Hello everyone, My 635d has a particle filter problem in the screen, but after further drive the message has disappeared again. So the “reset” that it shuts down from the runtime, it actually can not be, because I had already registered a “new” about 2 years ago, with Deep OBD software. But nothing was exchanged, it is a year 2010 with 235k kilometers. I next changed both thermostats and deleted all errors, am circa 40-50 km with 120-150 km/h. Whether he automatically requested a regeneration while driving, I can’t say, could not see anything with Carly there. I tried to request a regeneration in the DPF menu of Carly, but always the message “failed”. The ash and soot values there are to my knowledge only calculated and do not really say anything, it was 60 and 0.95. When I stood in front of the garage, in idle, and thought the topic was done, appeared the Error again on the screen, but has disappeared again after about 1 minute. Afterwards I have read out the error memory: – 00480A Particle filter system – 00410 Exhaust gas backpressure sensor before particle filter, signal Have deleted the errors again and read out the live data: – Cooling water temperature: 93 degrees – Absolute pressure in the particle filter 967.890 hPa – Differential pressure over the particle filter (raw value): 40.876 hPa – Differential pressure over the particle filter: 40.876 hPa – Exhaust gas backdruc k before particle filters – corrected: 977.891 hPa – exhaust pressure before particle filters: 988.891 hPa Can I still try anything before I renew the particle filter + sensors? Have the PISTON PREMIUM app if you can do more with it than with Carly. And as far as the particle filter is concerned: Does it recommend to expand the old one here and send in for free burning or buy a new one (from the accessory)? At the price it comes about to the same thing (350-400 euros), without working hours.