NealWhat? Jet wash it out? :rofl. My friend, you need to regenerate it by burning the soot particles away from the filter. Either go for a very long drive and get the exhaust hot enough to do this or get the dealer/specialist to take it out and regenerate it manually.
Thanks Neal :thumbsupNish, the DPF light will display when regeneration is needed. I would recommend you do at least 1/2 hr long drives once a month at the minimum :thumbsup
how can it be regerated manually any ideas regards geoffWhat? Jet wash it out? :rofl. My friend, you need to regenerate it by burning the soot particles away from the filter. Either go for a very long drive and get the exhaust hot enough to do this or get the dealer/specialist to take it out and regenerate it manually.
DPF regeneration needs steady cruising at operating temperature about 30 mins over 65mph.
i dont think thats strictly true
my 535d was running cool
i replaced the main stat and the temp went up from 78 degreees to 88 degrees
it was no coincidence that it did a regen within 30 miles and steady driving following the replacement
the following week i replaced the EGR stat and it now runs at 91 degrees ,,,up from 88
ive been out today and it regenerated AGAIN within 15 miles max
its now done 2 regens since replacing the stats and approx 400 miles
Not necessarily. If it comes on intermittently, then you have partial soot blockage which can be eliminated by active regeneration. What you are referring to is the DPF on permanently and sometimes EML light on at the same time which will need attention by the dealer.If the regen fails to burn off the soot build up and a second level of blockage is reached, the DPF light comes on. Once on, the light can only be reset with specialist kit and the DPF will need to be removed and cleaned/ replaced/ swapped for a DPF replacement pipe.
When the soot loading in the DPF reaches a pre-set limit (normally around 45%), the ECU will make minor adjustments to the fuel injection timing system which will in turn increase the exhaust temperatures and help initiate the DPF regeneration process.What is an active regeneration?