Omega Owners Forum

Chat Area => General Car Chat => Topic started by: pauls on 16 October 2016, 16:24:09

Title: audi s4
Post by: pauls on 16 October 2016, 16:24:09
Going to look at a audi s4 tomorrow. A couple of questions if anybody can help.

will my code reader that i use on my 3.2 omega read a audi.
Is they any major issues that i should look out for.
How will i know if the chain drive has been replaced or not. Or is they any way of checking it is ok.

cheers
Title: Re: audi s4
Post by: Field Marshal Dr. Opti on 16 October 2016, 16:29:18
Which engine?
Title: Re: audi s4
Post by: Andy H on 16 October 2016, 16:36:35
Which code reader?
Title: Re: audi s4
Post by: pauls on 16 October 2016, 16:54:26
http://www.ebay.co.uk/itm/2004-Audi-S4-Cabriolet-4-2-Quattro-2dr-/172313891010?hash=item281eb550c2:g:mGAAAOSwWTRWu0~9

This one.

code reader is autel 801 i think
Title: Re: audi s4
Post by: Field Marshal Dr. Opti on 16 October 2016, 17:05:02
A nice 4.2 V8 one that runs on proper fuel and not lorry fuel.

My guess is that the garage already knows what the problem is.
Title: Re: audi s4
Post by: STEMO on 16 October 2016, 17:17:17
Ooooo......you could spend more on that one than an omega.....and I'm not talking purchase price.  ;D
Title: Re: audi s4
Post by: Ever Ready on 16 October 2016, 17:22:56
Mmmm  a 12 year old four wheel drive V8 Cabriolet that runs a ''little rough'',  what could go wrong? :'( :'( :'(



Wouldn't touch it with any kind of pole :)
Title: Re: audi s4
Post by: pauls on 16 October 2016, 17:24:16
Not buying it for keeps ;)
Title: Re: audi s4
Post by: 2boxerdogs on 16 October 2016, 17:30:04
Looks nice & no doubt it is a great engine but I know they can be a money pit.
Title: Re: audi s4
Post by: Ever Ready on 16 October 2016, 18:38:16
It does indeed look very nice and will go like stink, depends how much you want the car and how much to fix the rough engine.

As they say, you pays your money and you takes your chance.
Title: Re: audi s4
Post by: Nick W on 16 October 2016, 20:25:08
It does indeed look very nice and will go like stink, depends how much you want the car and how much to fix the rough engine.

As they say, you pays your money and you takes your chance.


It's an Audi. So either it needs a £30 ignition coil(and the garage will have tried that), or something oppsing expensive is wrong with it.
Title: Re: audi s4
Post by: STEMO on 16 October 2016, 20:26:56
There's a word on that ad that is open to interpretation............slightly.
Title: Re: audi s4
Post by: Ever Ready on 16 October 2016, 20:43:25
It does indeed look very nice and will go like stink, depends how much you want the car and how much to fix the rough engine.

As they say, you pays your money and you takes your chance.


It's an Audi. So either it needs a £30 ignition coil(and the garage will have tried that), or something oppsing expensive is wrong with it.

Indeed.

I seem to remember that the 4.2 suffers from carbon build up and needs to be de-coked.


The term 'Slightly' is slightly worrying :)
Title: Re: audi s4
Post by: Doctor Gollum on 16 October 2016, 21:24:18
What could possibly go wrong... :-X

Buy the car parked to the left of it instead
Title: Re: audi s4
Post by: baggers on 17 October 2016, 19:04:09
It does say "Black, Next MOT due 08/02/2017, Full service history,"

Now unless my eyes are playing trick on me those front disk's look knackered.
Title: Re: audi s4
Post by: pauls on 17 October 2016, 19:24:07
Decided i couldnt be bothered for more car hassle. Had enough this year with the omega.
Title: Re: audi s4
Post by: Marks DTM Calib on 18 October 2016, 09:13:21
If you do go down this route, drive it hard on a test drive, I have seen to many AWD VAG units with goosed Haldex modules as the owners don't keep the tyre tread depth fairly closely matched.

Of course being an A4 all the suspension bushes will be shot but there are some good heavy duty bush kits about now
Title: Re: audi s4
Post by: TheBoy on 18 October 2016, 18:07:02
but there are some good heavy duty bush kits about now
Which still don't seem to last as long as genuine VAG ones, but VAG ones are stupidly expensive (when you consider invariably all 8 pieces need changing pretty much at the same time)
Title: Re: audi s4
Post by: Viral_Jim on 24 October 2016, 23:35:10
It does indeed look very nice and will go like stink, depends how much you want the car and how much to fix the rough engine.

As they say, you pays your money and you takes your chance.


It's an Audi. So either it needs a £30 ignition coil(and the garage will have tried that), or something oppsing expensive is wrong with it.

Amongst many other issues, my dad's rs6 had these symptoms. Same engine, rs6 just adds twin blowers. Turned out it was a gear selector issue, meaning the gearbox ecu and engine ecu couldn't sing from the same hymn sheet. Induced rough running, not always present. If I had to guess, the treatment is likely to involve open wallet surgery.

Personally I wouldn't touch it with someone else's  ;). Unless you feel there's more money's worth of bits in it.
Title: Re: audi s4
Post by: johnnydog on 30 October 2016, 01:06:57
[I seem to remember that the 4.2 suffers from carbon build up and needs to be de-coked.


[/quote]

I understand it was the 4.2 engine fitted to the RS4, not the S4 that was prone to carbon fouling. The RS4's fuel was injected directly into to the cylinders, whereas the S4 was injected via the more conventional inlet side, therefore 'washing' out the inlet side before the fuel entered each cylinder. The RS4 suffered from the carbon build up because the fuel didn't 'wash' the inlet side as it was injected directly into each cylinder. Both had a 4.2 V8; the S4 was 344 bhp, whereas the RS4 was 414 bhp, although the effects of carbon fouling greatly reduced this figure in the RS4 overtime.
I had an 4.2 S4 many years ago; lovely engine, good performance, reasonable economy for an engine of that size, but above all, that beautiful V8 burble......