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BMW 645Ci Replacement Air Mass Meter Information


One of the most critical elements of the engine performance and fuel economy of your BMW 645Ci is the air/fuel mixture being sent through the fuel injectors into the engine cylinders. Ideally, an AFR (air-fuel ratio) of 14.7 to one is delivered to the combustion chambers, a mixture that is neither lean nor rich and, in automotive parlance, known as the stoichiometric mixture. This is the ratio most likely to promote complete combustion for highest performance, lowest emissions and best economy.

Your car's air mass meter is a sensor tied into the main engine computer that provides data regarding the specific density of the air. As air density changes, the computer must take the current air density information and regulate the amount of fuel added to maintain the stoichiometric mixture. A faulty air mass meter must be replaced to maintain top performance and economy. PartsGeek.com has the OEM unit.


BMW 645Ci Air Mass Meter They are available for the following BMW 645Ci years: 2005, 2004, 05, 04. This part is also sometimes called BMW 645Ci Air Flow Meters. We stock air mass meter parts for most BMW models including 325i, X5, 328i, 528i, 540i, 740iL, X3, 530i, 318i, 525i, 330Ci, 325Ci, 330i, 335d, 323i, 325xi, 740i, Z3, 745Li, 325e, 330xi, Z4, 535i, 328xi, 750iL, M3, M5, 325is, 745i, 328i xDrive, 318ti, 318is, 750Li, 528e, 323Ci, 545i, 633CSi, 328is, 635CSi and 735i.

We stock these Air Mass Meter brands for the BMW 645Ci: Bosch, Standard Motor Products, A1 Cardone, Delphi and NGK.


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