02 sensors galore + secondary air pump (?) W12

[Chin]

When I got the car it needed a sensor 1 bank 1 02 sensor replacing so I replaced it and cleared the fault, I also ran a whole bottle of cataclean and all was well, until today I had the car scanned and now sensor 1 bank 2 has gone **** up I don't know how hot the engine should feel after a spirited drive because Ive never had a car with such a big and powerful engine but there is quiet a bit of heat coming out of it, also ive noticed that theres a slight "noise" coming from the front drivers side arch , is that where the secondary air pump is ? its not a rattle or squeak but sounds more like tapping , not overly loud you can just hear it if you bend over to listen to it. Is this normal ?

Now the car is still under warranty but a) id have to take a day off work and loose out on £££ and b) it would cost me at least £100 in fuel to drive to warrington and back so I would rather pay someone £250 max to replace the sensor for me as AFAIK id need to get the manifold off to get to it and I don't really fancy doing that , not on a W12 anyway

Is taking the engine out REALLY necessary to get rid of the b@stard cats ?

I know im a pain in the back but im all new to this big petrol engine malarkey

[darrenjoe90]

I used to have a D2 S8 and when one of my cats went faulty i had the car de-cated. I have always said if one of my cats go faulty in my W12 it will also be de-cated

[Chin]

Hi Darren , are all your 02 sensors ok ? Where did you get the D2 de-cated and how much did it cost ? Id love to get mine de-cated but if it does cost £1000+ then it'll have to wait

PS, what colour is your car ? Looks same colour as mine , is Silver Violet the proper name for it ?

[darrenjoe90]

Hi Chin

I got my de-cat done at a place called Zorstec near bradford and from what i remember it was about £200. I am pretty sure it will be more for the W12(A lot more)
I think my car colour is called Dirty silver

[Architex_mA8tey]

Originally Posted by darrenjoe90

I think my car colour is called Dirty silver

lol thats a very close colour to your D2 S8 which was dirty blue

[David's8]

Originally Posted by Architex_mA8tey

lol thats a very close colour to your D2 S8 which was dirty blue

Is that Ming-ing Blue?

[GlynH]

Originally Posted by Chin

When I got the car it needed a sensor 1 bank 1 02 sensor replacing

What was the physical location of the O2 sensor?

I have seen this on my W12 as an intermittent fault - although it is on far more than it is off!

VCDS is unable to clear the fault as it pops straight back but strangely when it was last serviced by Audi it had cleared when I picked the car up.

Likewise today when I picked it up from an independent Audi dealer it had also cleared although I expect it to return shortly!

Thanks & kind regards,
-=Glyn=-

[Chin]

Open the bonnet, on the drivers side take off the MAF and the airbox and youll see it down below next to the heatshield Theres a guide on here too !