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Idle Speed & Mixture

IDLE SPEED & CO LEVEL

Application Idle RPM (1) CO Level %
325i, 325iC & 325is 660-740 .2-1.2
525i & 525iT 660-740 .2-1.2
(1) Measured at exhaust manifold. See the appropriate ADJUSTMENTS - 2.5L 6-CYL article for additional information.