My X5 40D keeps bring up a check engine light and the codes are:
49A6Glow Plug Controller. New GP controller.
4CAEEGR controller position sensor.
40D4 EGR controller Position Sensor.
4C9FExhaust-gas recirculation valve, plausibility
4C9EExhaust-gas recirculation valve, plausibility
40B4EGR Valve position control.
Apart from the first one everything else is EGR related. I removed the EGR valve (10 min job) and it wasn't sticking, a small amount of carbon but less than I imagined. My question is do these fail otherwise? Is there a way of checking them, specifically the operation of the stepper motor?
Hi, having very similar issues on my 40D. I changed the egr and reset the adaptations but still no change. Did you get this sorted in the end?
BMW N57 EGR Valve.
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Hi, having very similar issues on my 40D. I changed the egr and reset the adaptations but still no change. Did you get this sorted in the end?