Hi i have a problematic bmw 320d n47d20c engine with dpf back pressure sensor problem.
Bmw dpf back pressure sensor.
Old sensor is showing 12mbar pressure with hose disconected i replaced it with new one from hella and is showi.
Sensor abs wheel speed sensor acceleration yaw rate.
I needed to check if it was indeed blocked and the first back pressure reading showed exhaust gas back pressure at 940m b at 2 000 rpm.
300mb is about 4 5 psi.
A good one at idle would be 10mb or less bring revs up to about 2500rpm and less than 100mb flat out under load and 300mb max.
Next we simply tested sensor plausibility which showed a reading of 0 m b with ignition on engine off.
Bmw a dpf sensor for sale bmw a dpf sensor replacement.
Flow sensor lambda nox sensor bumper parking sensor tyre pressure sensor mass air flow meter sensor maf sensor exhaust pressure sensor engine exhaust back pressure sensor wheel speed sensor lateral acceleration sensor a b s.
The car in question is our bmw x5 3 0d when you are at wot the pressure before the dpf peaks at around 480mbar.