San1

My E60 530d has done 85k miles and the DPF has 50k left. Today the Idrive gave a DPF failure message. I know the DFP regenerates itself so I took the car on the motorway and done 75mph in 4th gear, just over 3000rpm for at least 30 mins. I have not noticed the car in the regeneration mode before so I do not know if it had engaged. This trip did not clear the message.

Using Proscan and a ELM232 scanner I checked the engine for error codes. Two came up error codes as follows:
P0193 - fuel Rail Pressure Sensor High Input
P0237 - Turbo Charger Boost Sensor Circuit Low

No loss of power or any other noticeable change. Turbo kicks in as normal.

One thing I noticed when I plugged in my top end tuning box (ChipExpress £399+) the turbo did not engage so I removed it. This error appeared a few days after. I am going to try making sure the coolant temperate is above 75 degrees using Proscan before attempting another regeneration. I also know the exhaust temp must before over 240 degrees but I have no option to check this in Proscan or other method.

1. If I can't get the error to clear how difficult is it to remove, wash and dry the DFP from my car? People have done this before on the web with success.

2. I have a bottle of CATACLEAN. Will this help clear the crap out? or should I try something like RedeX?

3. Will the updated ELM327 allow the reporting of exhaust temp?

Any help would be appreciated.

mmitev

https://5series.net/forums/topic/947...e-for-the-dpf/

and I did not understand the sequence of events around that tuning box and what it has to do with the DPF?

San1

Running the tuning box increases emissions. On full setting the Idrive reports increased emissions. this may have been pushing more soot into the DPF.