Mondeo ST220 catalytic converters

[Catbus]

Good evening,

I'm having a very tough time sourcing replacement cats for the Mondy. Ford no longer make them, no factors I've called have them and the main set on ebay says they're not suitable for an ST220 even though they state they are in the title. I've emailed a few custom performance places on the offchance but anyone got any bright ideas please or my otherwise very good low mileage example is being scrapped (emission faliure on MOT)

EDIT: I have researched extensively and can't find anyone who already makes or is willing to custom make some cats. What I'm asking you lovely people is whether you personally know or have heard of anyone with an ST220 with custom cats or a mod firm who has created such. Thankyou

Edited by Catbus on Saturday 3rd March 11:58

[E-bmw]

Pardon my ignorance but I am not aware of the configuration of your exhaust.

If it is a "manicat" an in the exhaust manifold & cat are combined then the only place you will get that configuration is from Ford.

If it is separate from the cat you can go to somewhere like "powerflow" or some similar local custom stainless exhaust manufacturer & they will make one up to suit.

If it is a simple bolt/sleeve in/out arrangement is shouldn't be too expensive.

Another option is to hire/borrow a welder & get a similar sized cat on the bay and make it yourself.

[Catbus]

Thanks for replying! There are two cats (Bank 1 and Bank 2) and Ford have stopped making them. I've tried quite a few motor factors and no joy. I have a few more on the list but ideally would like a full custom stainless steel jobby. None exist that I know of or can find by research.

[E-bmw]

You say bank 1 & 2 but you didn't answer if they are part of the manifold as I asked?

You say there is no stainless custom full system available, there are manufacturers all over the country, there are 3 within 10 miles of me near Leeds.

Google is your friend.

[Catbus]

None of them make the cats. I cannot answer your question. I know that the engine needs to be dropped put for the bank 1 cat to be replaced. To state the patently obvious I am not a mechanic!

[Squishey]

They are "manicats" on the ST220.

You could have some custom tubular manifolds made then add a "conventional" in-line cat to the system.

Or look in to whether the exhaust system from the 3.0 Jaguar X-Type shares the same configuration.

ETA: A quick Google suggests the Jag X-Type 2.5 & 3.0 use the same cats which look very similar to the ST220 ones.

Edited by Squishey on Saturday 3rd March 11:27

[E-bmw]

^^^^ Wot 'e said.

Just because Ford made it like that doesn't mean it has to be like that.

Yes, it is true that the closer the cat is to the engine the quicker it gets up to temperature and therefore the quicker it is working efficiently, but there are still ways that the custom guys can get close to it.

Go & see a few & tell them what you want, for the right money they can & will do it.

[Catbus]

Ok I'll just keep trying but so far no-one is interested!

[E-bmw]

You could always buy a pair of these

https://www.ebay.co.uk/itm/STAINLESS-STEEL-DECAT-D...

& get cats welded in to them.

[Catbus]

I've been eyeing those up but assume car will fail mot without cats. If I need to weld cats in that still leaves me with the issue of sourcing cats, which is my issue.

[E-bmw]

Jesus, how hard is it?

Have you tried searching?

https://www.ebay.co.uk/itm/2-5-UNIVERSAL-STAINLESS...

Don't know if they are the right diameter tube obviously.

[Catbus]

All the sellers I've contacted so far have told me their cats won't fit my car.

Jesus how hard is it to be polite and respectful? If you can't help there's no need to keep posting is there.

[E-bmw]

If I can't help!!!!!!

Have you read all the above?

No they won't fit your car, you need to do your homework, find your pipe diameter, get a welder, buy some bits & make them fit, or pay someone to do it.

Horse.....Water.....Drink!

I'm out!

[Squishey]

Have a look at the Jaguar X-Type catalytic converters on Google. Comparing exploded diagrams of the X-Type vs ST220 exhaust systems, and also images of the actual parts, they look identical.

[Catbus]

Ok thanks Squishy will have a look! I just read that 80% components were different so hadn't looked at the cat's specifically.

[Squishey]

The X-Type and Mondeo don't share many components but engines are one that they do. The 3.0 V6 in the Jag and the ST220 is the same except the Jag has variable valve timing so more power.

The petrol V6s in S-Type and X-Type are Ford derived.

Edited by Squishey on Saturday 3rd March 13:37

[Catbus]

Thankyou

[Picko74]

Hi ,

I am a fellow victim of the Mondeo ST220 cat converter renewal ... did you manage to resolve?

[Catbus]

Hi,

I'm sorry to report I didn't :'(