The Mercedes Benz E55 was produced by the German automaker from 1999 to 2006 as one of the Mercedes Benz's E-Class models. It belonged to a range of five-person mid-size luxury four-door executive cars in different engine and body configurations. Although it has impressed the market with features that every executive car should have, these are still common problem areas that car owners should watch out for in a Mercedes Benz E55.
According to consumers' complaints, the common problem area in a Mercedes Benz E55 is its fuel system. Owners of the 2003-2006 Mercedes Benz E55 have complained that after the filling up the vehicle, fuel appeared to be leaking from the gas tank under the back seat and was pooling under it. Other car owners also noticed an extremely strong and alarming fuel odor emanating from the inside of the vehicle. Although it can also be smelled on the right side, this odor usually comes out of the left rear corner of the car. Car owners also noticed that this problem usually happens on a full tank.
Another common problem that the consumers have encountered with the Mercedes Benz E55 is a faulty suspension system. One car owner noticed this a suspension lower control arm issue in a 2004 Mercedes Benz E55 AMG when the vehicle's air strut exploded while driving 70 mph and caused the vehicle to drop to the fender wall without a warning. Another consumer with a 2006 Mercedes Benz E55 experienced the problem while driving 65 mph. After hearing two loud pops, the air bag suspension located on the rear side of the vehicle had blown. As a result, the car collapsed to the ground and almost caused a major crash.
Car owners with the 2003 and 2005 Mercedes Benz E55 also experienced brake problems. One of the complaints stated that the brakes suddenly failed while driving at 35 mph. Another brake issue found in the Mercedes Benz E55 is the sensotronic brake control (SCB) system that becomes default to the basic hydraulic mode. This usually happens when an unacceptable pressure gradient is detected causing the system to switch to the hydraulic function mode as it is designed to do. This problem causes the vehicle to require greater pedal pressure and longer pedal travel before it comes to a stop.