Mercedes Air Mass Sensor - Magneti Marelli 1110940148

Product Information

Mass air flow sensors are tasked with measuring the amount of air entering the engine via the intake. This mass air flow sensor is known as a hot film sensor which will suffer performance deterioration over time. The sensor is designed to be self cleaning. A faulty or non functioning mass air flow sensor will cause a check engine light and in some cases cause a limp mode. The best way to diagnose a faulty mass air flow sensor is to disconnect it and see if engine idle or performance improves.

• Check engine light illumniated with OBD codes related to MAF sensor faults
• Engine has rough idle and/or stalls
• Short term fuel trim is rich at idle or lean under load
• Constantly runs rich or lean

About Magneti Marelli

For over 100 years Magneti Marelli has excelled at the design and manufacture of hi-tech automotive systems including acting as an OEM (original equipment manufacturer) of lighting systems for all major car manufacturers worldwide including Audi, BMW, Honda, Land Rover, Mercedes, Toyota and Volvo. The lighting division of Magneti Marelli is located in Reutlingen, Germany where they design the lighting as well as the manufacturing process. Then there are 16 manufacturing factories globally where they manufacture headlights, turn signals, light bulb signals, and tail lights. Magneti Marelli brand OE lighting equipment may be packaged underneath Marelli's brand Automotive Lighting after to recent merger with Calsonic Kansei in 2019, and restructuring of the branding to suit new OE technological progress.