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CarlizzleFoSho Members

9 December, 201411 yr

9 December, 201411 yr Random questions. My current C30 D5 has a Polestar remap.   I've been looking to get the DPF deleted (so outside retained but interior knocked out). I've been told that if I get this done the Polestar remap would have to be deleted and I'd need a new remap as the Polestar one works with the DPF.   Is this true? Is there no way of keeping the Polestar map?   This new map along with the DPF delete is more powerful: (225bhp & 480nm torque) Wouldn't this cause more strain on the car? 

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

Anyone?  :coffee:

Fr0d FREEDOM

10 December, 201411 yr

10 December, 201411 yr

Yes, things wear out quicker with remaps.

 

It will have been mapped to take the DPF into consideration. I'm no expert but with the difference in back pressure and the associated emission sensors things will throw a fit.

 

There is no good reason to remove the DPF.

softscoop FREEDOMLite

10 December, 201411 yr

10 December, 201411 yr

Save people's health and pass an MOT....Keep the DPF. It's there for a reason and regulations are getting tougher so if it doesn't fail this year, it will do soon.

 

 

 

If you insist on doing it, then you'd usually have to get a new map, or at least get the map altered to suit the DPF delete as it expects it to be there and who knows what would happen if it tried to regen with a hollow pipe.

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

Only reason I'm considering getting the DPF delete is because the internet has made me worry.

 

My job has gone from being 35miles away to now 15 miles away and it's all country roads. so 30 miles a day of country roads. From what people seem to be saying that'd kill the DPF?

 

I just don't want to risk that happening.. :/

vindaloo Resident Member

10 December, 201411 yr

10 December, 201411 yr

Any way of monitoring it properly? Maybe with Torque or similar?

 

More I read of DPFs, the more I think it's a complicated scare mongering to get people to spend money. Yes, DPFs do block, but often, supporting items can fail, sensors, rubber hoses get holed etc... Also Been finding that some cats and DPFs are now produced as a single canister unit!

 

Quite a lot of discussion around the net for various makes...

 

J.

meb90 Members

10 December, 201411 yr

10 December, 201411 yr

Another vote for not removing the DPF here, not a fan of the idea - sorry.

 

I can't see why 30 miles a day would cause any harm, that's what I do and haven't had any ill effects. If the engine gets warm (which surely it will with your added Polestar) then can't see why it wouldn't be OK.

 

Agree though that there is a lot of scaremongering out there, most of which I don't think is correct. Of course I am not claiming to be an expert, just chipping in with my 2p

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

No Thanks guys, I appreciate seeing another side to the DPF malarky! This is honestly the first time I've heard something vaguely positive about it.

 

It's just because I don't use the motorway every day of the week and as I said my journey to work is only country roads it's just constantly in the back of my head!

 

My car has quite high miles on it, but there's other C30 d5's (with DPF) that have done close to 200,000's and never had the DPF go wrong.

 

Wish I'd never Google'd any of this in all honesty! It's only made me more concerned than anything else. Just as a note, I don't drive like a boy racer or like miss daisy. However it does get the occasional boot when the back roads are clear. I don't like the idea of taking it out either, but I 'spose if it ever went wrong I would most likely get it taken out as the cost to replace one seems absurd.

meb90 Members

10 December, 201411 yr

10 December, 201411 yr

Sorry - I didn't mean to come across critising your driving style. I was just thinking that as you have a Polestar map, you might be more tempted to use it :P

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

Oh no that's not what I meant either! Lol

 

You can rest asssured I do indeed use it The lag is quite amusing though..nothing....nothing....WARP SPEED FACE MELTING.

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softscoop FREEDOMLite

10 December, 201411 yr

10 December, 201411 yr

Country roads will be better surely as you're more likely to be revving and using gears getting the exhaust nice and hot.

 

Motorway cars just sit at low RPM not getting very hot.

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

Ahh OK, I heard in a few places that cars with older DPF's (mine's 2009) need to sit at constant revs (preferably motorway) as this helps the regen process instead of revs that fluctuate (town or country road driving).

 

This could just be another load of DPF crazies shi**ing me up about something that is less of an issue than people make out!

Guest_ FREEDOM

10 December, 201411 yr

10 December, 201411 yr

If your car is showing no problems in the way it is being used,

best not worry about them.

Or think of more expense where there is none.

 

if your 5 year old car does end up needing a Replacement DPF, that might be the time to consider doing away with it.

Or not if affordable replacement ones are available.

& they are now.

• 1

SuperNovaTuning Members

10 December, 201411 yr

10 December, 201411 yr

Strictly from a software point of view, you can use the remap that you currently have however you will need the DPF structure removed from the software or you will end up with limp mode due to the pressure difference in the exhaust.

 

You can simply ask your tuner to remove the DPF filter structure from the software to allow for physical removal of the hardware. If you tuner is unable you will need to find a file writer to remove the DPF structure from the ECU.

 

If you need any further advise please feel free to let us know.

 

Kind Regards Matt @ Super Nova Tuning

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vrsadz Resident Member

10 December, 201411 yr

10 December, 201411 yr

using the correct diesel i.e  bp, shell etc alot of people get problems using supermarket fuel due to its low cetane rating it cant burn the soot particles off resulting in dpf getting blocked. take your car for a motorway blast for about half an hour so the exhaust can get hott enough to allow a regen

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silver1011 Resident Member

10 December, 201411 yr

10 December, 201411 yr

A common misconception is that high revs and 'driving like you've stolen it' is better for the DPF. All this does is create more soot!

 

Passive regeneration (this is where the DPF burns off the soot using the heat generated through normal daily driving) is far more beneficial. Here there are no regens (high RPM's, increased fuel consumption etc.), the DPF just does it's thing without any intervention. 

 

Only when passive regeneration isn't possible (short journey's etc.) does the need for an active regeneration occur. This is when the car takes steps to clear the DPF such as injecting more fuel and increasing the RPM's to create more heat.

 

If passive regenerating isn't possible and the driving conditions don't allow an active regeneration to complete only then do you see a warning light on the dash. This is the cars way of telling you it needs your help, it can't clear the DPF by itself.

 

Even after clearing the DPF light through holding a constant speed and RPM you may never see it again. A one-off is just that, seeing the light repeatedly is a sign that your driving isn't suited to a DPF equipped diesel or there is a fault.

 

Don't loose sleep over a fully functioning DPF and don't remove it if there is no need to.

• 2

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

Well explained in laymen's terms! No you're right, there's no need to fork out for something that isn't causing a problem. Your explanation has helped though as part of the problem is correctly understand how the DPF works and what causes it to go wrong.

 

I for one will never understand why mum's, who literally pick their kids up from school and nip to the shops, why on Earth they need a diesel?! Popped into the Seat showroom at the weekend as my friend was after a Leon. Overheard a salesman pretty much begging this person not to buy a diesel.

 

"How many miles do you do to require a diesel?"

 

"About 4,000 a year I just like diesels."

 

"Have you considered a petrol? With your mileage it could cause problems down the line and it costs you more to run than a petrol."

 

"I want a diesel though."

 

 

*Sigh* If I did that mileage I'd get the goddamn Cupra.

• 2

vrsadz Resident Member

10 December, 201411 yr

10 December, 201411 yr

lol id still have a diesel even if i did 4k a year.  if i had a 5 pot like you id have to sell it cos i would keep driving it flat out to hear the 5 cylinder roar 

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

The roar of the 5cyl is very VERY addictive not gonna lie! It sounds epic, about as close to my favourite noise (a V8) that you can get

• 1

vrsadz Resident Member

10 December, 201411 yr

10 December, 201411 yr

sounds like a focus rs but not as quick.

silver1011 Resident Member

10 December, 201411 yr

10 December, 201411 yr

Yep, if I was only doing 4,000 miles a year I'd be driving a supercharged V8 Range Rover not a poxy diesel Skoda

 

• 2

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

Correct :P I just can't get over how much it pulls even past 3k revs. I'd never dream of allowing a diesel past 3k as you'd get nothing more out of it other than it complaining.

 

It's really bizarre but super fun. I still can't over the size of the steering wheel though, honestly it's huge. Not quite sure what Volvo were thinking but it's along the lines of the width of that trophy the women get at Wimbledon.

 

"Hi, this is my C30, I steer it using a plate."

• 1

vrsadz Resident Member

10 December, 201411 yr

10 December, 201411 yr

lol i take it you are enjoying your c30 d5

CarlizzleFoSho Members

10 December, 201411 yr

• Author

10 December, 201411 yr

• Author

It's great fun Loved my little Fabia VRS Diesel to bits, but this is a nice step up. Sitting so low in it it really does feel like a proper coupe. Honestly you wouldn't think you're in a Volvo!

• 1

vrsadz Resident Member

10 December, 201411 yr

10 December, 201411 yr

yeah my vrs was the best car ive had  by far but the superb is totally different in every way lol.  tbh you dont see that many c30 d5 about so you have a rear swedish monster lol

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