Walker Products Manifold Absolute Pressure Sensors (Map Sensor) Measure Manifold Pressures Through Changing Voltage And Sends This Information To The Onboard Computer. The Computer Uses This And Other Inputs To Calculate The Correct Amount Of Fuel Delivered. Symptoms Of Failure Include Poor Starting, Detonation, A Check Engine Light, And Or No Start Conditions. Sensors Are Non-Serviceable And Therefore Must Be Replaced When Non-Functional. Walker Products Began Supplying The Fuel System And Engine Management Needs Of The Automotive Industry Since 1946. We Continue Our Commitment To Supplying Products Manufactured To Meet Or Exceed Oem Standards And Specifications With The Highest Quality Products. 1998-2018 Mercedes-Benz C230,Mercedes-Benz C240,Mercedes-Benz C280,Mercedes-Benz C300,Mercedes-Benz C350,Mercedes-Benz C63 Amg,Mercedes-Benz Cl500,Mercedes-Benz Cl55 Amg,Mercedes-Benz Cl550,Mercedes-Benz Cl600,Mercedes-Benz Cl63 Amg,Mercedes-Benz Cl65 Amg,Mercedes-Benz Clk320,Mercedes-Benz Clk350,Mercedes-Benz Clk500,Mercedes-Benz Clk55 Amg,Mercedes-Benz Clk550,Mercedes-Benz Clk63 Amg,Mercedes-Benz Cls500,Mercedes-Benz Cls550,Mercedes-Benz Cls63 Amg,Chrysler Crossfire,Mercedes-Benz E250,Mercedes-Benz E320,Mercedes-Benz E350,Mercedes-Benz E430,Mercedes-Benz E500,Mercedes-Benz E55 Amg,Mercedes-Benz E550,Mercedes-Benz E63 Amg,Mercedes-Benz G500,Mercedes-Benz G55 Amg,Mercedes-Benz G550,Mercedes-Benz G65 Amg,Mercedes-Benz Gl320,Mercedes-Benz Gl350,Mercedes-Benz Gl450,Mercedes-Benz Gl550,Mercedes-Benz Gle300D,Mercedes-Benz Glk250,Mercedes-Benz Glk350,Mercedes-Benz Gls350D,Jeep Liberty,Mercedes-Benz Maybach S600,Mercedes-Benz Maybach S650,Mercedes-Benz Ml250,Mercedes-Benz Ml320,Mercedes-Benz Ml350,Mercedes-Benz Ml430,Mercedes-Benz Ml450,Mercedes-Benz Ml500,Mercedes-Benz Ml550,Mercedes-Benz Ml63 Amg,Mercedes-Benz R350,Mercedes-Benz R500,Mercedes-Benz R63 Amg,Mercedes-Benz S350,Mercedes-Benz S400,Mercedes-Benz S430,Mercedes-Benz S500,Mercedes-Benz S55 Amg,Mercedes-Benz S550,Honda S600,Mercedes-Benz S63 Amg,Mercedes-Benz S65 Amg,Mercedes-Benz Sl500,Mercedes-Benz Sl550,Mercedes-Benz Sl63 Amg,Mercedes-Benz Sl65 Amg,Mercedes-Benz Slk250,Mercedes-Benz Slk280,Mercedes-Benz Slk300,Mercedes-Benz Slk320,Mercedes-Benz Slk350,Mercedes-Benz Slk55 Amg,Mercedes-Benz Sls Amg,Dodge Sprinter 2500,Dodge Sprinter 3500,