Hi All,

 

Is there any signals when the DPF is full, and active regeneration needed?

Which are the prerequisites of DPF regeneration? For example run the engine (car) on minimum time with minimum RPM etc?

The car notification/signals me when the DPF regeneration is interrupted?

 

Thanks in advance.

 

Passive regeneration = DPF burns off the soot through normal operating temperatures, no intervention needed.

Active regeneration = DPF initiates a regeneration by increasing the engine RPM to heat up the DPF and aid the burning off of the soot.

Forced regeneration = DPF needs to be manually forced to perform a regeneration via dealer software.

 

When required the car will initiate an active regen. The only indication to the driver is the increased idle speed (1,000rpm), slight smell of burning and the running of the engine fans.

 

If an active regen is interrupted or cannot complete (engine turned off, sat in traffic too long etc.) several times then the DPF light on the dash will illuminate. At this point you need to follow the instructions in the manual to allow the car to complete an active regen.

 

If you ignore the DPF light or a fault develops with the DPF or its sensors then the car will drop into limp-home mode and you will need to visit a dealer to have a forced regen carried out.

I have found during my 90k miles driving the car that when in the city traffic if the car is in a high gear, it is telling me to drop down one gear. If I ignore this my DPF light will surely come on forcing me to do a drive up the motorway in 4th gear with the revs above 1800

http://pmmonline.co.uk/technical/diesel-particulate-filters-everything-you-need-know

Hi all.Any advice for my mk2 Superb automatic.I do mostly a short drive daily to my work around 7-8 miles each way.Maybe a longer 40-50 miles weekly.is this enough to the dpf to regenrate.How can i tell when it starts and finished?

Nohing wrong with my car but the last time the fans were still spinning when i turned the engine off and walked away from the car.

19 minutes ago, zoltan said:

Hi all.Any advice for my mk2 Superb automatic.I do mostly a short drive daily to my work around 7-8 miles each way.Maybe a longer 40-50 miles weekly.is this enough to the dpf to regenrate.How can i tell when it starts and finished?

Nohing wrong with my car but the last time the fans were still spinning when i turned the engine off and walked away from the car.

 

I use the VAG DPF app + an OBD II adapter. Makes it very easy to keep an eye on the DPF. 

 

drefaldwyn.

1 hour ago, zoltan said:

Hi all.Any advice for my mk2 Superb automatic.I do mostly a short drive daily to my work around 7-8 miles each way.Maybe a longer 40-50 miles weekly.is this enough to the dpf to regenrate.How can i tell when it starts and finished?

Nohing wrong with my car but the last time the fans were still spinning when i turned the engine off and walked away from the car.

There are two telltale signs in the DSG that it's doing a regen. One is that the idle speed is higher than normal (around 950 rpm instead of 750 rpm), and the other is that it will be a gear lower than normal a lot of the time e.g. it will usually change to 5th at around 50 km/h but during a regen it will stay in 4th at this speed. If you're on the motorway, you will probably not notice either of these things happening.

 

If you're especially concerned about watching for regen activity, then @drefaldwyn's suggestion of VAG DPF is a good idea.

Hi. My car does active regeneration one a week. I use my car to drive to work and back home, 30km per day. So, is it normal that car does active regeneration once a week? 

Superb 1.6 tdi 77kw Greenline 

 

To "@Kizotina" - If you have "Diesel Gate" Software installed - it is normal, but not good at all..

My unfixed CFFB 140bhp with 112000 miles does an active regen approx every 350/450 miles + several passive regens at varying intervals in between. 

 

Drefaldwyn 

Does it means that it's clogged, and how to tell how much? 

Car has 146.000 km. 

 

 

Check the oil ash and soot levels with VCDS or similar. If you've got an Android phone, plenty use the VAG DPF app and OBD dongle.

 

Do you ever get any warning lights? If not, it's unlikely to be clogged.

3 hours ago, langers2k said:

Check the oil ash and soot levels with VCDS or similar. If you've got an Android phone, plenty use the VAG DPF app and OBD dongle.

 

Do you ever get any warning lights? If not, it's unlikely to be clogged.

No warning lights

 

On 02/08/2019 at 19:41, Kizotina said:

My car does active regeneration one a week. I use my car to drive to work and back home, 30km per day. So, is it normal that car does active regeneration once a week? 

 

It is normal behavior on a car with the fix. My 2014 with the 1.6d with 69.000 km does exactly the same if driven that amount per day.

 

22 hours ago, Kizotina said:

Does it means that it's clogged,

 

No, it does not.  It is normal. This is why you have no warning lights. 

 

22 hours ago, langers2k said:

Check the oil ash and soot levels with VCDS or similar. If you've got an Android phone, plenty use the VAG DPF app and OBD dongle.

 

If you cant stop worrying and want to monitor it, then this ^^^^ is good advice.

7 minutes ago, TheRobinK said:

 

It is normal behavior on a car with the fix. My 2014 with the 1.6d with 69.000 km does exactly the same if driven that amount per day.

 

 

No, it does not.  It is normal. This is why you have no warning lights. 

 

 

If you cant stop worrying and want to monitor it, then this ^^^^ is good advice.

Thanks. 

 

the vast majority of my journeys are under 5 miles. I may do 9 miles in one trip once a week.

Very rare to hear the fans running at the end of a trip.

Never seen the dpf light in 6+ years.

 

I have checked it at local garage,DPF is at 36 g. 

 

 

Edited 14 August, 20196 yr by Kizotina

1 hour ago, Kizotina said:

I have checked it at local garage,DPF is at 36 g. 

 

 

Is that soot, ash, or both?

10 hours ago, chimaera said:

Is that soot, ash, or both?

I didn't pay attension, I left car at him and came back after half an hour. He just told me that there is 36 grams of somethig and that 70 grams is max, so its 50% clogged. 

19 minutes ago, Kizotina said:

I didn't pay attension, I left car at him and came back after half an hour. He just told me that there is 36 grams of somethig and that 70 grams is max, so its 50% clogged. 

 

Based on that, it's probably the oil ash volume.

 

Others have suggested the maximum oil ash volume for a similar 1.6l TDi is ~72g so 36g is indeed 50% full. That suggests a DPF lifespan of ~292,000 km or ~181,000 miles which seems reasonable

Edited 15 August, 20196 yr by langers2k

I think the factory should have some sort of display for DPF, the car has the information already, you could fit an Autopolar interface to access it if you were that bothered.

My views exactly "I think the factory should have some sort of display for DPF, the car has the information already, "

I would go one more and have it so that when the car needs a regen it notifies you  then gives you the chance to give it a good drive at reasonable speed instead of switching it of during regens.

As in it notifies you its getting close then you could select through dash to do a regen when its convenient to do so.


Had this problem with a 1.3CDTI Meriva that my wife used to go a 8 mile trip and back every day 
It would trigger just before she arrived at work and would never complete which ended up filling the sump with diesel.😠



 

best solution is an android device and the vag dpf app

11 hours ago, rover220 said:

best solution is an android device and the vag dpf app

 

You will need to check that your engine is supported in the App. 

19 hours ago, DEL80Y said:

My views exactly "I think the factory should have some sort of display for DPF, the car has the information already, "

I would go one more and have it so that when the car needs a regen it notifies you  then gives you the chance to give it a good drive at reasonable speed instead of switching it of during regens.

As in it notifies you its getting close then you could select through dash to do a regen when its convenient to do so.


Had this problem with a 1.3CDTI Meriva that my wife used to go a 8 mile trip and back every day 
It would trigger just before she arrived at work and would never complete which ended up filling the sump with diesel.😠

I'd settle for a green indicator light to advise that a regen is in progress, though I usually pick it up from the DSG's behaviour anyway. It would be nice to have the option of deferring it until the engine is warm and/or you're in a position timewise to drive it until the regen is complete. It bothers me that the car can go straight into regen from cold.