Can the DPF be removed and still be legal and pass MOT?

Would emission be the same and pay similar Tax?

Wot is the benefit of DPF apart from removing tht black soot whn u put your foot down?

You can remove the dpf, but it will fail an MOT. You could just switch back to the dpf for the test though. Tax won't be effected because the price figures are based on the emissions the car produces as it left the factory

The benefit is that the dealer has another super expensive black box to diagnose and replace and that the poor fuel companies can sell you more diesel as the only real purpose of the DPF seems to be to pour your fuel out into your exhaust and then break because you're driving it at an economical RPM.

Cheers guys.

So after warranty runs out - thn good to remove thn!

But why would it fail the MOT?

Cheers

Did a few google on internet and basically too many inconsistent answers :-(

But the best seems to say:

1. Gut out the DPF and remap the ECU

2. As long as MOT can see the DPF (now empty) and pass emission test - it shud pass

3. Its a modification - so its your risk

4. Will cost £100s to do, but will increase by 1-2 mpg and slight more bhp

5. But no more dodgy or expensive DPF-related issues

Good way forward?

Putting empty box DPF back in shud prevent any Engine Management Light coming on too ...

My engine is the old PD which the buyer decided they want a DPF on, so it can pass emissions testing without one. In the MOT they can only visually inspect for it, so if the box is there but empty it should be ok. I certainly will look at having mine removed if there are any problems with it. If you declare it to your insurer then that should be point 3 covered.

However, I am not an MOT tester or solicitor

Cheers huskoda!

We are all here coz we dont know enough abt everything.

So its good to hear experience of other forum members! :-)

Personally I would leave it alone until the time it needs replacing, then and only then get it gutted and mapped out of the ECU.

The PD is well known to cause trouble with the DPF, the CR is less problematic though, so you may not have an issue with it depending on the type of driving you will do.

Cheers Gizmo.

I mostly commute 6miles.

Weekly blast on A-roads.

Followed by short school activities.

I hear diesel not best for short journeys and annual below 15k.

But i just love the torqueness and mpg and it outlasts petrols?

Which i think outweighs the clatter and modern diesel problems (eg DPF).

If tht sounds sensible to people...

For a 6 mile commute, go petrol. I can do that distance in my TDI without the engine even getting up to temp.

For a 6 mile commute, go petrol. I can do that distance in my TDI without the engine even getting up to temp.

Really?

Whn i wanted the Octavia i did choose tgd 1.8TSI over 170TDI

Coz similar tax, but cheaper insurance only lose 5mpg

But the superb is similar tax, similar insurance and loses 8mpg?

I could wrong?

Can someone confirm the above figures for me?

I do prefer the petrol for reliability of a simple engine.

But still love the torqueness of diesel :-)

You can remove the DPF and at the current time the car will still pass an MOT. There is no emissions test on a diesel engine, only a smoke test. Even without the DPF the engine smoke will still be well below the pass level.

I really would not worry about the DPF though, PD or CR. I did 44K miles in my old PD140 DSG DPF Superb MK2 with no problem, and during the last 12 months it was used for short commuting journeys of 1 mile each way and the odd weekend away. In 12 months the car covered just 8K miles, 3.5K of which was a run down to the Costa Del Sol and back, the other 4.5K was nearly all 30 and 60 limit roads.

Yes I could have gone petrol, but I like the way diesels drive over petrol. I also got back the difference in purchase price when I sold it, so I lost no more selling the diesel over petrol.

Thks Mannyo!

Both fuels i have pro's and con's.

But certainly my 1st choice would be petrol.

But for timebeing diesel cost makes sense.

Able to gut DPF would alleviate some of my fields for diesel problems .

Have had Commonrail Diesel cars with DPF since 2005. Haven't had any problems at all.

Many new DPF will also regenerate itself if you're one of those Ecodrivers that don't stress the PDF enough to regenerate while driving.

Even if they did make it a requirement of the MOT to have the DPF fitted and working (which is highly unlikely in the next 5+ years) then it will only apply to cars manufactured after the rule is introduced.

As above I'd leave it as is and only remove it if you start to suffer issues.

Thks Silver!

I think thts a grand idea too!

I have to agree that the DPF issue seems to be something and nothing...

We've got a 1.6 diesel Focus with DPF from new, now done circa 70k miles and not had a single DPF issue. I've also had a Mondeo with DPF up to about 20k miles (now in my Dad's ownership) and again, no issues...Both of those cars probably did less than 10k miles a year and my wife has had the Focus for circa 6 mile commutes for the last 3 years with no issues...

I expect the Superb will be exactly the same...

Starting to remove such parts at large cost all in the hope of curing an issue that possibly won't ever occur seems a little bonkers??

However, I'd always be interested to hear from people that have had issues < but there would need to be a lot for me to take it seriously!