The vehicle restarted; however, the failure recurred multiple times. The vehicle was taken to the dealer for diagnostic testing. The technician diagnosed that the side charge air hose into the throttle actuator was torn and caused the loss of hose pressure. Both the left and right hose needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 50,000.
- Anaheim, CA, USA
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- New York, NY, USA