Quote:
Originally Posted by smyles
A clogged DPF would show significant pre/post pressure variance.
There's a test procedure in ISTA to evaluate DPF back pressure.
Bimmerlink also can read DPF status and values - not as extensively as ISTA, but still, enough to assess DPF health.
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Yes - we are seeing the pressure issues. We tried to clean it, and it went back to CEL. They'll read the codes one more time before the actual work. I'm told the labor to get the DPF is the most costly b/c of where it's located. The part is under $1000.
I spoke extensively to a DPF cleaning person, and after I showed them what I had done they said not much more and likely that you got a lot of ash from short trips and it's in there like concrete. We won't know unless we remove, but that is expensive in itself.