Function: The mass airflow sensor located beside the air intake box inside the engine bay. Help to detect the mass of airflow entering the engine. MAF sensors can improve fuel efficiency. No need to use tools to install that take too long or other inefficient. Made of plastic and metal materials, durable and reliable in use. Not easy to rust, corrode or peel. Direct replacement on the engine of the car, easy to install. Product Dimension: Color: Black Material: Metal, Plastic Pin Number: 5 Hole Diameter: 6.7cm / 2.64" Size: 12.4x9.8x7.5cm / 4.88"x3.86"x2.95"(L*W*H) Compatibility: for OPEL MERIVA 1.3 CDTI Z 13 DT 1248CC 51KW MPV 2005-2010 for OPEL MERIVA 1.7 CDTI Z 17 DTH 1686CC 74KW MPV 2003-2010 for VAUXHALL MERIVA Mk I (A) 1.7 CDTI 16V Z 17 DTH 1686CC 74KW MPV 2003-2005 OE Number:0836638Please Attention: This is non-OEM product, accessory ONLY! Please confirm the model, displacement and year of your car before purchasing. Ship Content:1 Pc - Car Mass Air Flow Sensor