DPF/Catalytic Converter...?

[The Seer]

New to the diesel tuning circle hence the reason for asking such a question.

My Cupra TDi is fitted with a Miltek turbo back exhaust. There's a de cat pipe in their too. Is this the same thing as deleting a DPF?

Thanks.

 

[Blanco92]

Nope, they're two different things.

The catalytic converter at the front end of the exhaust converts (apparently, in a Jeremy Clarkson style voice) harmful chemicals like carbon monoxide into carbon dioxide.

The DPF (Diesel Particulate Filter) as far as I'm aware is mounted in the backbox, and just sits there collecting up all the black soot until it goes through a regeneration cycle and burns it all off. So it's main function is just to reduce soot/black smoke.

Thankfully, the Mk4s weren't built with DPFs, so we'll leave the Mk5 boys to worry about that.

As you've probably guessed I'm not keen on the DPFs, I've heard too many horror stories about them on various cars. Thankfully they can be deleted.

 

[DEAN0]

Nope, they're two different things.

The catalytic converter at the front end of the exhaust converts (apparently, in a Jeremy Clarkson style voice) harmful chemicals like carbon monoxide into carbon dioxide.

The DPF (Diesel Particulate Filter) as far as I'm aware is mounted in the backbox, and just sits there collecting up all the black soot until it goes through a regeneration cycle and burns it all off. So it's main function is just to reduce soot/black smoke.

Thankfully, the Mk4s weren't built with DPFs, so we'll leave the Mk5 boys to worry about that.

As you've probably guessed I'm not keen on the DPFs, I've heard too many horror stories about them on various cars. Thankfully they can be deleted.

The DPF on the MK5 is mounted straight after the turbo. It looks like a silencer box strapped in between the turbo and the exhaust downpipe.
It needs to be that close so it can get hot enough to do a regen and burn off the collected soot.

Agreed - stupid piece of equipment.

 

[The Seer]

Nope, they're two different things.

The catalytic converter at the front end of the exhaust converts (apparently, in a Jeremy Clarkson style voice) harmful chemicals like carbon monoxide into carbon dioxide.

The DPF (Diesel Particulate Filter) as far as I'm aware is mounted in the backbox, and just sits there collecting up all the black soot until it goes through a regeneration cycle and burns it all off. So it's main function is just to reduce soot/black smoke.

Thankfully, the Mk4s weren't built with DPFs, so we'll leave the Mk5 boys to worry about that.

As you've probably guessed I'm not keen on the DPFs, I've heard too many horror stories about them on various cars. Thankfully they can be deleted.

Thanks for the info, much appreciated One less thing to worry about!

 

[Ben87]

Nice to see I'm not the only one asking simple questions/thinking them.

I've heard too many horror stories about the filters also on other cars,glad I've chooses a mk4 to go after.

They were out in due to government go green crap.

 

[Ben87]

With the cats if you remove carefully you may be able to get a few quid at a scrappy for it, off my old pug 306 a scrappy gave me £50 for it