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I have a e220 w212 2014 and recently I ended up with a faulty dpf so got it replacement however 2 days after replacement I noted a new fault which I been informed is likely linked to the initial fault. I got 2 error codes on diagnostic,
1- POOAF72- Boost pressure control "A" has a malfunction. The actuator does not close.
2- P029900- The boost pressure of turbocharger 1 is too low
initially on starting the vehicle at present there is a engine management light present but it works fine upto about 10-15 mins into the journey when the limp mode kicks in and I feel the difference in the drive- limited power.
I would really appreciate any input specially if someone has the similar problem and guide me.
thank you for taking your time out and read this thread
Will let experts chime in but I imagine its because the turbo is acting up or fubared which likely caused the DPF to get clogged up to begin with (not sure of how many miles on it). Replacing DPF fixed that part but the turbo is still acting up.
The experts will know exactly what the codes usually represent.
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