Audi s8 d3 5.2 litre v10 £3.5k

[IT]

Originally Posted by Furryhobnob

Hi guys I'm listing for sale my s8 5.2 litre v10, I bought it around 3 years ago from here, previous owner was olly.
In my ownership I've changed fuel filter, all discs, rocker gasket covers, all new spark plugs, a new oem battery that was coded to the car, aswell as general maintenance that has been done at least once a year, I've got all the history from olly and all work that I've had done in my ownership I believe.
Car is very well specced including.....
Spec includes:
Bang & Olufsen speakers
Solar panel sunroof
Adaptive Cruise Control (radar)
Rear seat entertainment with 6 DVD multichanger in the boot, and remote in the rear armrest
Audi Music Interface with genuine USB & Apple leads
Digital TV (with video in motion front and rear)
Fingerprint memory / start with keyless entry
Audi Parking System Advanced
Tyre-pressure monitoring (pressures & temperatures)
Through-load ski hatch and ski bag
HomeLink garage door opener
Electric rear and side privacy blinds
Twin-pane/UV insulating glass and heated windscreen

Now the bad, the car started hunting at idle and almost cuts out in neutral, when driving its perfectly fine so I bought a run around to get me a to work and back while I left the s8 with my dad who's a master tech to see if he can source the problem. Unfortunaly other family issues have got in the way and he's not had time to look at it.
Car got sorn a few months back and currently has no mot. The car was leaking oil which I was told is the rocker gaskets, which were both replaced, but the car still leaks oil slightly.
There's a patch with no lacquer on the front that was like this when I bought it from olly on here, and hasn't got any worse, and just before I drove this to my folks my neighbours daughter swiped the rear bumper slightly, it's mostly buffed out but is still there.
Car comes with a private plate of s8 fkd which when last checked was worth around £750.
Mileage is around 160k miles, but I'll confirm exactly when I see the car next.
Alloys were refurbed around a year ago but 1 is showing a kerb mark, and all 4 tyres were changed around 5000 miles ago too, so all have plenty of life remaining. Will also come with 3 brand new coil packs that I bought for as and when they fail.
With young boys and a hectic job I'm just not having the time to spend on the s8 and it pains me to see it sitting there, so i put it on here in the hope someone is willing to spend a little money to get her singing again.
As for the price I'm going to list it at £3.5k which I think is a bargain and leaves plenty of meat on the bone for someone willing to put the time in to sort the problems and still have a bargain. Any questions feel free to ask and I will answer as honestly as I can, cheers
Link to thread where I bought it on here: http://forum.a8parts.co.uk/showthrea...231#post151231

I will also try and get some pics up myself when I'm next over at my folks.
Collection would be from nuneaton/Warwickshire.
Haven't posted it for sale anywhere else yet either, will give it a couple of weeks on here first.

You have PM

[S81]

When you remove the oil cap on the engine i know my car goes of idle ,the chap i know who does a lot of engine work says its to do with it being a positive pressure engine ,i'm sure someone here will know exactly what that means

[MikkiJayne]

Originally Posted by S81

When you remove the oil cap on the engine i know my car goes of idle ,the chap i know who does a lot of engine work says its to do with it being a positive pressure engine ,i'm sure someone here will know exactly what that means

Positive Crankcase Ventilation (PCV). It's a bit of a misnomer tbh because intake vacuum is applied to the crankcase to suck out any combustion gases which escape past the piston rings. That makes the pressure in the crankcase negative at low engine load, so I guess it really means 'we definitely are ventilating the crankcase' The breather pod cuts off the vacuum under heavy load or wide throttle openings, since there is no vacuum to do anything, and high load on the engine seals the rings up more so there is less blow-by to recover.

When you remove the oil cap, you basically allow a load of unmetered air in to the engine via the breather pod, which upsets the combustion because the ecu doesn't know about it and so struggles to compensate.

If you remove the cap and it doesn't affect a bad idle then you have an air leak somewhere. The first place I'd look with this one is the inlet manifold gaskets, since its been off previously. Not sure how complex the vacuum system is on the V10, but thats somewhere else to look.

Also, someone please buy this because the price is verging on me buying it just for the engine and I have enough projects already!

[Furryhobnob]

Originally Posted by MikkiJayne

Positive Crankcase Ventilation (PCV). It's a bit of a misnomer tbh because intake vacuum is applied to the crankcase to suck out any combustion gases which escape past the piston rings. That makes the pressure in the crankcase negative at low engine load, so I guess it really means 'we definitely are ventilating the crankcase' The breather pod cuts off the vacuum under heavy load or wide throttle openings, since there is no vacuum to do anything, and high load on the engine seals the rings up more so there is less blow-by to recover.

When you remove the oil cap, you basically allow a load of unmetered air in to the engine via the breather pod, which upsets the combustion because the ecu doesn't know about it and so struggles to compensate.

If you remove the cap and it doesn't affect a bad idle then you have an air leak somewhere. The first place I'd look with this one is the inlet manifold gaskets, since its been off previously. Not sure how complex the vacuum system is on the V10, but thats somewhere else to look.

Also, someone please buy this because the price is verging on me buying it just for the engine and I have enough projects already!

If homer simpson doesn't have it then someone has already dropped me a pm saying they will take it, I'll just be glad it's going to someone willing to give it some tlc and get it singing again, cheers

[Furryhobnob]

Well I've certainly garnered alot of interest, in people wanting to buy and others with advice of what the issue could be, because of this I'm going to withdraw it from sale for the time being and try and source the idling issue myself.
I feel this is the right path to go down right now as there's not many of these around and it would pain me to see it stripped or used as a donor without me first trying, hope everyone interested understands. Regards

[tonupkid]

Once everyone else has done the heavy lifting for you, you've swivelled

[Furryhobnob]

Originally Posted by tonupkid

Once everyone else has done the heavy lifting for you, you've swivelled

What do you mean Tony? Heavy lifting in what sense?

[Furryhobnob]

Originally Posted by IT

You have PM

Have replied Ian, thanks