Euro 5 D5 - DPF regen, how often?

[reggit]

Hi all,

Does anyone know a ball park mileage you’d expect the DPF in an early E5 D5 (205bhp) to regenerate? I’ve been chasing what I perceive to be poor mpg since I got the car last summer, with COVID it’s not seen a lot of use (like most others I guess).
Anyway now I’ve been able to get some mileage up, I’m using an ELM327 and a car scanner app to monitor the DPF soot level and see how often it initiates a regeneration cycle. I’ve found that with 85% motorway driving at 75ish (adaptive cruise set to 75 so it’s up and down a bit with traffic) the DPF is full and regenerating at around 330 miles.
Not had one of these ‘modern’ diesels before, so unsure if this is expected mileage to fill it with soot, I have a mild turbo whistle that I can hear with the window down, and am wondering if I’ve a mild boost leak somewhere. Vida not showing any related codes,
Car is as per my sig, but approaching 174,000 miles now.

[Simmy]

keep an eye on your oil levels to high can affect dpf regens and soot messages

[Aus2012XC60]

Mine does it every tank and a half or approx 1200kms.

The scanner app (Car Scanner) suggests it the DPF gets up to about 25 to 30gms of soot before it does a burn.

I do a mix of city commutes and highway. It will do a burn regardless of the driving conditions.

[SwissXC90]

To corroborate Aus2012XC60's post:

I once did the math on my XC90 D5, based on the data published in VIDA, and it showed that the DPF will fill up and trigger a regen cycle at every 1 to 2 tanks of fuel.

Match confirms real world observations, isn't that fantastic!

[reggit]

That’s useful, mines regenerating too often and is showing 25-26g of soot when it starts. Guess I’m hunting for a small airleak somewhere - most likely down the back of the engine.
Thank you

[vickyg]

Is it possible within VIDA to see when regen last took place? While I am dealing with a swirl port oil leakage I've read info that with the flaps not operating properly automatic regen may not occur? I know with VIDA you can force a regen. Wondering if I should do this or no?

Thanks

[johnnyoro]

Originally Posted by reggit

Hi all,

Does anyone know a ball park mileage you’d expect the DPF in an early E5 D5 (205bhp) to regenerate? I’ve been chasing what I perceive to be poor mpg since I got the car last summer, with COVID it’s not seen a lot of use (like most others I guess).
Anyway now I’ve been able to get some mileage up, I’m using an ELM327 and a car scanner app to monitor the DPF soot level and see how often it initiates a regeneration cycle. I’ve found that with 85% motorway driving at 75ish (adaptive cruise set to 75 so it’s up and down a bit with traffic) the DPF is full and regenerating at around 330 miles.
Not had one of these ‘modern’ diesels before, so unsure if this is expected mileage to fill it with soot, I have a mild turbo whistle that I can hear with the window down, and am wondering if I’ve a mild boost leak somewhere. Vida not showing any related codes,
Car is as per my sig, but approaching 174,000 miles now.

Hi have you looked through the list of sensors on the carscan app? . On my vehicle admittedly newer there is a readout of when the last regen occurred ( distance since last regen) the soot level on mine shoots up to 17.2 grams , dpf temp climbs to almost 700deg , and the distance since last regen drops to 0 . It usually takes up to 7 to 10 miles to complete .The time varies a bit depending on where you are driving
The most recent regen was at 516mls

[reggit]

Been watching it on ‘car scanner’, it seems to go into regen at around 26-27g of soot which seems to be anywhere between 330-430 miles on a steady motorway run. I can also hear the turbo whistle quietly if I have a window open, so guessing there’s a minor leak in the intake pipe work somewhere. May just get it in the garage for a smoke test, tried a DIY job but wasn’t too successful.