The 2011 Mercedes S400 Hybrid has been the subject of several serious recalls. NHTSA bulletin 12V557000, issued recalls S-models for a faulty fuel filter flanges that may crack when exposed to high operating temperatures or extreme heat. The flaw is caused by the molded design of the flange. Under pressure the S400's fuel filter may leak oil when damaged and cause fire or vehicle combustion if exposed to an external ignition source. Over 5,000 vehicles were affected and the notice calls for the replacement of the S400's fuel filter at a local dealership free of charge. The S400 was also recalled for a faulty power electronics control module and charging system errors that generate a no start due to insufficient voltage.
Amjiba
November 27, 2020
Electric battery converter goes out you'll be looking at $10,000 for a new one. Not worth buying the car over 80,000 miles on the vehicle.
Robert B
July 16, 2020
There are not any specific issues with the 2011 mercedes s400, however due to the age of the vehicle it is likely there will be issues with the engine or transmission. Rust or damaged metal could have set in over time. Likewise the brake lines and other fluid lines should be checked for dry rot and leaks. Brake pads will likely need to be replaced and tires should be checked for age and rot. The oil and oil pump should be checked for rot on the lines, and cracks in the pan. There may also be dead or damaged wires and blown fuse causing electrical problems throughout the vehicle.
Tommy L. Gardner
July 21, 2022
My problem is no start problem related to the Hybrid system.
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