Exhaust filter differential pressure sensor

[jadow]

I have a 520M Sport and have just had a warning flash up that the car should be run at moderate speed only. Having looked for any alerts in the vehicle status/check and found none I contacted BMW assist and was told it would probably not be an issue, but get it checked. The check indicates that the exhaust back pressure sensor is outside of tolerance and the codes for low exhaust particulate filter differential pressure undershot, the exhaust oxygen sensor implausibly high and charge air pressure control deviation.

This is the 2nd occasion the codes have appeared, but the 1st incident for the moderate speed warning. The local agent checked the first issue and reported a glitch in the software. Any thoughts as to what this might be before I take it back to the agent for another high priced inspection.

[E-bmw]

As you report the same symptoms it absolutely could be the same again, could be a DPF blocked.