2019 Mercedes-Benz E-Class Reliability Score & Common Problems

Owners of the 2019 Mercedes-Benz E-Class frequently report issues related to the engine, with a notable pattern of rear main seal leaks occurring around 40,000 miles. This problem is described as leading to oil leakage, which could potentially damage the engine. Another common issue involves the Positive Crankcase Ventilation (PCV) valve, indicated by a "P052E" error code. Additionally, there are reports of engine stalling, potentially linked to timing chain problems, and variable timing valve malfunctions that introduce metal shavings into the engine, leading to engine failure. Safety implications include the risk of engine stalling while driving, which could be hazardous. These patterns suggest potential costly repairs and mechanical failures that prospective buyers should consider when evaluating this vehicle.

Owners of the 2019 Mercedes-Benz E-Class frequently report issues with the rearview camera system, particularly while the vehicle is in reverse. Common symptoms include the camera cutting out, displaying distorted images, or failing to display any image at all. These problems typically occur without any warning lights and have been noted at mileages ranging from approximately 10,300 to 24,000 miles. One owner also mentions a mechanical issue where the camera door does not open, preventing the camera from functioning. These failures compromise the vehicle's back over prevention system, posing potential safety risks by obstructing the driver's visibility while reversing.

Owners of the 2019 Mercedes-Benz E-Class frequently report issues with cracked rims, with symptoms including the illumination of the TPMS warning light and low tire pressure notifications. These issues typically arise around 29,000 miles or shortly after purchase, especially for certified pre-owned vehicles. Complaints also highlight the absence of a spare tire, which becomes critical when run-flat tires fail, leading to extended wait times for roadside assistance, particularly in remote areas. One incident involved a crash with an injury reported. Buyers should be aware of the potential high cost of rim replacements and the safety implications of driving with compromised wheel integrity.

Owners report multiple issues with the power train of the 2019 Mercedes-Benz E-Class, primarily involving sudden deceleration and electronic system malfunctions. Complaints frequently mention unexpected warning lights, error messages, and the inability to shift gears, with one report noting the car became stuck in drive. These issues often occur at highway speeds, with one owner describing a sudden drop from 75 mph to 45 mph. Symptoms are noted in vehicles with as few as 7,200 miles, and one owner experienced recurring problems shortly after dealership service. Safety implications include erratic driving conditions and potential immobilization, which could leave drivers stranded.

Owners of the 2019 Mercedes-Benz E-Class report issues with the steering system, with complaints frequently mentioning unexpected steering wheel movements and the power steering becoming disabled. Symptoms include the steering wheel loosening and rapidly moving side to side at freeway speeds, and the automatic steering system following road markings incorrectly, causing the vehicle to veer unexpectedly. Additionally, a complete loss of power steering is reported, accompanied by warning lights and increased steering effort, presenting a hazardous driving condition. These issues are noted to occur during freeway driving, but specific mileage ranges are not consistently mentioned. These reports highlight potential safety risks, including the possibility of loss of vehicle control.

Owners of the 2019 Mercedes-Benz E-Class report issues with the fuel propulsion system, including a high-pressure fuel line that leaks gas, leading to a strong fuel odor in the cabin when the heat is on. This issue is noted as a safety concern due to the potential for fuel leakage. Additionally, one incident involves a crash where the vehicle unexpectedly lurched forward despite being stopped, resulting in a collision with a fence and playground equipment; this suggests a potential problem with unintended acceleration or braking failure. These complaints highlight significant safety risks, particularly with the risk of crashes and exposure to fuel fumes. No specific mileage or timeline patterns are evident from the complaints.

Owners of the 2019 Mercedes-Benz E-Class report issues with the airbag system and seatbelt functionality. One complaint describes a crash where the airbags failed to deploy, and the seatbelts did not restrain the driver or passenger, resulting in an injury when the driver hit the steering wheel. Another complaint notes an intermittent problem where the vehicle does not detect a properly fastened seatbelt, preventing automatic seatbelt adjustments. These issues suggest potential safety implications, particularly in crash scenarios, and highlight concerns about airbag deployment and seatbelt reliability. No specific mileage or timeline patterns emerge from the complaints.