most people with a dpf diesel engine will know all about the pain in the @rse these regens are , especially if driving short journeys in slow traffic etc.

sometimes it's not easy to get the car onto a good road and keep the revs up above 2000 rpm   

 

so here's my solution  

 

once a week or whenever you feel the need, 

use your  trolley jack to  jack the front of the car up off the ground and place on axle stands

then start the car up, into  gear, revs up above 2000 rpm,   cruise control  on

 

pour yourself a drink, sit  back and relax, no pressure    

 

or alternatively get your own rolling road 

 

If you have to go to those lengths because you don't have access to a good road and keep the revs above 2k - I'd be questioning why they've chosen diesel over petrol?  And if most folk buy diesels for fuel economy - kinda defeats the purpose with the engine running on axle stands or on a rolling road? 

 

"I get 60mpg out of my car...  40 of them on the road and 20 going nowhere".

Edited 12 July, 20187 yr by Guest

Runnning the car on axle stands won't create enough load on the engine to do a regen in a sensible time anyway, total waste of time and fuel

14 minutes ago, Scot5 said:

If you have to go to those lengths because you don't have access to a good road and keep the revs above 2k - I'd be questioning why they've chosen diesel over petrol?  And if most folk buy diesels for fuel economy - kinda defeats the purpose with the engine running on axle stands or on a rolling road? 

 

"I get 60mpg out of my car...  40 of them on the road and 20 going nowhere".

it's not all about fuel economy with a diesel  [ not for me anyway ]

it's the mid range torque you get with diesels, torque that most petrol cars can only dream about   

2 minutes ago, SuperbTWM said:

Runnning the car on axle stands won't create enough load on the engine to do a regen in a sensible time anyway, total waste of time and fuel

if you get/ keep the revs above 2000 rpm it will

Just now, 310golfr said:

if you get/ keep the revs above 2000 rpm it will

 

its not just engine RPM you want, its LOAD on the engine. LOAD means the engine and turbo are working hard, this = higher EGTs.

 

What your doing is no better than just revving the car in neutral. Its not rocket science.

 

what a nutty idea..  I suggest you just give up drinking and take the car for a decent drive.. 

 

 

9 hours ago, 310golfr said:

it's the mid range torque you get with diesels, torque that most petrol cars can only dream about   

Time to consider an EV, they are torquey  

 

As mentioned, load on the engine is required to reach temperature. Please refrain yourself from wasting fuel and generating pollution.

That plan didn't work out too well before.......

 

My 07` MK2 2.0 Tdi Octavia Scout gave me no DPF problems in 8 years, my mate runs a garage  mainly dealing with VW/ Audi/ Skoda, when I bought the car his advice was never use supermarket fuel, use Shell whenever possible which has the added bonus of better MPG, and go for a run up the motorway at least once a week  which I did anyway as part of my normal driving.

 

A month in with my MK3 Scout and I hope its as reliable.

Edited 13 July, 20187 yr by Greenie58

Hello all,

 

My Mk3 Octavia 1.6 diesel DSG can regenerate at idle provided the oxi cat and engine is at operating temperature. It can easily hold 600c at idle. Have checked this with many obd tools showing exhaust temps.

 

The best way to get a fast regen is to drive at constant speed. This way the ECU can better control the post injection allowing better DPF temperature management. Accelerating and decelerating on the road varies the DPF temps too and my prolong the proces. Best where possible to do a constant speed drive, say at 60mph is better than trying to drive at 70 (or higher) and slowing down cos people are in your way then speeding up again.

 

Also nothing will happen no matter what you do to the car for regeneration unless the soot loading has reached the required value to trigger Regeneration. The only exception is driving on the autobahn in Germany at max vehicle speed. In this situation the natural exhaust temps are already high (above 600C) because your running st max power of the engine.

 

just my observations on my 1.6

haha, a lot of doubting Thomas's out there who are quick to dismiss  

strange how this worked for me the other week

 

got home from work, tell tale sign of car doing regen , fan running and smell from exhaust

so thought lets give this a try,  under a minute to get car on stands and  10 minutes or so later regen finished .

 

now i'm not for a minute suggesting you do this from cold 

but if the car has started  a regen but not finished it and  exhaust  is up to temp, then it's another option  

 

sometimes it's just not possible/convenient  to take  the car for a good run

 

the joys of driving a modern diesel,

yea canny whack them for  torque thought 

I find long drives are pointless anyway. Do 150miles 3 days a week and the dpf clean always kicks off when I go to the local shop.

 

 

1 hour ago, Novascape said:

I find long drives are pointless anyway. Do 150miles 3 days a week and the dpf clean always kicks off when I go to the local shop.

 

 

How do you know when the regen is happening? I’m a month into a my MK3 ownership.

 

Edited 14 July, 20187 yr by Greenie58

1 hour ago, Greenie58 said:

How do you know when the regen is happening? I’m a month into a my MK3 ownership.

 

 

stop/start doesn't work, fan doesn't stop when you get out the car and the exhaust fumes smell like a tyre fire

33 minutes ago, tunedude said:

 

stop/start doesn't work, fan doesn't stop when you get out the car and the exhaust fumes smell like a tyre fire

Cheers

Permanent damage to the DPF could result in the MK2 if it got clogged and didn’t regenerate properly, 

Is the DPF technology more sophisticated in the MK3 meaning this far less likely?

 

and how do other car manufacturers get around diesel emissions?

 

Im strictly a VW, Audi, Skoda driver so that’s what I’m used to. 

 

On 13/07/2018 at 17:14, 310golfr said:

haha, a lot of doubting Thomas's out there who are quick to dismiss  

strange how this worked for me the other week

 

got home from work, tell tale sign of car doing regen , fan running and smell from exhaust

so thought lets give this a try,  under a minute to get car on stands and  10 minutes or so later regen finished .

 

now i'm not for a minute suggesting you do this from cold 

but if the car has started  a regen but not finished it and  exhaust  is up to temp, then it's another option  

 

sometimes it's just not possible/convenient  to take  the car for a good run

 

the joys of driving a modern diesel,

yea canny whack them for  torque thought 

Not all of us have driveways & it's illegal to leave the engine idling on a public road.

There is no need to anything when it regens. Just shut the engine off, lock the car and leave it to do its own thing. It will shut off when complete.