Cat Converter warning light

[mikeh6947]

Posted this on fb group but thought I might get additional advice here.
Driving back from Glastonbury festival in my 2018 T6 (I’ve had it for six months and it's at 61k); I noticed the Catalytic Converter warning light had come on full not flashing (the one that looks like an engine but manual says is Cat Converter fault). It has been suggested I try a diesel additive and some motorway high rev driving. is this likely to work ? Do I need to go to a main dealer? What is it likely to be / cost?
All reactions:

All reactions:

11​

 

[Lensey]

I had the same problem a couple of weeks ago for a few days then it went off. Now it's come on again, tried running for 15mins at 50mph as per handbook but still on

 

[mikeh6947]

I tried the additive and motorway run trick but light still on. There are so many different additive brands/types; so totally unsure if I should have used a different one.
Anyway it’s in for MOT tomorrow and hopefully the local garage will be able to sort it.
Did you have any success ?

 

[mikeh6947]

So the van passed the MOT today and the local mechanic managed to turn off the warning light (didn’t charge me for that).
He said it related to the third cylinder glow plug.
When I asked what it would lt would cost to replace it he said they probably couldn’t be able to do it as it needed special tooling.
Will see if it comes on again.
But in the meantime any advice from forum members ?

 

[StratosFearXX]

So the van passed the MOT today and the local mechanic managed to turn off the warning light (didn’t charge me for that).
He said it related to the third cylinder glow plug.
When I asked what it would lt would cost to replace it he said they probably couldn’t be able to do it as it needed special tooling.
Will see if it comes on again.
But in the meantime any advice from forum members ?

Engine light on can be many many things, need to scan it for fault codes.

 

[mikeh6947]

As I said local MOT guy said scanned fault message was - third cylinder glow plug.
Now I've got a 2 massive quotes from main dealer (1) to change the plug and hoses etc (2) to do a full diagnostic to see if that is the problem, Meanwhile van running great.
Any helpful suggestions?

 

[StratosFearXX]

As I said local MOT guy said scanned fault message was - third cylinder glow plug.
Now I've got a 2 massive quotes from main dealer (1) to change the plug and hoses etc (2) to do a full diagnostic to see if that is the problem, Meanwhile van running great.
Any helpful suggestions?

Sorry, must've not read your post properly.

Is the light on again?

 

[whodat]

What was the massive quote?