Questions about Leon FR 184 and dpf/regen

[Seastormer]

Glad I went to petrol a few years back, when my dealer told me of the problems the DPF was causing the new breed of diesels.

 

[Snowman]

So iam I right in thinking if the tickover is at 1,000revs & I can hear the fan going at any time when iam about to stop the car is it better to leave it ticking over rather than stop it? or keep driving it ??

Ive just got some of that JLM DPF Regen Plus Additive ?? anyone used it?

From my understanding those events does not mean that the car is performing a regen.
I have the dsg and if i remeber correctly the tick over in D/R is slightly above in neutral, even when standing still.
So if I stop for 1s in D i might have about 1000rpm tick over, even though the car is not running a regen.

Also the fan might be running since the car simply needs the extra cooling?
The fans might also be running to help cool the car after it has finished it's regen.
But from my understanding there are no way of telling if your car is actually running a regen..

 

[Snowman]

Glad I went to petrol a few years back, when my dealer told me of the problems the DPF was causing the new breed of diesels.

I kind of agree with you.
But the fact is that I moved to this car from a 180ps leon fr.
This car is more usable, economic and pulls like a train!
My average consumption has gone from something like 0.75-0.8l/10km with the petrol to 0.55-0.6l/10km with the same or more performance.

So if you are mainly doing short runs you should Def go for a petrol.
Also I can imagine that the lower powered diesels might struggle while doing the regens.
But I don't even notice it on my 184ps while driving..

 

[Peter W]

I suggest you read the manual before it costs you a lot of money.

High revs are not the way to do a regen quickly.

steady speed above 40mph with revs between 2000 & 2500 provides the correct conditiond for best dpf regen process.

Yeah that's what the manual says, and works. My light came on a fortnight ago. It went out after about 8 miles of driving at 45 mph. It does a regen often as the car's only done 550 miles in the last 3 odd months. I changed jobs then and now walk to work..... If I had have known that I'd have bought a petrol! Maybe a cupra.

 

[Toon]

Remember regens also use engine oil so keep an eye on that too.

Repeated regens can cause oil levels to rise effectively diluting the engine oil. Not good.

 

[dw911]

I suggest you read the manual before it costs you a lot of money.

High revs are not the way to do a regen quickly.

steady speed above 40mph with revs between 2000 & 2500 provides the correct conditiond for best dpf regen process.

I did read the manual, I'm not saying it's wrong, but in my case driving as the manual suggest would not clear the warning light and the scary looking warning in the display, which could have ment an expensive trip to the dealer's
My method above cleared it in short order and normal service resumed

That's not to say my method is correct, but in my case it worked where the method stated in the handbook wouldn't

call my synicall, but if I was writing a car handbook and had a large dealer network to support, I might not want customers trying too hard to fix their own faults

 

[dw911]

From my understanding those events does not mean that the car is performing a regen.
I have the dsg and if i remeber correctly the tick over in D/R is slightly above in neutral, even when standing still.
So if I stop for 1s in D i might have about 1000rpm tick over, even though the car is not running a regen.

Also the fan might be running since the car simply needs the extra cooling?
The fans might also be running to help cool the car after it has finished it's regen.
But from my understanding there are no way of telling if your car is actually running a regen..

The fan can as you said run on to cool the car down after a regen, normally because the regeneration process was interrupted by the ignition being turned off.
If the car needs extra cooling the fan can run but it's much much quieter than if it's running regeneration related

Mine is a dsg and it only goes to a 1000 if it's doing a regen, or its in drive and I've taken my foot off the brake pedal and it ups the revs briefly ready to pull away.
The rest of the time it always sits around 800 unless regenerating

You can smell it doing a regen, or on mine i can, especially in the warmer months of the year

On my 12 plate mk2 leon, in 30000 miles, the fan never came on once and it never gave any indication it's was doing a regen and I never had the dpf warning light come on

Almost seems a step backwards on the mk3 the amount it seems to do it

 

[JK1]

During the regen the gear up/down indicator will hold back encouraging you to do 2000rpm+ before changing up and won't suggest changing up to a higher gear if the revs will drop. Normally without a regen it will suggest cruising at 1200rpm in as higher gear as possible.

 

[Richard-leon184]

Leon DPF Regen

i drive an 2014 184 fr Leon ...for the first time the dpf warning light came onI was driving on country lanes , so increased rpm 2500 to 3000 and within 5 minutes the light went out.
Then did a 30 minute drive of similar style , light still off
I have had the car for about 2 years and have been aware of the dpf regen taking place , 1000rpm and cooling fan coming on . As previously stated this occurred after a 6 hour drive on a motor way at 70 mph
I believe the dpf light came on because the car had not fully completed the auto dpf regen.
My driving is mainly town with occasional dual carriage way driving.
I used to own a Octavia 170vrs and never had an issue , but most days did 30 miles on the motor way . Does make me think that perhaps I would be better off with a petrol car, time will tell