Intermittent O2 Sensor Issues Affect Certain European and Japanese Vehicles

Owners of certain European and Japanese vehicles, including Mercedes-Benz, BMW, Audi, Porsche, VW, Volvo, Jaguar, Lexus, Toyota, and Honda, may experience intermittent O2 sensor codes such as P0151 and P0157. These codes can appear sporadically, causing frustration for vehicle owners.

A 2005 Mercedes-Benz E500 with over 222,000 miles on the odometer has been reported to have this issue. The cause of the problem should be determined by a technician to avoid replacing unnecessary parts. The National Highway Traffic Safety Administration has not issued a recall related to this specific issue.

However, vehicle owners are advised to have their vehicles inspected if they receive these codes. According to the codes' definitions, P0151 refers to a fault in the O2 sensor heater circuit, and P0157 indicates a fault in the O2 sensor heater circuit as well. Vehicle owners should consult their owner's manual or contact the manufacturer for more information.