Hi all,
As above, when driving my Berlingo (2012 115k) the orange triangle comes on and states particle filter risk of clogging, anything over 3000rpm the engine management light comes on the van fan runs nonstop keeping the engine cool.
I have put a scanner on and it’s reading fault code p242.
Hopefully this week I will top the Eolys up and possibly change the pressure sensor.
Anyone got any other suggestions or is it a case of DPF off and clean? If so does anyone have an idea how long I need to leave to dry ect.
Thanks
P242 risk of clogging
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Paul-R
- Moderating Team
- Posts: 9170
- Joined: 07 May 2009, 16:24
- x 1908
Re: P242 risk of clogging
Could certainly be needing cleaning at that mileage. Probably Eolys as well if it hasn't had a fill up earlier in its life.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
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shtu
- (Donor 2023)
- Posts: 251
- Joined: 09 Dec 2023, 16:19
- x 74
Re: P242 risk of clogging
In very broad terms, from my own experience
Diagnose and replace a faulty DPF pressure sensor. (helped a bit)
Check and refill Eolys if required. (mine was empty)
Check Eolys pump is delivering fluid. (mine wasn't, replaced tank.)
Tell the car it has a new\refilled tank.
Measure backpressure at idle and 3000rpm-ish.
Sigh.
Take off DPF. Soak in cleaning fluid and wash out.
Tell the car it has a new DPF.
On mine, I'm fairly sure some clever dick had told the car it had a refilled Eolys tank without actually refilling it, which killed the pump, and that in turn led to a dpf clog.
However, on these cars the DPF is essentially on a countdown timer, and at c. 100k will demand replacement, even if there's nothing actually wrong with it. At each stage, make the diagnostic checks and see what is going on. There is never any need to guess.
The fan always running suggests yours is constantly trying to regenerate, and failing. Don't be tempted to just do a forced regen, it won't fix any underlying problems.
Removing and washing the DPF isn't a hugely difficult or expensive job, just messy, I found the Wynns cleaning solution was effective. My older posts have information on DPF issues and what I did to fix them, the pressure readings I got, etc.
Diagnose and replace a faulty DPF pressure sensor. (helped a bit)
Check and refill Eolys if required. (mine was empty)
Check Eolys pump is delivering fluid. (mine wasn't, replaced tank.)
Tell the car it has a new\refilled tank.
Measure backpressure at idle and 3000rpm-ish.
Sigh.
Take off DPF. Soak in cleaning fluid and wash out.
Tell the car it has a new DPF.
On mine, I'm fairly sure some clever dick had told the car it had a refilled Eolys tank without actually refilling it, which killed the pump, and that in turn led to a dpf clog.
However, on these cars the DPF is essentially on a countdown timer, and at c. 100k will demand replacement, even if there's nothing actually wrong with it. At each stage, make the diagnostic checks and see what is going on. There is never any need to guess.
The fan always running suggests yours is constantly trying to regenerate, and failing. Don't be tempted to just do a forced regen, it won't fix any underlying problems.
Removing and washing the DPF isn't a hugely difficult or expensive job, just messy, I found the Wynns cleaning solution was effective. My older posts have information on DPF issues and what I did to fix them, the pressure readings I got, etc.