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Discussion Starter #1
Happened tonight just as I pulled up outside house after work - had to sod off on a 20 min drive to complete it, last one made me late for work:D, one before that was on pulling in at golf club (aborted) What an inconsiderate system, there should be a manual override.
 

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On the fence with this one lol... I argue both ways, engine on to complete or off to interrupt.. Either way its a system that was rushed ahead of EU laws and needs to be deleted from the ecu to stop it happening.......
 

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So where do you connect such a traffic light?
I could do with just one led shining when the regen is ongoing. Is there a regen-relay were I can steal some juice for a led so it shines up when it switches on?
Conecting a force-regen-button is probably much more complicated but seems to be what the thread starter wants.
 
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Seen lights hooked up to drivers wing mirror heating element wiring as element is turned on when regening.
 

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Discussion Starter #10
I thought the regen continued even when you parked up and left the car?
The fan continues on for about 5 minutes after turning engine off but that's just to cool everything down again I believe. I've heard it's not wise to abort the regeneration process as it dumps fuel in your engine. As I do mainly urban driving I like to let it complete and it works very well now I'v got my head round the process thanks to this forum. I've checked my regens with planet and they occur about every 350-400 miles so getting used it now.
 

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I always just abort it. really no problems, it'll just continue on your next drive after engine has heated up. so as long as you drive some long trips occasionally you'll be just fine.
 

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thanks all im having big problems with mine. it aborts im sure

i have a decent trip this weekend and a 260 mile drive next weekend which should sort it out

then to normal 200-300 miles is fine :D
 

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Ok. I'm gonna ask a daft question and will accept the incoming!!


But

How do you know when the car is doing the regen? Does it display it? Only saying as i have 407 2.7 HDi. I've never a regen message or anything? I presume it just "happens" whilst driving when needed?

I fink i need more edumacation on it?!
 

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Ok. I'm gonna ask a daft question and will accept the incoming!!


But

How do you know when the car is doing the regen? Does it display it? Only saying as i have 407 2.7 HDi. I've never a regen message or anything? I presume it just "happens" whilst driving when needed?

I fink i need more edumacation on it?!
If you want my honest opinion bearing in mind i'm on my second 407 since 2007.............................NOT A FECKIN CLUE, never been able to tell on either of my 2.0's. People say the drivers mirror heats up (How do you know this i tend to have my hands on the steering wheel not the mirror)
 

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Haha!! I see!! I have an auto box so i suppose i could hang onto the mirror whilst driving?

Only joking!!!

As i know i have to do the regens, i just play it safe and about once in a while do half hour drive minimum on a local A road in 3rd gear @70. I hoping that the drive plus extra exhaust temp at higher revs will burn some of the soot. If the car feels slighlty sluggish then i do it. No fault warnings but feels it. Once 3rd gear trip done, car runs sweet as a nut! I'm probably being over cautious there.

That being said, i do go see my bro and family every 6-8 weeks and they are an hour or so away. Again journey is on fast A road so i think a regen defo happens then anyway.
And getting to work is 10 mins on motorway so maybe that helps.
 
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Ok. I'm gonna ask a daft question and will accept the incoming!!


But

How do you know when the car is doing the regen? Does it display it? Only saying as i have 407 2.7 HDi. I've never a regen message or anything? I presume it just "happens" whilst driving when needed?

I fink i need more edumacation on it?!
like trem says I didnt have a clue either I travelled mainly on dual carriageways @ 60mph in 6th never got a regen warning etc etc or anything so i was puddled but after Gibbo hooked her up to Planet we could see it was regenerating etc. After talking to a couple of diesel specialists they reckoned it would just do it whilst driving and you shouldnt notice etc and my 20 mile round trip to work was prob just enough to not cause any issues
 

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This is from the DW12B docs...

The filter can regenerate without assistance if the exhaust gas is hot enough. However, the car can decide to provide assistance if the filter starts to get blocked, and it's these assisted regens that you may notice.

During an assisted regen the EGR is closed, there is one or two post-injections of diesel, boost pressure is limited, and the engine is loaded via the alternator by activating the heated rear screen and the fan (and, I believe, the glow plugs).

The system attempts to calculate the amount of soot trapped in the particle filter.
It estimates driving conditions based on torque and speed and uses this to keep track (grams per minute) of the amount of soot it thinks has accumulated.

The differential pressure sensors are used only as a safety check. The filter is blocked when a low exhaust gas flow causes a high pressure difference, and this can also trigger an assisted regen.

In motorway conditions the estimated distance between regens is 1500km (930 miles). Apparently. :rolleyes:

When I first got mine I copped a couple of really bad regens where the car was down on power and the MPG plummeted. Of course, it had been on short test drives from the dealer for a couple of months. It had a load of regen fail faults, and it needed new glow plugs to sort these.
After it got this out of its system it's been much better behaved and I haven't noticed a regen for months (and I'm pretty obsessive about MPG).
Diagnostics shows that it regens about every 300 miles, but it obviously isn't using full assistance. My daily commute is 10 miles each way consisting of town, ringroad, then A-road at 50 (25 behind an old person in a small Japanese car more likely than not), 30, national, 40, 50, 30 with lights and queuing, then 40. Plus I do one or two fast motorway runs each month (which is what the car is really for).


I agree that it would be nice to know when it's doing it. The LED on heated mirrors (which are activated with the heated rear screen) is a brilliant idea.

I'd also like a 'piss off, we'll be on the motorway soon' button.
 
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