Help! S8 Scary Engine Noise...Worried

[ainarssems]

There should be a fuse somewhere, not sure where. There is relay for it in electronics box in plenum chamber, fuse might be next to relay.

[mark_le_b]

Originally Posted by ainarssems

There should be a fuse somewhere, not sure where. There is relay for it in electronics box in plenum chamber, fuse might be next to relay.

Guess I need a fuse diagram now

[Goran]

I think I found it, should be fuse S130, a 50A fuse. I cant work out where its supposed to be in the drivers footwell on the side, or in one of the other fuse boxes. Maybe I'm being thick I cant find a fuse diagram in ElsaWin, surely there should be one?
Relay should be no. 4 in the passaenger footwell?

[mark_le_b]

Originally Posted by Goran

I think I found it, should be fuse S130, a 50A fuse. I cant work out where its supposed to be in the drivers footwell on the side, or in one of the other fuse boxes. Maybe I'm being thick I cant find a fuse diagram in ElsaWin, surely there should be one?
Relay should be no. 4 in the passaenger footwell?

Will try and find fuse and/or relay

can i pull the relay and not the fuse?

[Delboy]

Pulling the relay will do no harm, might throw an error but you won't damage anything.

[Adrian E]

Same component failed on our A6 Avant 3.0 petrol - sounded horrific but noise went away off idle. On stripping it the valve was full of crud, so be prepared to spend some time removing pipes in the vicinity and checking they're not blocked and/or squidgy from oil.

Not sure if it's the same for the '8 as was the case for the A6 but there were 2 part numbers, one being for a kit which included more bits and wasn't much different on price but included a couple of pipes - worth querying when you order

[mark_le_b]

Originally Posted by Adrian E

Same component failed on our A6 Avant 3.0 petrol - sounded horrific but noise went away off idle. On stripping it the valve was full of crud, so be prepared to spend some time removing pipes in the vicinity and checking they're not blocked and/or squidgy from oil.

Not sure if it's the same for the '8 as was the case for the A6 but there were 2 part numbers, one being for a kit which included more bits and wasn't much different on price but included a couple of pipes - worth querying when you order

I will check when I order
Thanks for the advice

[HPsauce]

It's worth just taking it off (dead easy with the right clic-r tool) and taking it apart (very simple) and checking/cleaning it.

Mine had a tiny tear in the very edge of the diaphragm which I reckoned wasn't a problem (probably clamped between the two halves of the body) but I bought a new one eventually just in case.

Once it's cleaned it's very easy to test it works by sucking and blowing into the appropriate orifice!

Kept my old one anyway as "backup". Part number on the casing is 077 103 245 B.

[mark_le_b]

Originally Posted by HPsauce

It's worth just taking it off (dead easy with the right clic-r tool) and taking it apart (very simple) and checking/cleaning it.

Mine had a tiny tear in the very edge of the diaphragm which I reckoned wasn't a problem (probably clamped between the two halves of the body) but I bought a new one eventually just in case.

Once it's cleaned it's very easy to test it works by sucking and blowing into the appropriate orifice!

Kept my old one anyway as "backup". Part number on the casing is 077 103 245 B.

I bought myself a pair of the right pliers to remove the clips - so shouldn't be an issue to get it off
Will take apart and have a look
I have ordered a part - but if the other one seems serviceable, will keep it as spare too
Thanks